82 results on '"Pierre Cartigny"'
Search Results
2. Multiple sulfur isotope evidence for massive oceanic sulfate depletion in the aftermath of Snowball Earth
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Pierre Sansjofre, Pierre Cartigny, Ricardo I. F. Trindade, Afonso C. R. Nogueira, Pierre Agrinier, and Magali Ader
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Science - Abstract
Large positive sulphur isotope excursions, recorded in the wake of the Marinoan glaciation have previously been interpreted assuming stable ocean sulphate concentrations. Here, using multiple sulphur isotopes, the authors instead suggest significant ocean sulphate drawdown, driven by increased pyrite burial. more...
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- 2016
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Catalog
3. A 187Re-187Os, 87Rb-87Sr, highly siderophile and incompatible trace element study of some carbonaceous, ordinary and enstatite chondrite meteorites
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James M.D. Day, Christopher A. Corder, Kurt Marti, Yang Liu, Nelly Assayag, Nicole Phelan, Frédéric Moynier, Jasmeet K. Dhaliwal, Caleb Strom, Emily A. Pringle, and Pierre Cartigny
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Mineral ,Trace element ,Geochemistry ,engineering.material ,Silicate ,Parent body ,chemistry.chemical_compound ,chemistry ,Meteorite ,Geochemistry and Petrology ,Chondrite ,Enstatite ,engineering ,Ordinary chondrite - Abstract
New 187Re-187Os, 87Rb-87Sr, triple O-isotope isotope, bulk rock highly siderophile- (HSE: Os, Ir, Ru, Pt, Pd, Re), major- and trace-element abundance data are reported for a variety of carbonaceous, ordinary and enstatite chondrite meteorites. In addition, new mineral chemical data are reported for the Chelyabinsk LL5 ordinary chondrite fall for comparison with existing chondrite data and to investigate element sequestration into metal and mineral phases within some chondrites. The focus of the study is to link the variations observed in the HSE abundances and Re-Os isotopes with other isotopic and elemental data to explore the relative roles of sample sizes, terrestrial alteration and parent body processes more fully on chondrite meteorite compositions. Trace element variations in Chelyabinsk silicate, oxide and metal grains highlight the importance of geochemical heterogeneity imparted by mineralogical variations and mode effects, as well as sample size. Using a range of sample powder aliquot sizes, it is possible to show that this becomes significant for the HSE at more...
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- 2022
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4. Differentiation processes in FeO‐rich asteroids revealed by the achondrite Lewis Cliff 88763
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James M. D. Day, Christopher A. Corder, Douglas Rumble, Nelly Assayag, Pierre Cartigny, and Lawrence A. Taylor
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- 2015
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5. Early inner solar system origin for anomalous sulfur isotopes in differentiated protoplanets
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Michael A. Antonelli, Sang-Tae Kim, Marc Peters, Jabrane Labidi, Pierre Cartigny, Richard J. Walker, James R. Lyons, Joost Hoek, and James Farquhar
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- 2014
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6. Near-zero 33S and 36S anomalies in Pitcairn basalts suggest Proterozoic sediments in the EM-1 mantle plume
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Jabrane Labidi, James W. Dottin, Matthieu Clog, Christophe Hemond, and Pierre Cartigny
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Geophysics ,Space and Planetary Science ,Geochemistry and Petrology ,Earth and Planetary Sciences (miscellaneous) - Abstract
available from publisher's website.
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- 2022
7. South-hemispheric marine aerosol Hg and S isotope compositions reveal different oxidation pathways
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David AuYang, Jiubin Chen, Wang Zheng, Yanxu Zhang, Guitao Shi, Jeroen E. Sonke, Pierre Cartigny, Hongming Cai, Wei Yuan, Liangzhi Liu, Pengxue Gai, and Congqiang Liu
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Particle-bound mercury (PBM) records the oxidation of elemental mercury, of which the main oxidation pathways (Br/Cl/OH/O3) remain unclear, especially in the Southern-Hemisphere. Here, we present latitudinal covariations of Hg and S-isotopic anomalies in cross-hemispheric marine aerosols that evidence an equator-to-poleward transition of Hg oxidants from OH/O3 in tropics to Br/Cl in polar regions highlighting thus the presence of distinct oxidation processes producing PBM. The correlations between Hg, S and O-isotopic compositions measured in PBM, sulfates and nitrates respectively within the aerosols highlight the implication of common oxidants in their formations at different latitudes. Our results open a new window to better quantify the present-day atmospheric Hg, S and N budgets and to evaluate the influences of aerosols on climate and ecosystems once the isotopic fractionations associated to each process have been determined. more...
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- 2022
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8. Multiple sulfur isotopes signature of Thermochemical Sulfate Reduction (TSR): Insights from Alpine Triassic evaporites
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Guillaume Barré, Laurent Truche, Pierre Cartigny, Raymond Michels, Emilie Thomassot, Pierre Strzerzynski, Faculté des Sciences et Technologies [Université de Lorraine] (FST ), and Université de Lorraine (UL) more...
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010504 meteorology & atmospheric sciences ,Sulfide ,Analytical chemistry ,chemistry.chemical_element ,engineering.material ,Isotopes of sulfur ,01 natural sciences ,03 medical and health sciences ,chemistry.chemical_compound ,Geochemistry and Petrology ,Earth and Planetary Sciences (miscellaneous) ,Sulfate ,ComputingMilieux_MISCELLANEOUS ,030304 developmental biology ,0105 earth and related environmental sciences ,chemistry.chemical_classification ,0303 health sciences ,Anhydrite ,Sulfur cycle ,Mass-independent fractionation ,Sulfur ,Geophysics ,chemistry ,13. Climate action ,Space and Planetary Science ,[SDU]Sciences of the Universe [physics] ,engineering ,Pyrite ,Geology - Abstract
The sulfur cycle is driven by redox processes, among which sulfate reduction is of primary importance. Sulfate is reduced to sulfide either abiotically by Thermochemical Sulfate Reduction (TSR) or biotically by Microbial Sulfate Reduction (MSR). Although these two processes occur at different temperature regimes (>100 °C and δ 33 S, δ 34 S, δ 36 S) of natural TSR remains uncharacterized. Here, we performed multiple sulfur isotopes analyses of sulfates, sulfides, and elemental sulfur from six sites in the Alpine Triassic evaporites formation to better constrain the isotopic signatures of TSR. Unlike MSR, TSR can induce slight negative deviations ( Δ 33 S down to −0.08‰) relative to the initial sulfate Δ 33 S value, which significantly discriminates between these two processes. Isotopic equilibria between anhydrite and either elemental sulfur or sulfides (pyrite or chalcopyrite) were verified according to their mass-fractionation exponents ( θ 33 / 34 = 0.5140 and 0.5170, respectively). Using sulfate-elemental sulfur ( Δ 34 S SO 4 2−-S8) or sulfate-sulfide ( Δ 34 S SO 4 2−-S2−) fractionation pairs and respective fractionation factors ( α 34 ) for samples that fulfilled the criteria of isotopic equilibrium, we determined the precipitation temperatures of elemental sulfur and sulfides (pyrite or chalcopyrite) to be 194 ± 14 °C and 293–488 °C, respectively. Interestingly, the obtained temperature of elemental sulfur precipitation corresponds exactly to the solid-liquid phase transition of native sulfur. Using Δ 33 S vs. δ 34 S and Δ 33 S vs. Δ 36 S diagrams, we are able to fully explain the isotopic signatures of disequilibrium sulfides by the mixing of sulfate with either elemental or organic sulfur in the aqueous fluid. Mixing curves allow the determination of the relative proportions of sulfate and organic and elemental sulfur, the latter being formed by the recombination of polysulfides during cooling. It appears that the sulfides' signatures are best explained by a 33% contribution of polysulfides (i.e., elemental sulfur signatures), consistent with the relative proportion of dissolved polysulfides previously measured in fluid inclusions from this formation at >200 °C. Finally, no sulfur mass independent fractionation (S-MIF) is observed in this evaporitic formation, consistent with the TSR signature generated both at equilibrium and by mixing. This implies that TSR does not generate S-MIFs. Our results thus provide multiple sulfur isotopes signatures of TSR, which may be used to reliably identify this process in variable geological settings. more...
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- 2021
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9. Corrigendum to 'A 187Re-187Os, 87Rb-87Sr, highly siderophile and incompatible trace element study of some carbonaceous, ordinary and enstatite chondrite meteorites' [Geochim. Cosmochim. Acta 318 (2022) 19–54]
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Nicole Phelan, James M.D. Day, Jasmeet K. Dhaliwal, Yang Liu, Christopher A. Corder, Caleb Strom, Emily Pringle, Nelly Assayag, Pierre Cartigny, Kurt Marti, and Frédéric Moynier
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Geochemistry and Petrology - Published
- 2022
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10. An experimental test for the mass independent isotopic fractionation mechanism proposed for ozone
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Peter Reinhardt, François Robert, Pierre Cartigny, Lambert Baraut-Guinet, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de chimie théorique (LCT), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Université Paris Diderot - Paris 7 (UPD7)-IPG PARIS-Institut national des sciences de l'Univers (INSU - CNRS), and Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) more...
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Ozone ,Analytical chemistry ,General Physics and Astronomy ,Fractionation ,010402 general chemistry ,01 natural sciences ,Isotopes of oxygen ,law.invention ,chemistry.chemical_compound ,law ,0103 physical sciences ,Mass independent fractionation ,Physical and Theoretical Chemistry ,Distillation ,010304 chemical physics ,Isotope ,Theoretical predictions ,Scattering ,Condensation ,Mass-independent fractionation ,0104 chemical sciences ,chemistry ,13. Climate action ,Oxygen isotopes ,[PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph] ,Experimental observations - Abstract
International audience; Ozone exhibits large and mass independent isotopic fractionations (MIF) in oxygen isotope ratios relative to molecular di-oxygen (O2) from which it is formed. An interpretation of this effect was proposed based on the behavior of the indistinguishable isotopes 16O in scattering processes. We report here an experiment aimed at testing one of the predictions of this model.O3 was formed by high frequency discharge in O2 with pressures ranging between 1.6 and 38 Torr. The isotopic evolution of the closed O2 reservoir was monitored during its distillation taking place during the continuous removal of ozone by condensation. Its composition evolves from a mass independent to a mass dependent fractionation along with the decrease in pressure. The isotopic pathways defined by this evolution in the 3 isotopes diagram are in quantitative agreement with the theoretical prediction of the disappearance of MIF with the increase of the complex lifetime stabilized as ozone. more...
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- 2019
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11. The role of early diagenesis in the shaping of geochemical records : an example from Lake Dziani Dzaha, Mayotte
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Emmanuel Malet, François Baudin, Vincent Grossi, Pierre Cartigny, Ingrid Antheaume, Francois Gelin, Laurent Simon, Manuela Capano, Salomé Mignard, Magali Ader, Fabien Arnaud, Edouard Bard, Pierre Adam, Ivan Jovovic, Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de Strasbourg, Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut des Sciences de la Terre de Paris (iSTeP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Environnements, Dynamiques et Territoires de Montagne (EDYTEM), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Centre National de la Recherche Scientifique (CNRS), Environnements et Paléoenvironnements OCéaniques (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Centre scientifique et Technique Jean Feger (CSTJF), and TOTAL FINA ELF more...
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web-evolution-climat-ocean ,2HAL ,[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology ,Geochemistry ,traité ,Chaires ,BARD Édouard ,Geology ,Document sous DOI (Digital Object Identifier) ,Diagenesis ,Texte intégral (accès ouvert) - Abstract
https://hal.archives-ouvertes.fr/hal-03252301; International audience
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- 2021
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12. Comment on 'Correlation of the stratigraphic cover of the Pilbara and Kaapvaal cratons recording the lead up to Paleoproterozoic Icehouse and the GOE' by Andrey Bekker, Bryan Krapež, and Juha A. Karhu, 2020, Earth Science Reviews, https://doi.org/10.1016/j.earscirev.2020.103389
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Pascal Philippot, Bryan A. Killingsworth, Jean-Louis Paquette, Svetlana Tessalina, Pierre Cartigny, Stefan V. Lalonde, Christophe Thomazo, Janaina N. Ávila, Vincent Busigny, Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Departamento de Astronomia, Universidade de São Paulo, Universidade de São Paulo = University of São Paulo (USP), United States Geological Survey [Reston] (USGS), Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement et la société-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), John de Laeter Centre for Isotope Research, Curtin University [Perth], Planning and Transport Research Centre (PATREC)-Planning and Transport Research Centre (PATREC), Laboratoire Géosciences Océan (LGO), Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Biogéosciences [UMR 6282] (BGS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Research School of Earth Sciences [Canberra] (RSES), Australian National University (ANU), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Université des Antilles (UA)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Universidade de São Paulo (USP), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Biogéosciences [UMR 6282] [Dijon] (BGS), and Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS) more...
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0303 health sciences ,03 medical and health sciences ,General Earth and Planetary Sciences ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,010502 geochemistry & geophysics ,01 natural sciences ,ComputingMilieux_MISCELLANEOUS ,030304 developmental biology ,0105 earth and related environmental sciences - Abstract
International audience
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- 2021
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13. Sulphide Petrology and Contribution of Subducted Sulphur in Diamondiferous Garnet-Bearing Pyroxenites from Beni Bousera (Northern Morocco)
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Jabrane Labidi, Pierre Cartigny, Sylvain Courrech du Pont, Fatima El Atrassi, Jean-Pierre Lorand, Laboratoire de Planétologie et Géosciences [UMR_C 6112] (LPG), Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université libre de Bruxelles (ULB), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), and Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP) more...
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Bearing (mechanical) ,010504 meteorology & atmospheric sciences ,Subduction ,graphite ,[SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,troilite ,010502 geochemistry & geophysics ,01 natural sciences ,law.invention ,upper mantle ,Geophysics ,13. Climate action ,Geochemistry and Petrology ,law ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,black shales ,Petrology ,garnet pyroxenites ,Geology ,0105 earth and related environmental sciences ,[SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy - Abstract
This paper explores the unusual sulphide–graphite association of a selection of Beni Bousera garnet clinopyroxenites that initially equilibrated within the diamond stability field. Compared with common graphite-free garnet pyroxenites analysed so far, these rocks display tenfold S enrichment with concentrations up to 5550 μg g–1. Fe–Ni–Cu sulphides (up to 1·5 wt%) consist of large (up to 3 mm across), low-Ni pyrrrhotite ( more...
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- 2021
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14. Assessing sulfur sources and pyrite precipitation during eclogite-facies intra-slab fluid-flow (Monviso Lower Shear Zone, W. Alps)
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Isabelle Genot, Samuel Angiboust, and Pierre Cartigny
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chemistry ,engineering ,Fluid dynamics ,Geochemistry ,Slab ,chemistry.chemical_element ,Pyrite ,Precipitation ,engineering.material ,Shear zone ,Sulfur ,Geology ,Metamorphic facies - Published
- 2021
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15. Multiple isotope (O, S, Sr) constraints on the early Paleoproterozoic Great Oxidation Event from the Minas Supergroup, Minas Basin, Brazil
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Christophe Thomazo, Francesco Narduzzi, Pierre Cartigny, Delphine Bosch, Pascal Philippot, Camille Rossignol, and Stefan V. Lalonde
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Isotope ,Great Oxygenation Event ,Geochemistry ,Structural basin ,Supergroup ,Geology - Published
- 2021
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16. Elastic Recoil Detection Analysis of Hydrogen content in diamonds
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Pierre Cartigny, Hélène Bureau, Imène Esteve, Matthieu Charrondière-Lewis, Eloïse Gaillou, Keevin Béneut, Hicham Khodja, Sylvie Demouchy, and Jean-Claude Boulliard
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Elastic recoil detection ,Materials science ,Hydrogen content ,Molecular physics - Published
- 2021
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17. Multi O- and S-isotopes as tracers of black crusts formation under volcanic and non-volcanic atmospheric conditions in Sicily (Italy)
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Pierre Cartigny, Luciana Randazzo, Anne Chabas, Slimane Bekki, Giuseppe Montana, Adeline Aroskay, Erwan Martin, Aurélie Verney-Carron, Institut des Sciences de la Terre de Paris (iSTeP), Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS), STRATO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Dipartimento di Scienze della Terra e del Mare [Palermo] (DiSTeM), Università degli studi di Palermo - University of Palermo, Department of Biology, Ecology and Earth Sciences [Arcavacata di Rende] (DiBEST), Università della Calabria [Arcavacata di Rende] (Unical), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Agence Nationale de la Recherche (ANR), Sorbonne University through the 'Emergence' and 'Multi-disciplinary PhD Project', ANR-16-CE31-0010,PaleOX,Capacité oxidante de l'atmosphère du Cenozoique. Co-évolution avec la vie et le climat(2016), ANR-14-CE33-0009,FOFAMIFS,Formation et devenir des signatures isotopiques dites indépendantes de la masse(2014), Aroskay A., Martin E., Bekki S., Montana G., Randazzo L., Cartigny P., Chabas A., Verney-Carron A., Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), and Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) more...
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Environmental Engineering ,010504 meteorology & atmospheric sciences ,δ18O ,Geochemistry ,chemistry.chemical_element ,Δ17O anomaly ,010501 environmental sciences ,01 natural sciences ,Isotopes of oxygen ,chemistry.chemical_compound ,δ34S ,Environmental Chemistry ,skin and connective tissue diseases ,Waste Management and Disposal ,Settore GEO/09 -Georis. Miner.e Appl.Mineral.-Petrogr. per l'Ambi.ed i B.Cult ,0105 earth and related environmental sciences ,[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] ,Volcanic emission ,geography ,geography.geographical_feature_category ,integumentary system ,food and beverages ,Crust ,Sulphur isotope ,Pollution ,Sulfur ,Oxygen isotope ,Deposition (aerosol physics) ,chemistry ,Volcano ,Black crust ,13. Climate action ,Carbonate ,Geology ,Stone degradation - Abstract
International audience; The deterioration of monument or building stone materials is mostly due to the growth of black crusts that cause blackening and disaggregation of the exposed surface. This study reports on new oxygen (δ17O, δ18O and Δ17O) and sulphur (δ33S, δ34S, δ36S, Δ33S and Δ36S) isotopic analyses of black crust sulphates formed on building stones in Sicily (Southern Italy). The measurements are used to identify the possible influence of volcanic emissions on black crust formation. Black crusts were mostly sampled on carbonate stone substrate in different locations subject to various sulphur emission sources (marine, anthropogenic and volcanic). Unlike atmospheric sulphate aerosols that mostly exhibit Δ33S > 0‰, here most of the analysed black crust sulphates show negative Δ33S. This confirms that black crust sulphates do not result from deposition of sulphate aerosols or of rainwater but mostly from the oxidation of dry deposited SO2 onto the stone substrate. The δ34S and δ18O values indicate that most of black crust sulphate originates from anthropogenic activities. Δ17O values are found to be related to the sampling location. The largest 17O-anomalies (up to ~4‰) are measured in black crust from areas highly influenced by volcanic emissions, which demonstrates the strong involvement of ozone in the formation of black crusts in volcanically influenced environments. more...
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- 2021
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18. Is Archean sulfur recycled in plume sources? New observations at Pitcairn
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Christophe Hemond, J. W. Dottin, Jabrane Labidi, Pierre Cartigny, and Matthieu Clog
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chemistry ,Archean ,Geochemistry ,chemistry.chemical_element ,Sulfur ,Geology ,Plume - Published
- 2021
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19. Late accretion of volatiles to a dry proto-earth: really?
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Anat Shahar, Pierre Cartigny, Jabrane Labidi, James Farquhar, J. W. Dottin, Aierken Yierpan, and Edward D. Young
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Geology ,Earth (classical element) ,Astrobiology ,Accretion (finance) - Published
- 2021
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20. Early oxidation of the martian crust triggered by impacts
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Martin Bizzarro, Zhengbin Deng, Frédéric Moynier, Johan Villeneuve, Pierre Cartigny, Takashi Mikouchi, Arnaud Agranier, Julien Siebert, Ninna K. Jensen, Marc Chaussidon, Deze Liu, Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Centre de Recherches Pétrographiques et Géochimiques (CRPG), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG), Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Nord]), Region Île-de-France Sesame grant no. 12015908, Carlsberg Foundation (CF18_1105), the Danish National Research Foundation (DNRF97), ERC Advanced Grant Agreement 833275-DEEPTIME, ANR-10-LABX-0023,UnivEarthS,Earth - Planets - Universe: observation, modeling, transfer(2010), ANR-11-IDEX-0005,USPC,Université Sorbonne Paris Cité(2011), ANR-15-CE31-0004,CRADLE,Origine des chondrites: une approche croisée entre simulations numériques et analyses en laboratoire(2015), and European Project: 637503,H2020,ERC-2014-STG,PRISTINE(2015) more...
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010504 meteorology & atmospheric sciences ,Geochemistry ,DIVERSITY ,010502 geochemistry & geophysics ,OXYGEN FUGACITY ,01 natural sciences ,Atmosphere ,Mineral redox buffer ,CHEMISTRY ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,HISTORY ,GALE CRATER ,TEMPERATURE ,Research Articles ,0105 earth and related environmental sciences ,MELT ,Martian ,Multidisciplinary ,METEORITE ,Noachian ,MARS ,SciAdv r-articles ,Crust ,Mars Exploration Program ,Regolith ,Meteorite ,13. Climate action ,Space Sciences ,Geology ,TITANIUM ISOTOPE FRACTIONATION ,Research Article - Abstract
Impact-induced oxidation of Mars’ crust by water >4.4 Ga ago likely supplied enough atmospheric H2 to attain a warm climate., Despite the abundant geomorphological evidence for surface liquid water on Mars during the Noachian epoch (>3.7 billion years ago), attaining a warm climate to sustain liquid water on Mars at the period of the faint young Sun is a long-standing question. Here, we show that melts of ancient mafic clasts from a martian regolith meteorite, NWA 7533, experienced substantial Fe-Ti oxide fractionation. This implies early, impact-induced, oxidation events that increased by five to six orders of magnitude the oxygen fugacity of impact melts from remelting of the crust. Oxygen isotopic compositions of sequentially crystallized phases from the clasts show that progressive oxidation was due to interaction with an 17O-rich water reservoir. Such an early oxidation of the crust by impacts in the presence of water may have supplied greenhouse gas H2 that caused an increase in surface temperature in a CO2-thick atmosphere. more...
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- 2020
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21. Loi de Wagner et politiques culturelles : les vertus du bras armé
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Luc Champarnaud, Pierre Cartigny, Lille économie management - UMR 9221 (LEM), and Université d'Artois (UA)-Université catholique de Lille (UCL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) more...
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General Earth and Planetary Sciences ,[SHS.ECO]Humanities and Social Sciences/Economics and Finance ,General Environmental Science ,[SHS]Humanities and Social Sciences - Abstract
International audience; We compare the dynamic performance of two models of public intervention in the cultural sector : A centralized ministry’à la française’ and a so-called arm’s length bodies, more British. We study the solutions of a dynamic game where, by hypothesis, the agencies are likely to resist Wagner’s law better than a central regulator, because they can disengage from public funding projects and thus approach the optimal dynamic. The non-cooperative behavior of the agencies creates strategic biases that the center can partially correct. The problem of quality is also addressed.; Dans cet article, nous comparons les performances dynamiques de deux modèles d’intervention publique dans le secteur culturel : un ministère centralisé « à la française » et une organisation en agences dites du bras armé (arm’s length), d’inspiration britannique. Nous étudions les solutions d’un jeu dynamique où, par hypothèse, les agences sont susceptibles de mieux résister à la loi de Wagner qu’un régulateur central, car elles peuvent se désengager des projets de financement public et se rapprocher ainsi de la dynamique optimale. Le comportement non coopératif des agences crée des biais stratégiques mais le régulateur central peut partiellement les corriger. Le problème de la qualité est également abordé. more...
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- 2020
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22. Tectono-metamorphic evolution of an evaporitic décollement as recorded by mineral and fluid geochemistry: The 'Nappe des Gypses' (Western Alps) case study
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Guillaume Barré, Laurent Truche, Raymond Michels, Pierre Cartigny, Stéphane Guillot, Pierre Strzerzynski, Emilie Thomassot, Catherine Lorgeoux, Nelly Assayag, GeoRessources, Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)-Centre de recherches sur la géologie des matières premières minérales et énergétiques (CREGU)-Institut national des sciences de l'Univers (INSU - CNRS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences de la Terre (ISTerre), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement [IRD] : UR219-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre de Recherches Pétrographiques et Géochimiques (CRPG), Université de Lorraine (UL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Centre de recherches sur la géologie des matières premières minérales et énergétiques (CREGU)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), ANR-10-LABX-0021,RESSOURCES21,Strategic metal resources of the 21st century(2010), and ANR-10-LABX-0056,OSUG@2020,Innovative strategies for observing and modelling natural systems(2010) more...
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[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics ,Décollement ,Metamorphism ,010504 meteorology & atmospheric sciences ,Metamorphic rock ,Evaporites ,Alps ,Geochemistry ,Geology ,15. Life on land ,010502 geochemistry & geophysics ,01 natural sciences ,Nappe ,Petrography ,Geochemistry and Petrology ,Passive margin ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,Facies ,Stable Isotopes 43 analysis 44 ,Structural geology ,Fluid inclusions ,0105 earth and related environmental sciences - Abstract
International audience; 16 Evaporites play a major role on the structuration of collisional orogens especially when they 17 act as décollement units. However, their exact pressure-temperature-deformation (P-T-d) paths 18 are poorly documented. In this study, the first direct P-T-d constraints of the "Nappe des 19 Gypses" formation (western French Alps) have been established. An innovative association of 20 structural geology, petrography, crystallochemistry, and detailed study of both fluid inclusions 21 and stable isotopes (C, O) analysis has been applied to this evaporitic facies. Geochemical 22 analysis shows that the "Nappe des Gypses" formation has recorded the three typical 23 metamorphic and deformational events of the Alps (namely D1, D2 and D3). These different 24 constraints allow the determination of the first determination of the P-T path for this unit. 25 Metamorphic peak conditions of the "Nappe des Gypses" are at 16.6 ± 2.3 kbars and 431°C ± 26 28°C. This formation was buried at similar conditions than the oceanic units. During the 27 exhumation path, the D1-D2 transition is reached at 350°C ± 20°C and 6.5 ± 1.8 kbars and the 28 D2-D3 transition is assumed to be at 259°C ± 24°C and 2.0 ± 1.0 kbars (Strzerzynski et al., 29 2012). Peak P-T conditions overlap those of the median Liguro-Piemontese units but are 30 different from those of the Briançonnais units. It implies 1) an active and crucial role of the 31 "Nappe des Gypses" during the exhumation of the Alpine oceanic complex. And 2) confirms the 32 allochthonous and more distal origin of the European Thetysian passive margin of the "Nappe 33 des Gypses" formation. Consideration of sulfates dehydration probably between 15.0 and 16.6 34 kbars and 200 and 300°C, allows to discuss pore pressure excess and its mechanical 35 consequences on the exhumation process. This process is very likely to amplify the 36 "décollement" effect of the evaporites and allow the nappe stack formation. 37 This illustrates the role of this formation as a décollement surface. This difference of 38 evolution highlights the major role of the evaporitic formations on the exhumation and 39 structuration of a collisional chain. Such methodology could contribute to decipher the role of 40 evaporites in the structural context of other collisional chains such as Himalaya, Pyrenees or 41 Zagros. 42 more...
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- 2020
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23. Atmospheric SO2 oxidation by NO2 plays no role in the mass independent sulfur isotope fractionation of urban aerosols
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G. Bardoux, Pierre Cartigny, David Widory, D. Au Yang, C. Laskar, and Nelly Assayag
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Atmospheric Science ,010504 meteorology & atmospheric sciences ,chemistry.chemical_element ,010501 environmental sciences ,Mass-independent fractionation ,01 natural sciences ,Redox ,Sulfur ,Aerosol ,chemistry.chemical_compound ,Isotope fractionation ,chemistry ,Environmental chemistry ,Oxidizing agent ,Sulfate ,Urban environment ,0105 earth and related environmental sciences ,General Environmental Science - Abstract
Modern anthropogenic aerosols usually exhibit low but significant Δ33S signatures (−0.6 to 0.5‰) whose origin still remains unclear. While isotope fractionation factors associated with the oxidation of SO2 by O2+TMI (Transition Metal Ion), H2O2 or OH cannot lead to such extreme Δ33S-values, an increasing number of studies points to the significant role of NO2 as a contributing oxidant, especially in the urban environment. To address the possible relation between atmospheric NO2 and observed Δ33S-values in aerosols, we carried out laboratory experiments oxidizing SO2 by NO2 at temperatures ranging between −7 and 52 °C. Our results show that at temperatures ≥10 °C SO2 oxidation by NO2 is characterized by 1) a 34α-value whose temperature dependence (0.2437/T+0.0457) is distinct from those related to oxidation by O2+TMI, H2O2 and OH oxidation pathways and 2) 33β (0.514 ± 0.0003) and 36β (1.90 ± 0.002) values that are closer to the mass dependent values (0.515 and 1.89 respectively) than those reported for the other oxidation pathways. This implies that the NO2 oxidation pathway cannot explain the extreme Δ33S-values measured in urban aerosols. Our data show that if atmospheric SO2 oxidation by NO2 is neglected, both the O2+TMI and OH oxidation pathways would be overestimated in urban areas. Finally, we conclude that another oxidation reaction is responsible for the high Δ33S-values measured in urban aerosol samples. more...
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- 2018
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24. Fourier transform infrared spectroscopy data and carbon isotope characteristics of the ophiolite-hosted diamonds from the Luobusa ophiolite, Tibet, and Ray-Iz ophiolite, Polar Urals
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Guolin Guo, Xiangzhen Xu, Fahui Xiong, Jingsui Yang, Yildirim Dilek, Pierre Cartigny, Institut de Physique du Globe de Paris (IPGP), Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Université Paris Diderot - Paris 7 (UPD7)-IPG PARIS-Institut national des sciences de l'Univers (INSU - CNRS), Miami University [Ohio] (MU), and East China Institute of Technology more...
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010504 meteorology & atmospheric sciences ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,13. Climate action ,Isotopes of carbon ,Geochemistry ,Polar ,Geology ,Fourier transform infrared spectroscopy ,010502 geochemistry & geophysics ,Ophiolite ,01 natural sciences ,0105 earth and related environmental sciences - Abstract
International audience; We report new δ 13 C data and N content and aggregation state values for microdiamonds recovered from peridotites and chromitites of the Luobusa ophiolite (Tibet) and chromitites of the Ray-Iz ophiolite in the Polar Urals (Russia). All analyzed microdiamonds contain significant nitrogen contents (from 108 to 589 atomic ppm ± 20%) with a consistently low aggregation state and show identical infrared spectra dominated by strong absorption between 1130 cm –1 and 1344 cm –1 , and therefore characterize type Ib diamond. Microdiamonds from the Luobusa peridotites have δ 13 C (PDB) values ranging from −28.7‰ to −16.9‰, and N contents from 151 to 589 atomic ppm. The δ 13 C and N content values for diamonds from the Luobusa chromitites are −29‰ to −15.5‰ and 152–428 atomic ppm, respectively. Microdiamonds from the Ray-Iz chromitites show δ 13 C values varying from −27.6‰ to −21.6‰ and N contents from 108 to 499 atomic ppm. The carbon isotopes values have features similar to previously analyzed metamorphic diamonds from other worldwide localities, but the samples are characterized by lower N contents. In every respect, they are different from diamonds occurring in kimberlites and impact craters. Our samples also differ from the few synthetic diamonds we analyzed, in that they show enhanced δ 13 C variability and less advanced aggregation state than synthetic diamonds. Our newly obtained N aggregation state and N content data are consistent with diamond formation over a narrow and rather cold temperature range (i.e. more...
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- 2017
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25. A carbon-rich region in Miller Range 091004 and implications for ureilite petrogenesis
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Pierre Cartigny, Lawrence A. Taylor, Douglas Rumble, Christopher A. Corder, Andrew Steele, James M.D. Day, and Nelly Assayag
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Olivine ,010504 meteorology & atmospheric sciences ,Geochemistry ,Mineralogy ,Ureilite ,Pyroxene ,engineering.material ,010502 geochemistry & geophysics ,01 natural sciences ,Parent body ,Silicate ,Troilite ,chemistry.chemical_compound ,Schreibersite ,chemistry ,Meteorite ,Geochemistry and Petrology ,engineering ,Geology ,0105 earth and related environmental sciences - Abstract
Ureilite meteorites are partially melted asteroidal-peridotite residues, or more rarely, cumulates that can contain greater than three weight percent carbon. Here we describe an exceptional C-rich lithology, composed of 34 modal % large (up to 0.8 mm long) crystalline graphite grains, in the Antarctic ureilite meteorite Miller Range (MIL) 091004. This C-rich lithology is embedded within a silicate region composed dominantly of granular olivine with lesser quantities of low-Ca pyroxene, and minor FeNi metal, high-Ca pyroxene, spinel, schreibersite and troilite. Petrological evidence indicates that the graphite was added after formation of the silicate region and melt depletion. Associated with graphite is localized reduction of host olivine (Fo88–89) to nearly pure forsterite (Fo99), which is associated with FeNi metal grains containing up to 11 wt.% Si. The main silicate region is typical of ureilite composition, with highly siderophile element (HSE) abundances ∼0.3 × chondrite, 187Os/188Os of 0.1260–0.1262 and Δ17O of −0.81 ± 0.16‰. Mineral trace-element analyses reveal that the rare earth elements (REE) and the HSE are controlled by pyroxene and FeNi metal phases in the meteorite, respectively. Modeling of bulk-rock REE and HSE abundances indicates that the main silicate region experienced ∼6% silicate and >50% sulfide melt extraction, which is at the lower end of partial melt removal estimated for ureilites. Miller Range 091004 demonstrates heterogeneous distribution of carbon at centimeter scales and a limited range in Mg/(Mg + Fe) compositions of silicate grain cores, despite significant quantities of carbon. These observations demonstrate that silicate rim reduction was a rapid disequilibrium process, and came after silicate and sulfide melt removal in MIL 091004. The petrography and mineral chemistry of MIL 091004 is permissive of the graphite representing late-stage C-rich melt that pervaded silicates, or carbon that acted as a lubricant during anatexis and impact disruption in the parent body. Positive correlation of Pt/Os ratios with olivine core compositions, but a wide range of oxygen isotope compositions, indicates that ureilites formed from a compositionally heterogeneous parent body that experienced variable sulfide and metal melt-loss that is most pronounced in relatively oxidized ureilites with Δ17O between −1.5 and ∼0‰. more...
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- 2017
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26. Multiple Sulfur Isotopes of Carbonatites, a Window into their Formation Conditions
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Amaury Bouyon, Martin Klausen, João Mata, Sebastian Tappe, James Farquhar, and Pierre Cartigny
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- 2020
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27. A Modern Analogue for Superheavy Pyrites?
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Pierre Cadeau, Pierre Cartigny, Christophe Thomazo, Gerard Sarazin, Didier Jézéquel, Christophe Leboulanger, and Magali Ader
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- 2020
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28. Multiple sulfur isotope fractionation in hydrothermal systems in the presence of radical ions and molecular sulfur
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Nelly Assayag, Maria A. Kokh, Pierre Cartigny, Andrey A. Gurenko, Stéphanie Mounic, Gleb S. Pokrovski, Géosciences Environnement Toulouse (GET), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre de Recherches Pétrographiques et Géochimiques (CRPG), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), and ANR-16-CE31-0017,RADICALS,Les radicaux de soufre et leurs applications pour les ressources minérales, l'évolution des magmas et la géochimie isotopique(2016) more...
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010504 meteorology & atmospheric sciences ,Sulfide ,Inorganic chemistry ,chemistry.chemical_element ,engineering.material ,010502 geochemistry & geophysics ,Sulfur isotopes ,01 natural sciences ,chemistry.chemical_compound ,Experiment ,Isotope fractionation ,δ34S ,Disulfur radical ion ,Geochemistry and Petrology ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,Trisulfur radical ion ,Hydrothermal fluid ,Mass independent fractionation (MIF) ,Polysulfide ,0105 earth and related environmental sciences ,Thiosulfate ,chemistry.chemical_classification ,Mass dependent fractionation (MDF) ,Mass-independent fractionation ,Sulfur ,chemistry ,13. Climate action ,engineering ,Pyrite ,Molecular sulfur ,[SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy - Abstract
International audience; This study is aimed to evaluate the role played by the sulfur radical ions (S3− and S2−) and molecular sulfur (S0) on sulfur isotope fractionation and to investigate if these species may leave an isotope fingerprint in hydrothermal systems. For this purpose, we combined (i) experiments using a hydrothermal reactor with aqueous S3−(S2−)-S0-sulfate-sulfide fluids and pyrite across a wide range of temperatures (300–450 °C), pressures (300–800 bars), fluid acidity (4 more...
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- 2020
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29. Eustatic Control on Superheavy δ34S Pyrite Trends from Late Ediacaran-early Cambrian Carbonate Successions of the West Gondwana: Sulfate Distillation Cycles in Shallow Water Platforms?
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Sergio Caetano-Filho, Gustavo Paula-Santos, Pierre Sansjofre, Pierre Cartigny, Magali Ader, Cristian Guacaneme, Marly Babisnki, Matheus Kuchenbecker, Humberto Reis, and Ricardo Trindade
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- 2020
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30. Isotopic Compositions of Hg in Cross-Hemisphere Marine Aerosols Reveal Different Hg0 Redox Reactions
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Au Yang David, JiuBin Chen, Wang Zheng, Jeroen Sonke, Guitao Shi, Hongming Cai, Wei Yuan, and Pierre Cartigny
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- 2020
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31. A re-assessment of the nitrogen geochemical behavior in upper oceanic crust from Hole 504B: Implications for subduction budget in Central America
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Magali Bonifacie, Vincent Busigny, Pierre Cartigny, Pierre Agrinier, Damon A. H. Teagle, Christine Laverne, Institut de Physique du Globe de Paris (IPGP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de pétrologie Magmatique, Université Paul Cézanne - Aix-Marseille 3, National Oceanography Centre [Southampton] (NOC), University of Southampton, Institut de Physique du Globe de Paris, and Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Université Paris Diderot - Paris 7 (UPD7)-IPG PARIS-Institut national des sciences de l'Univers (INSU - CNRS) more...
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hydrothermal ,010504 meteorology & atmospheric sciences ,Geochemistry ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,oceanic crust ,010502 geochemistry & geophysics ,01 natural sciences ,Hydrothermal circulation ,Mantle (geology) ,nitrogen ,Geochemistry and Petrology ,Oceanic crust ,Earth and Planetary Sciences (miscellaneous) ,Geothermal gradient ,ComputingMilieux_MISCELLANEOUS ,isotopes ,0105 earth and related environmental sciences ,Basalt ,geography ,geography.geographical_feature_category ,Volcanic arc ,Subduction ,Crust ,Geophysics ,13. Climate action ,Space and Planetary Science ,subduction ,Geology - Abstract
The geochemical behavior of N during seawater-oceanic crust alteration remains poorly constrained. Yet, it is a central parameter to assess the flux of N to subduction zones. Most studies proposed that hydrothermally altered basaltic rocks are enriched in N relative to fresh basalts. However, published data from DSDP/ODP Hole 504B, a reference site for the composition of the oceanic crust, suggest that seawater alteration leads to the N depletion of the upper ocean crust. To better address this issue, we analyzed N concentration and isotope composition of 21 altered basalts from the lavas and sheeted dikes sampled by Hole 504B. These new analyses show significant N enrichment (up to 14.1 ppm) relative to fresh degassed MORB (∼1 ppm). The differences observed between earlier and modern data are interpreted as resulting from analytical artifact due to the earlier use of a molybdenum crucible for N extraction. Furthermore, our new data show a progressive decrease of N concentration with depth, from 14.1 to 1.4 ppm. Nitrogen isotope compositions display a large range, with δ15N values from −0.9 to +7.3‰, and most likely reflect multiple stages of alteration with fluids of various compositions. In contrast to N concentration, δ15N values do not show a global depth trend but oscillate around a mean value of 3.0 ± 2.2‰ (1SD). The N concentration shows a positive correlation with bulk rock δ18O values, suggesting that N behavior during alteration process is mainly controlled by temperature. We propose that N speciation in the hydrothermal fluid is dominated by NH3/NH4 at low temperature (2, associated with H2, at higher temperature (>200 °C). These new data are used to re-evaluate the global flux of N input into Central American subduction zone, showing that the upper basaltic crust represent about 20% of the total N buried in subduction zone. A comparison with previous results obtained on N degassed in volcanic arc illustrates that, in “warm” subduction zone like Central America, up to 50% of the subducted N may be transferred to the deep mantle. This contrasts with “cold” subduction environments, where >80% of the N inputs escape sub-arc slab devolatilization and supports that the geothermal gradient plays a major role in determining the N fate in subduction zones. more...
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- 2019
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32. Diamonds and the Mantle Geodynamics of Carbon
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Sami Mikhail, Richard A. Stern, Steven D. Jacobsen, Emilie Thomassot, Karen V. Smit, Hélène Bureau, Antony D. Burnham, Oded Navon, Steven B. Shirey, Erik H. Hauri, Fabrizio Nestola, Vincenzo Stagno, Y. Weiss, Frank E. Brenker, Sonja Aulbach, Robert W. Luth, Andrew Steele, Michael J. Walter, Thomas Chacko, Thomas Stachel, Dorrit E. Jacob, M. Palot, D. Graham Pearson, Andrew Thomson, Simon C. Kohn, Paolo Nimis, Evan M. Smith, Daniel J. Frost, and Pierre Cartigny more...
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Earth history ,010504 meteorology & atmospheric sciences ,Diamond ,Geodynamics ,engineering.material ,010502 geochemistry & geophysics ,01 natural sciences ,Mantle (geology) ,Astrobiology ,Carbon cycle ,Transition zone ,engineering ,Kimberlite ,Geology ,0105 earth and related environmental sciences - Abstract
The science of studying diamond inclusions for understanding Earth history has developed significantly over the past decades, with new instrumentation and techniques applied to diamond sample archives revealing the stories contained within diamond inclusions. This chapter reviews what diamonds can tell us about the deep carbon cycle over the course of Earth’s history. It reviews how the geochemistry of diamonds and their inclusions inform us about the deep carbon cycle, the origin of the diamonds in Earth’s mantle, and the evolution of diamonds through time. more...
- Published
- 2019
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33. Constraining the rise of oxygen with oxygen isotopes
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Stefan V. Lalonde, Pascal Philippot, Pierre Cartigny, Christophe Thomazo, Pierre Sansjofre, Bryan A. Killingsworth, Laboratoire Géosciences Océan (LGO), Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Biogéosciences [UMR 6282] (BGS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 708117, from a Region of Brittany Strategy of Attractivity Grant (SAD Project S-GEOBIO, No 0461/14007339/00001041 and 0461/14007349/00001041), and from the São Paulo Research Foundation (FAPESP, grant 2015/16235-2)., ANR-11-IDEX-0005,USPC,Université Sorbonne Paris Cité(2011), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Université Paris Diderot - Paris 7 (UPD7)-IPG PARIS-Institut national des sciences de l'Univers (INSU - CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Université des Antilles (UA)-Centre National de la Recherche Scientifique (CNRS), Biogéosciences [UMR 6282] [Dijon] (BGS), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD), and ANR-11-IDEX-0005-02/10-LABX-0023,UnivEarthS,Earth - Planets - Universe: observation, modeling, transfer(2011) more...
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Atmospheric chemistry ,010504 meteorology & atmospheric sciences ,Sulfide ,Science ,Geochemistry ,General Physics and Astronomy ,chemistry.chemical_element ,Weathering ,010502 geochemistry & geophysics ,01 natural sciences ,General Biochemistry, Genetics and Molecular Biology ,Isotopes of oxygen ,Article ,chemistry.chemical_compound ,Palaeoceanography ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,Element cycles ,Sulfate ,Author Correction ,lcsh:Science ,0105 earth and related environmental sciences ,chemistry.chemical_classification ,Multidisciplinary ,Sulfur cycle ,General Chemistry ,Sulfur ,chemistry ,Marine chemistry ,13. Climate action ,Meteoric water ,lcsh:Q ,Sedimentary rock - Abstract
After permanent atmospheric oxygenation, anomalous sulfur isotope compositions were lost from sedimentary rocks, demonstrating that atmospheric chemistry ceded its control of Earth’s surficial sulfur cycle to weathering. However, mixed signals of anoxia and oxygenation in the sulfur isotope record between 2.5 to 2.3 billion years (Ga) ago require independent clarification, for example via oxygen isotopes in sulfate. Here we show, The loss of anomalous sulfur isotope compositions from sedimentary rocks has been considered a symptom of permanent atmospheric oxygenation. Here the authors show sulfur and oxygen isotope evidence from more...
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- 2019
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34. Oxygen and sulfur mass-independent isotopic signatures in black crusts: the complementary negative ∆33S-reservoir of sulfate aerosols?
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Isabelle Genot, David Au Yang, Erwan Martin, Pierre Cartigny, Erwann Legendre, and Marc De Rafelis
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To better understand the formation and the oxidation pathways leading to gypsum-forming “black crusts” and investigate their bearing on the whole atmospheric SO2 cycle, we measured the oxygen (δ17O, δ18O and ∆17O) and sulfur (δ33S, δ34S, δ36S, ∆33S and ∆36S) isotopic compositions of black crust sulfates sampled on carbonate building stones along a NW-SE cross-section in the Parisian basin. The δ18O and δ34S, ranging between 7.5 and 16.7 ± 0.5 ‰ (n = 27, 2σ) and between −2.6 and 13.9 ± 0.2 ‰ respectively, show anthropogenic SO2 as the main sulfur source (from 2 to 81 %, in average ~30 %) with host-rock sulfates making the complement. This is supported by ∆17O-values (up to 2.6 ‰, in average ~0.86 ‰), requiring > 60 % of atmospheric sulfates in black crusts. Both negative ∆33S-∆36S-values between −0.34 and 0.00 ± 0.01 ‰ and between −0.7 and −0.2 ± 0.2 ‰ respectively were measured in black crusts sulfates, that is typical of a magnetic isotope effect that would occur during the SO2 oxidation on the building stone, leading to 33S-depletion in black crust sulfates and subsequent 33S-enrichment in residual SO2. Given that sulfate aerosols have mostly ∆33S > 0 ‰ and no processes can yet explain this enrichment, resulting in a non-consistent S-budget, black crust sulfates could well represent the complementary negative ∆33S-reservoir of the sulfate aerosols solving the atmospheric SO2 budget. more...
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- 2019
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35. Supplementary material to 'Oxygen and sulfur mass-independent isotopic signatures in black crusts: the complementary negative ∆33S-reservoir of sulfate aerosols?'
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Isabelle Genot, David Au Yang, Erwan Martin, Pierre Cartigny, Erwann Legendre, and Marc De Rafelis
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- 2019
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36. Deep Carbon
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D. Graham Pearson, Erik H. Hauri, Steven B. Shirey, Robert W. Luth, Thomas Chacko, Fabrizio Nestola, Daniel J. Frost, Pierre Cartigny, Emilie Thomassot, Frank E. Brenker, Karen V. Smit, Oded Navon, Evan M. Smith, Andrew Steele, Paolo Nimis, Sonja Aulbach, Michael J. Walter, Vincenzo Stagno, Simon C. Kohn, Richard A. Stern, Steven D. Jacobsen, Antony D. Burnham, Dorrit E. Jacob, M. Palot, Hélène Bureau, Thomas Stachel, Y. Weiss, Sami Mikhail, and Andrew Thomson more...
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Subduction ,Earth science ,Transition zone ,engineering ,Diamond ,Crust ,engineering.material ,Geodynamics ,Kimberlite ,Geology ,Mantle (geology) ,Metallogeny - Abstract
SBS and EHH for support from the US National Science Foundation (EAR-104992); FN and PN for support from the European Research Council Starting Grant (#307322); Wuyi Wang and Tom Moses of the Gemological Institute of America (GIA) for the support of the research projects undertaken by KVS and EMS; and SCK for the support of De Beers Technologies. This is contribution 1168 from the ARC Centre of Excellence for Core to Crust Fluid Systems (www.ccfs.mq.edu.au) and 1130 in the Geochemical Evolution and Metallogeny of the Continents Key Centre (www.gemoc.mq.edu.au). more...
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- 2019
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37. Multiple sulfur isotope signals associated with the late Smithian event and the Smithian/Spathian boundary
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Pierre Sansjofre, Gwénaël Caravaca, Gilles Escarguel, Emmanuel Fara, Emmanuelle Vennin, Nicolas Olivier, James F. Jenks, S. Elmeknassi, Christophe Thomazo, Daniel A. Stephen, Pierre Cartigny, Bryan A. Killingsworth, Kevin G. Bylund, Arnaud Brayard, Biogéosciences [UMR 6282] [Dijon] (BGS), Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut de Recherche pour le Développement et la société-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE), Department of Earth Science, Utah Valley University (UVU), Laboratoire Géosciences Océan (LGO), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Work supported by the French 'Investissements d'Avenir' Program and by the FEDER Bourgogne., ANR-13-JS06-0001,AFTER,Après la fin : la reconstruction des communautés marines durant la rediversification du Trias inférieur.(2013), ANR: ISITE-BFC,ANR-15-IDEX-0003, Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Université Paris Diderot - Paris 7 (UPD7)-IPG PARIS-Institut national des sciences de l'Univers (INSU - CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut de Recherche pour le Développement et la société-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Centre National de la Recherche Scientifique (CNRS), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), ANR-15-IDEX-0003,BFC,ISITE ' BFC(2015), Biogéosciences [UMR 6282] (BGS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Institut de Recherche pour le Développement et la société-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut national des sciences de l'Univers (INSU - CNRS) more...
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Extinction event ,010504 meteorology & atmospheric sciences ,Early Triassic ,Geochemistry ,Sulfur cycle ,Ocean acidification ,010502 geochemistry & geophysics ,01 natural sciences ,Anoxic waters ,Water column ,13. Climate action ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,General Earth and Planetary Sciences ,Sedimentary rock ,14. Life underwater ,Bioturbation ,Geology ,0105 earth and related environmental sciences - Abstract
18 pages; International audience; The Early Triassic is generally portrayed as a time of various, high ecological stresses leading to a delayed biotic recovery after the devastating end-Permian mass extinction. This interval is notably characterized by repeated biotic crises (e.g., during the late Smithian), large-scale fluctuations of the global carbon, nitrogen and sulfur cycles as well as harsh marine conditions including a combination of ocean acidification, anoxia, extreme seawater temperatures and shifting productivity. Observations from different paleolatitudes suggest that sulfidic (H2S-rich) conditions may have developed widely during the Early Triassic, possibly reaching up to ultra-shallow environments in some places. However, the existence and the spatio-temporal extent of such redox swings remain poorly constrained. In order to explore Early Triassic paleoceanographic redox changes and their potential influences on the biotic recovery, we analyzed multiple sulfur isotopes (32S, 33S, 34S, and 36S) of sedimentary pyrite and carbonate associated sulfate (δ34SCAS) from the Mineral Mountains section, Utah. Sediments from this section were mainly deposited in shallow waters and span the Smithian and lower Spathian. We report a 68‰ range of variations in δ34Spy associated with Δ33Spy varying from −0.01‰ to +0.12‰, whereas the δ34SCAS varies between +19.5‰ and + 34.8‰. We interpret the observed signal of multiple sulfur isotopes as reflecting the operation of pore-water synsedimentary microbial sulfate reduction in open system with respect to sulfates before the late Smithian, evolving to a closed system, sulfate limited, Rayleigh-type distillation across the Smithian/Spathian boundary (SSB) and immediately after the SSB. We argue that this marked change is driven by the effectiveness of the connection between the sedimentary pore waters and the overlying water column, which is, in this case, controlled by the local sedimentological conditions such as the bioturbation intensity and the sedimentation rate. Therefore, our results suggest that changes in the sulfur cycle before and across the SSB at Mineral Mountains is probably a local consequence of the loss of the mixed sedimentary layer during the late Smithian extinction event, as opposed to reflecting the development of a lethal anoxic ocean at the global scale. more...
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- 2019
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38. Intercomparison measurements of two 33 S-enriched sulfur isotope standards
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Lei Geng, Nicolas Caillon, Naohiro Yoshida, Sakiko Ishino, Elsa Gautier, Emmanuelle Albalat, Mark H. Thiemens, Nivea Magalhães, Francis Albarède, Pierre Cartigny, Joel Savarino, J. W. Dottin, Shuhei Ono, Shohei Hattori, James Farquhar, Institute of Sound and Vibration Research, Hefei University of Technology, Université Paris Diderot - Paris 7 (UPD7), Institut des Géosciences de l’Environnement (IGE), Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de géographie physique : Environnements Quaternaires et Actuels (LGP), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), University of Maryland [College Park], University of Maryland System, Tokyo Institute of Technology [Tokyo] (TITECH), Frontier Collaborative Research Center (FCRC), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Department of Chemistry and Biochemistry, University of California [San Diego] (UC San Diego), University of California (UC)-University of California (UC), University of Science and Technology of China [Hefei] (USTC), Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge] (EAPS), Massachusetts Institute of Technology (MIT), University of California (UC), grant agreement No. 700853, Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement [Lyon] (LGL-TPE), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Université Paris Diderot - Paris 7 (UPD7)-IPG PARIS-Institut national des sciences de l'Univers (INSU - CNRS), University of California, Laboratoire de glaciologie et géophysique de l'environnement (LGGE), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Université Panthéon-Sorbonne (UP1), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), University of California-University of California, Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Recherche pour le Développement (IRD)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), University of St Andrews. School of Earth & Environmental Sciences, and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) more...
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Normalization (statistics) ,Isotope ,δ18O ,010401 analytical chemistry ,chemistry.chemical_element ,DAS ,Fractionation ,010501 environmental sciences ,Mass spectrometry ,QD Chemistry ,01 natural sciences ,Sulfur ,0104 chemical sciences ,Analytical Chemistry ,δ34S ,chemistry ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,[CHIM.ANAL]Chemical Sciences/Analytical chemistry ,Environmental chemistry ,Environmental science ,QD ,Spectroscopy ,ComputingMilieux_MISCELLANEOUS ,0105 earth and related environmental sciences - Abstract
The Agence Nationale de la Recherche (ANR) via contract NT09-431976-VOLSOL is acknowledged for the financial support for JS. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska Curie grant agreement No. 700853. This work has also supported by the Japan Society for the Promotion of Science KAKENHI Grant Numbers 16H05884 (S. H.), 25887025, and 17H06105 (N. Y.). S. H. and J. S. appreciate support for this project from JSPS and CNRS under the JSPS–CNRS Joint Research Program. Travel visit support for J. S. was provided by the CNRS/PICS program. JF acknowledges support from NNX16AG39G and the Agouron Foundation. LG acknowledges Marie Curie Individual Fellowship and the University of Science and Technology of China, and additional financial support from the National Key Research and Development Program of China (2016YFA0302200) and National Science Foundation of China (41822605). NM acknowledges the Brazilian Government for a Science without Borders Fellowship (BEX1136-13-5). FA and EA thank Philippe Telouk for help with instrument tuning and INSU and ENS Lyon for support. Despite widespread applications of sulfur isotope mass-independent fractionation (MIF) signals for probing terrestrial and extra-terrestrial environments, there has been no international sulfur isotope reference material available for normalization of Δ33S and Δ36S data. International reference materials to anchor isotope values are useful for interlaboratory data comparisons and are needed to evaluate, e.g., whether issues exist associated with blanks and mass spectrometry when using different analytical approaches. We synthesized two sodium sulfate samples enriched in 33S with different magnitudes, and termed them S-MIF-1 and S-MIF-2, respectively. The sulfur isotopic compositions of these two samples were measured in five different laboratories using two distinct techniques to place them on the V-CDT scale for δ34S and a provisional V-CDT scale for Δ33S and Δ36S. We obtained average δ34S values of S-MIF-1 = 10.26 ± 0.22‰ and S-MIF-2 = 21.53 ± 0.26‰ (1σ, versus V-CDT). The average Δ33S and Δ36S values of S-MIF-1 were determined to be 9.54 ± 0.09‰ and -0.11 ± 0.25‰, respectively, while the average Δ33S and Δ36S values of S-MIF-2 are 11.39 ± 0.08‰ and -0.33 ± 0.13‰ (1σ, versus V-CDT). The lack of variation among the interlaboratory isotopic values suggests sufficient homogeneity of S-MIF-1 and S-MIF-2, especially for Δ33S. Although additional measurements may be needed to ensure the accuracy of the isotopic compositions of S-MIF-1 and S-MIF-2, they can serve as working standards for routine Δ33S analysis to improve data consistency, and have the potential to serve as secondary sulfur isotope reference materials to address issues such as scale contraction/expansion and for normalization and reporting of Δ33S and Δ36S between laboratories. For the same reasons as listed for sulfur isotopes, the same standards were also artificially enriched in 17O. The calibration is still in progress but first estimations gave Δ17O = 3.3 ± 0.3‰ with unassigned δ18O. Publisher PDF more...
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- 2019
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39. Micron-scale δ13C determination by NanoSIMS in a Juina diamond with a carbonate inclusion
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Daniele L. Pinti, Hélène Bureau, Pierre Cartigny, Naoto Takahata, Yuji Sano, and Akizumi Ishida
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010504 meteorology & atmospheric sciences ,Geochemistry ,Mineralogy ,Diamond ,engineering.material ,010502 geochemistry & geophysics ,01 natural sciences ,chemistry.chemical_compound ,Geophysics ,chemistry ,Geochemistry and Petrology ,Micron scale ,engineering ,Carbonate ,Inclusion (mineral) ,Geology ,0105 earth and related environmental sciences - Published
- 2016
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40. Author Correction: Constraining the rise of oxygen with oxygen isotopes
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Pierre Cartigny, Pierre Sansjofre, Bryan A. Killingsworth, Stefan V. Lalonde, Pascal Philippot, and Christophe Thomazo
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Multidisciplinary ,chemistry ,Science ,Radiochemistry ,General Physics and Astronomy ,chemistry.chemical_element ,lcsh:Q ,General Chemistry ,lcsh:Science ,Oxygen ,General Biochemistry, Genetics and Molecular Biology ,Isotopes of oxygen - Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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- 2020
41. Quantitative and specific recovery of natural organic and mineral sulfur for (multi-)isotope analysis
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Pierre Cartigny, Laurent Simon, Ingrid Antheaume, V. Grossi, Pierre Adam, F. Gelin, Magali Ader, I. Jovovic, Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de Strasbourg, Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Centre National de la Recherche Scientifique (CNRS), Centre scientifique et Technique Jean Feger (CSTJF), TOTAL FINA ELF, Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement [Lyon] (LGL-TPE), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Institut de Physique du Globe de Paris (IPGP), and Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP) more...
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010504 meteorology & atmospheric sciences ,chemistry.chemical_element ,Source rocks ,010502 geochemistry & geophysics ,Mass spectrometry ,01 natural sciences ,chemistry.chemical_compound ,[CHIM.ANAL]Chemical Sciences/Analytical chemistry ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,Geochemistry and Petrology ,Kerogen ,Wet oxidation ,Inductively coupled plasma mass spectrometry ,Organic and mineral sulfur ,Chemical oxidation of organic sulfur ,0105 earth and related environmental sciences ,Isotope analysis ,S biogeochemical cycle ,Chemistry ,Stable isotope ratio ,Sulfur ,Sulfur (multi-)isotopes ,13. Climate action ,Environmental chemistry ,[SDE]Environmental Sciences ,Wet chemistry - Abstract
International audience; Deciphering the role of sulfur in biogeochemical cycles strongly relies on its stable isotope composition, which ultimately depends on the ability to quantitatively recover different sulfur species from geological samples. For decades most studies have been restricted to the 34S/32S composition of bulk samples, using simple methods based on the analysis of SO2 released by sample combustion combined to mass spectrometry. The wet chemistry procedures required to selectively extract specific sulfur species were generally avoided due to their tediousness and inefficiency for some complex matrices, especially when targeting organic sulfur. With the recent advent of multi-isotope studies (investigating the minor sulfur stable isotopes 33S and 36S) which rely either on the analysis of sulfur as SF6, or on the use of secondary ion or multi-collector inductively coupled plasma mass spectrometry, wet chemistry-based preparation procedures were brought back to the stage with a renewed interest in developing procedures better adapted to the investigation of specific sulfur species. Here we propose a new stepwise chemical procedure for the quantitative recovery and multi-isotope analysis of organic sulfur from both solvent soluble (total lipid extract) and insoluble (kerogen) fractions, based on a wet oxidation by sodium hypochlorite. This procedure also allows the multi-isotope analysis of inorganic sulfur species (elemental sulfur, sulfates and sulfides) in the same sample. Its application to different well-known petroleum source rocks and to an oil demonstrates its relevance for disentangling the interactions between the different sulfur pools and for shedding new light on the sulfur biogeochemical cycle. more...
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- 2020
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42. Microdiamonds from UHP metamorphic rocks of the Kokchetav Massif, northern Kazakhstan: FTIR spectroscopy, C & N isotopes and morphology
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K. De Corte, Nikolay V. Sobolev, Marc Javoy, Vladislav S. Shatsky, P. De Paepe, and Pierre Cartigny
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geography ,geography.geographical_feature_category ,Morphology (linguistics) ,Isotope ,Metamorphic rock ,Geochemistry ,Massif ,Fourier transform infrared spectroscopy ,Geology - Published
- 2019
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43. Diamonds and the Mantle Geodynamics of Carbon
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Shirey, Steven B., Smit, Karen V., Graham Pearson, D., Walter, Michael J., Sonja Aulbach, Brenker, Frank E., Hélène Bureau, Burnham, Antony D., Pierre Cartigny, Thomas Chacko, Frost, Daniel J., Hauri, Erik H., Jacob, Dorrit E., Jacobsen, Steven D., Kohn, Simon C., Luth, Robert W., Sami Mikhail, Oded Navon, Fabrizio Nestola, Paolo Nimis, Mederic Palot, Smith, Evan M., Thomas Stachel, Vincenzo Stagno, Andrew Steele, Stern, Richard A., Emilie Thomassot, Thomson, Andrew R., Yaakov Weiss, Carnegie Institution for Science [Washington], University of Alberta, Goethe-Universität Frankfurt am Main, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Australian National University (ANU), Institut de Physique du Globe de Paris (IPGP), Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Université Paris Diderot - Paris 7 (UPD7)-IPG PARIS-Institut national des sciences de l'Univers (INSU - CNRS), Universität Bayreuth, Macquarie University, Northwestern University [Evanston], University of Bristol [Bristol], University of St Andrews [Scotland], The Hebrew University of Jerusalem (HUJ), Universita degli Studi di Padova, Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Centre de Recherches Pétrographiques et Géochimiques (CRPG), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), University College of London [London] (UCL), Beth N. Orcutt, Isabelle Daniel, Rajdeep Dasgupta, Carnegie Institution for Science, Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Padova = University of Padua (Unipd), and Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA) more...
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[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry - Abstract
International audience; The science of studying diamond inclusions for understanding Earth history has developed significantly over the past decades, with new instrumentation and techniques applied to diamond sample archives revealing the stories contained within diamond inclusions. This chapter reviews what diamonds can tell us about the deep carbon cycle over the course of Earth’s history. It reviews how the geochemistry of diamonds and their inclusions inform us about the deep carbon cycle, the origin of the diamonds in Earth’s mantle, and the evolution of diamonds through time. more...
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- 2019
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44. A New Method for Organic and Mineral Sulfur Multi-Isotope Analysis of Sediments and Petroleum Source Rocks
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Ingrid Antheaume, F. Gelin, Pierre Cartigny, Pierre Adam, Vincent Grossi, Magali Ader, I. Jovovic, Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de Strasbourg, Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Total, Total E&P, Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement [Lyon] (LGL-TPE), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS) more...
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Mineral ,Source rock ,chemistry ,[SDE]Environmental Sciences ,Geochemistry ,[CHIM]Chemical Sciences ,chemistry.chemical_element ,Sulfur ,ComputingMilieux_MISCELLANEOUS ,Geology ,Isotope analysis - Abstract
International audience
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- 2019
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45. Seasonality in the Δ33S measured in urban aerosols highlights an additional oxidation pathway for atmospheric SO2
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David Au Yang, Pierre Cartigny, Karine Desboeufs, and David Wîdory
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010405 organic chemistry ,13. Climate action ,11. Sustainability ,010402 general chemistry ,01 natural sciences ,0104 chemical sciences - Abstract
Sulfates present in urban aerosols collected worldwide usually exhibit significant non-zero Δ33S signatures (from −0.6 to 0.5 ‰) whose origin still remains unclear. To better address this issue, we recorded the seasonal variations of the multiple sulfur isotope compositions of PM10 aerosols collected over the year 2013 at five stations within the Montreal Island (Canada), each characterized by distinct types and levels of pollution. The δ34S-values (n = 155) vary from 2.0 to 11.3 ‰ (± 0.2 ‰, 2σ), the Δ33S-values from −0.080 to 0.341 ‰ (± 0.01 ‰, 2σ) and the Δ36S-values from −1.082 to 1.751 ‰ (± 0.2 ‰, 2σ). Our study evidences a seasonality for both the δ34S and Δ33S, which can be observed either when considering all monitoring stations or, to a lesser degree, when considering them individually. Among them, the monitoring station located at the most western end of the island, upstream of local emissions, yields the lowest mean δ34S coupled to the highest mean Δ33S-values. The Δ33S-values are higher during both summer and winter, and are more...
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- 2018
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46. Supplementary material to 'Seasonality in the Δ33S measured in urban aerosols highlights an additional oxidation pathway for atmospheric SO2'
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David Au Yang, Pierre Cartigny, Karine Desboeufs, and David Wîdory
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- 2018
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47. Globally asynchronous sulphur isotope signals require re-definition of the Great Oxidation Event
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Ernesto Pecoits, Elodie Muller, Christophe Thomazo, Bryan A. Killingsworth, Pierre Cartigny, Vincent Busigny, Franck Baton, Tom Caquineau, Janaína N. Ávila, Martin J. Van Kranendonk, Trevor Ireland, Pascal Philippot, Svetlana G. Tessalina, Stefan V. Lalonde, Institut de Physique du Globe de Paris (IPGP), Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Université Paris Diderot - Paris 7 (UPD7)-IPG PARIS-Institut national des sciences de l'Univers (INSU - CNRS), Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Université des Antilles (UA)-Centre National de la Recherche Scientifique (CNRS), Research School of Earth Sciences [Canberra] (RSES), Australian National University (ANU), Domaines Océaniques (LDO), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS), John de Laeter Centre for Isotope Research, Curtin University [Perth], Planning and Transport Research Centre (PATREC)-Planning and Transport Research Centre (PATREC), Biogéosciences [UMR 6282] [Dijon] (BGS), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), School of Biological, Earth and Environmental Sciences [Sydney] (BEES), University of New South Wales [Sydney] (UNSW), Work supported by grants from the Programme National de Planétologie and the São Paulo Research Foundation (FAPESP, grant 2015/16235-2), from the European Union Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 708117, and from ARC DP140103393., ANR-11-IDEX-0005,USPC,Université Sorbonne Paris Cité(2011), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), and ANR-11-IDEX-0005-02/10-LABX-0023,UnivEarthS,Earth - Planets - Universe: observation, modeling, transfer(2011) more...
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Multidisciplinary ,010504 meteorology & atmospheric sciences ,Atmospheric oxygen ,Science ,Earth science ,Great Oxygenation Event ,General Physics and Astronomy ,Sulfur cycle ,Weathering ,General Chemistry ,010502 geochemistry & geophysics ,Sulphur isotope ,01 natural sciences ,General Biochemistry, Genetics and Molecular Biology ,Article ,Diagenesis ,13. Climate action ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,Geochronology ,lcsh:Q ,Sedimentary rock ,lcsh:Science ,Geology ,0105 earth and related environmental sciences - Abstract
The Great Oxidation Event (GOE) has been defined as the time interval when sufficient atmospheric oxygen accumulated to prevent the generation and preservation of mass-independent fractionation of sulphur isotopes (MIF-S) in sedimentary rocks. Existing correlations suggest that the GOE was rapid and globally synchronous. Here we apply sulphur isotope analysis of diagenetic sulphides combined with U-Pb and Re-Os geochronology to document the sulphur cycle evolution in Western Australia spanning the GOE. Our data indicate that, from ~2.45 Gyr to beyond 2.31 Gyr, MIF-S was preserved in sulphides punctuated by several episodes of MIF-S disappearance. These results establish the MIF-S record as asynchronous between South Africa, North America and Australia, argue for regional-scale modulation of MIF-S memory effects due to oxidative weathering after the onset of the GOE, and suggest that the current paradigm of placing the GOE at 2.33–2.32 Ga based on the last occurrence of MIF-S in South Africa should be re-evaluated., The Great Oxidation Event (GOE) is considered to have occurred at 2.33–2.32 Ga based on the last occurrence of MIF-S in South Africa. Here, based on sulphur isotope analysis of samples from Western Australia, the authors show preservation of MIF-S beyond 2.31 Ga and call for a re-evaluation of GOE timing. more...
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- 2018
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48. A simple and reliable method reducing sulfate to sulfide for multiple sulfur isotope analysis
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Lei, Geng, Joel, Savarino, Clara A, Savarino, Nicolas, Caillon, Pierre, Cartigny, Shohei, Hattori, Sakiko, Ishino, Naohiro, Yoshida, South Dakota State University (SDSTATE), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut des Géosciences de l’Environnement (IGE), Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut Pierre-Simon-Laplace (IPSL), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Géochimie des Isotopes Stables, Université Paris Diderot - Paris 7 (UPD7), School of Materials and Chemical Technology, Tokyo Institute of Technology, 226‐8502 Yokohama, Japan, Cardiff University, Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Earth-Life Science Institute [Tokyo] (ELSI), Tokyo Institute of Technology [Tokyo] (TITECH), Marie Sklodowska Curie Action, Grant/Award Number: 700853 -PH‐SAKURA program of the French Embassy in Japan, Grant/Award Number: 31897 PM, CNRS/INSU, Grant/Award Number: 207394, Japan–France Research Cooperative Program, JSPS KAKENHI, Grant/Award Numbers: 17 J08978, 16H05884 and 17H06105, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK, Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Université Paris Diderot - Paris 7 (UPD7)-IPG PARIS-Institut national des sciences de l'Univers (INSU - CNRS), École normale supérieure - Paris (ENS-PSL), Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de glaciologie et géophysique de l'environnement (LGGE), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), and Earth‐Life Science Institute, Tokyo Institute of Technology, 152‐8551 Tokyo, Japan more...
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere ,[SDU]Sciences of the Universe [physics] ,[CHIM.ANAL]Chemical Sciences/Analytical chemistry ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Research Articles ,Research Article - Abstract
International audience; Rationale: Precise analysis of four sulfur isotopes of sulfate in geological and environmental samples provides the means to extract unique information in wide geological contexts. Reduction of sulfate to sulfide is the first step to access such information. The conventional reduction method suffers from a cumbersome distillation system, long reaction time and large volume of the reducing solution. We present a new and simple method enabling the process of multiple samples at one time with a much reduced volume of reducing solution. Methods: One mL of reducing solution made of HI and NaH 2 PO 2 was added to a septum glass tube with dry sulfate. The tube was heated at 124°C and the produced H 2 S was purged with inert gas (He or N 2) through gas-washing tubes and then collected by NaOH solution. The collected H 2 S was converted into Ag 2 S by adding AgNO 3 solution and the co-precipitated Ag 2 O was removed by adding a few drops of concentrated HNO 3. Results: Within 2-3 h, a 100% yield was observed for samples with 0.2-2.5 μmol Na 2 SO 4. The reduction rate was much slower for BaSO 4 and a complete reduction was not observed. International sulfur reference materials, NBS-127, SO-5 and SO-6, were processed with this method, and the measured against accepted δ 34 S values yielded a linear regression line which had a slope of 0.99 ± 0.01 and a R 2 value of 0.998. Conclusions: The new methodology is easy to handle and allows us to process multiple samples at a time. It has also demonstrated good reproducibility in terms of H 2 S yield and for further isotope analysis. It is thus a good alternative to the conventional manual method, especially when processing samples with limited amount of sulfate available.-This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. more...
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- 2018
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49. The growth of lithospheric diamonds
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Hélène, Bureau, Laurent, Remusat, Imène, Esteve, Daniele L, Pinti, and Pierre, Cartigny
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body regions ,congenital, hereditary, and neonatal diseases and abnormalities ,hemic and lymphatic diseases ,parasitic diseases ,SciAdv r-articles ,Geology ,Research Articles ,Research Article - Abstract
The different habits of lithospheric diamonds are formed from the same fluids, from redox reactions at isotopic equilibrium., Natural diamonds contain mineral and fluid inclusions that record diamond growth conditions. Replicating the growth of inclusion-bearing diamonds in a laboratory is therefore a novel diagnostic tool to constrain the conditions of diamond formation in Earth’s lithosphere. By determining the carbon isotopic fractionation during diamond growth in fluids or melts, our laboratory experiments revealed that lithospheric monocrystalline and fibrous and coated diamonds grow similarly from redox reactions at isotopic equilibrium in water and carbonate-rich fluids or melts, and not from native carbon. These new results explain why most of the lithospheric diamonds are characterized by a common carbon isotopic fingerprint, inherited from their common parent fluids and not from the mantle assemblage. more...
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- 2018
50. A comprehensive study of noble gases and nitrogen in 'Hypatia', a diamond-rich pebble from SW Egypt
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Rainer Wieler, Bernard Marty, Jan Kramers, Pierre Cartigny, Falko Langenhorst, Matthias M. M. Meier, Colin Maden, Guillaume Avice, Marco A.G. Andreoli, Laurent Zimmermann, Centre de Recherches Pétrographiques et Géochimiques (CRPG), Université de Lorraine (UL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Department of Earth Sciences [Swiss Federal Institute of Technology - ETH Zürich] (D-ERDW), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Department of Geology [University of Johannesburg], Department of Geology, University of Johannesburg, Institut für Geowissenschaften, Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany], Institut de Physique du Globe de Paris (IPGP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Centre D'Etude et de Recherche Interdisciplinaire de l'UFR LAC (CERILAC (EA_4410)), Université Paris Diderot - Paris 7 (UPD7), University of the Witwatersrand [Johannesburg] (WITS), European Project: 267255,EC:FP7:ERC,ERC-2010-AdG_20100224,NOGAT(2011), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Department of Earth Sciences [ETH Zürich] (D-ERDW), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich), Friedrich-Schiller-Universität Jena, School of Geosciences, and Institute for Human Evolution, University of the Witwatersrand, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) more...
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Earth and Planetary Astrophysics (astro-ph.EP) ,Radiogenic nuclide ,Meteoroid ,chemistry.chemical_element ,Lonsdaleite ,Mineralogy ,FOS: Physical sciences ,Libyan desert glass ,Strewn field ,Geophysics ,Meteorite ,chemistry ,13. Climate action ,Space and Planetary Science ,Geochemistry and Petrology ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,Earth and Planetary Sciences (miscellaneous) ,Carbon ,Geology ,Earth (classical element) ,Astrophysics - Earth and Planetary Astrophysics - Abstract
International audience; This is a follow-up study of a work by Kramers et al. (2013) on a very unusual diamond-rich rock fragment found in the area of south west Egypt in the south-western side of the Libyan Desert Glass strewn field. This pebble, called Hypatia, is composed of almost pure carbon. Transmission Electron Microscopy (TEM) and X-ray diffraction (XRD) results reveal that Hypatia is mainly made of defect-rich diamond containing lonsdaleite and multipledeformation bands. These characteristics are compatible with an impact origin on Earth and/or in space. We also analyzed concentrations and isotopic compositions of all five noble gases and nitrogen in several ~mg sized Hypatia samples. These data confirm the conclusion by Kramers et al. (2013) that Hypatia is extra-terrestrial. The sample is relatively rich in trapped noble gases with an isotopic composition being close to the Q component found in many types of meteorites. 40Ar/36Ar ratios in individual steps are as low as 0.4 ± 0.3. Cosmicray produced "cosmogenic" 21Ne is present in concentrations corresponding to a nominal cosmic-ray exposure (CRE) age of roughly 0.1 Myr if produced in a typical meter-sized meteoroid. Such an atypically low nominal CRE age suggests high shielding in a considerably larger body. In addition to the Xe-Q composition, an excess of radiogenic 129Xe (from thedecay of short-lived radioactive 129I) is observed (129Xe/132Xe = 1.18 +/- 0.03). Two isotopically distinct N components are present, an isotopically heavy component (δ15N ~ +20‰) released at low temperatures and a major isotopically light component (δ15N ~ -10‰) at higher temperatures. This disequilibrium in N suggests that the diamonds in Hypatia were formed in space rather than upon impact on Earth (δ15Natm = 0 ‰). All our dataare broadly consistent with concentrations and isotopic compositions of noble gases in at least three different types of carbon-rich meteoritic materials: carbon-rich veins in ureilites, graphite in acapulcoites/lodranites and graphite nodules in iron meteorites. However, Hypatia does not seem to be directly related to any of these materials, but may have sampled a similar cosmochemical reservoir. Our study does not confirm the presence of exotic noble gases (e.g. G component) that led Kramers et al. (2013) to propose that Hypatia is a remnant of a comet nucleus that impacted the Earth. more...
- Published
- 2015
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