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3. Research is needed to inform environmental management of hydrothermally inactive and extinct polymetallic sulfide (PMS) deposits

Author

Van Dover, C.L., Colaço, A., Collins, P.C., Croot, P., Metaxas, A., Murton, B.J., Swaddling, A., Boschen-Rose, R.E., Carlsson, J., Cuyvers, L., Fukushima, T., Gartman, A., Kennedy, R., Kriete, C., Mestre, N.C., Molodtsova, T., Myhrvold, A., Pelleter, E., Popoola, S.O., Qian, P.-Y., Sarrazin, J., Sharma, R., Suh, Y.J., Sylvan, J.B., Tao, C., Tomczak, M., and Vermilye, J.

Published
2020
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14. Living (stained) deep-sea foraminifera from the Sea of Marmara: A preliminary study

Author

Fontanier, C., primary, Dissard, D., additional, Ruffine, L., additional, Mamo, B., additional, Ponzevera, E., additional, Pelleter, E., additional, Baudin, F., additional, Roubi, A., additional, Chéron, S., additional, Boissier, A., additional, Gayet, N., additional, Bermell-Fleury, S., additional, Pitel, M., additional, Guyader, V., additional, Lesongeur, F., additional, and Savignac, F., additional

Published
2018
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16. U/Pb ages of magmatism in the Zgounder epithermal Ag-Hg deposit, Sirwa window, Anti-Atlas, Morocco

Author

Pelleter, E., Cheilletz, Alain, Gasquet, Dominique, Mouttaqi, A, Annich, M, Camus, Q., Deloule, E., ouazzani, l, Bounajma, Hassan, Ouchtouban, L., 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), Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), 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), Compagnie minière de Touissit (CMT), Bouabdellah M., Slack J., and Referent HAL Edytem, Christine Maury

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.MCG] Environmental Sciences/Global Changes, [SDE.IE]Environmental Sciences/Environmental Engineering, [SHS.GEO] Humanities and Social Sciences/Geography, [SDE.MCG]Environmental Sciences/Global Changes, [SDE.IE] Environmental Sciences/Environmental Engineering, [SDE.ES] Environmental Sciences/Environmental and Society, [SHS.GEO]Humanities and Social Sciences/Geography, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, [SDE.ES]Environmental Sciences/Environmental and Society, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2016

17. Multi Scales Exploration Strategy - Example of Research For Hydrothermal Mineralization in the French EEZ of Wallis and Futuna

Author

Fouquet, Y., additional, Scalabrin, C., additional, Alix, A.S., additional, Donval, J.P., additional, Dupré, S., additional, Guérin, C., additional, Guillou, M., additional, Guyader, V., additional, Konn, C., additional, Patriat, M., additional, Pelleter, E., additional, Pierre, D., additional, Rosazza, F., additional, Saint-Laurent, X., additional, Dyment, J., additional, and Szitcar, Florent, additional

Published
2015
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18. Hydrothermal zircons : A tool for ion microprobe U–Pb dating of precious metals mineralization in polyphased deposits

Author

Pelleter, E., Cheilletz, Alain, Gasquet, Dominique, Mouttaqi, Abdellah, Camus, Q., Annich, Mohammed, El Hakour, Abdelkhalek, Ouazzani, L., Deloule, E., Féraud, G., 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), 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), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Géoazur (GEOAZUR 6526), Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), and Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (... - 2019) (UNS)

Subjects
[SDE.MCG]Environmental Sciences/Global Changes, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

19. The Tamlalt-Menhouhou gold deposit (eastern High-Atlas, Morocco) : a model of a polyphased deposit in a polymetallic area

Author

Pelleter, E., Cheilletz, Alain, Gasquet, Dominique, Mouttaqi, Abdellah, Annich, Mohammed, El Hakour, Abdelkhalek, Deloule, E., Féraud, G., Kyser, K., Chipley, D., Macfarnale, B., 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), Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Géoazur (GEOAZUR 6526), Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Department of Geological Sciences and Geological Engineering, Queen's University [Kingston, Canada], 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), and Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)

Subjects
[SDE.MCG]Environmental Sciences/Global Changes, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

20. Miocene to Late Quaternary Patagonian basalts (46-47 degrees S): Geochronometric and geochemical evidence for slab tearing due to active spreading ridge subduction

Author

Guivel, C., Morata, D., Pelleter, E., Espinoza, F., Maury, R.C., Lagabrielle, Y., Polvé, Mireille, Bellon, H., Cotten, J., Benoit, M., Suarez, M., de la Cruz, R., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
alkali basalts, ridge subduction, Domaines océaniques, plateau basalts, Patagonia, slab window, slab tear
Abstract

Miocene to Quaternary large basaltic plateaus occur in the back-arc domain of the Andean chain in Patagonia. They are thought to result from the ascent of subslab asthenospheric magmas through slab windows generated from subducted segments of the South Chile Ridge (SCR). We have investigated three volcanic centres from the Lago General Carrera-Buenos Aires area (46-47 degrees S) located above the inferred position of the slab window corresponding to a segment subducted 6 Ma ago. (1) The Quaternary Rio Murta transitional basalts display major, trace elements, and Sr and Nd isotopic features similar to those of oceanic basalts from the SCR and from the Chile Triple Junction near Taitao Peninsula (e.g., (Sr-87/Sr-86)(o)=0.70396-0.70346 and epsilon Nd=+5.5-+3.0). We consider them as derived from the melting of a Chile Ridge asthenospheric mantle source containing a weak subduction component. (2) The Plio-Quaternary (< 3.3 Ma) post-plateau basanites from Meseta del Lago Buenos Aires (MLBA), Argentina, likely derive from small degrees of melting of OIB-type mantle sources involving the subslab asthenosphere and the enriched subcontinental lithospheric mantle. (3) The main plateau basaltic volcanism in this region is represented by the 12.4-3.3-Ma-old MLBA basalts and the 8.2-4.4-Ma-old basalts from Meseta Chile Chico (MCC), Chile. Two groups can be distinguished among these main plateau basalts. The first group includes alkali basalts and trachybasalts displaying typical OIB signatures and thought to derive from predominantly asthenospheric mantle sources similar to those of the post-plateau MLBA basalts, but through slightly larger degrees of melting. The second one, although still dominantly alkalic, displays incompatible element signatures intermediate between those of OIB and arc magmas (e.g., La/Nb > 1 and TiO2< 2 wt.%). These intermediate basalts differ from their strictly alkalic equivalents by having lower High Field Strength Element (HFSE) and higher epsilon Nd (up to +5.4). These features are consistent with their derivation from an enriched mantle source contaminated by ca. 10% rutile-bearing restite of altered oceanic crust. The petrogenesis of the studied Mio-Pliocene basalts from MLBA and MCC is consistent with contributions of the subslab asthenosphere, the South American subcontinental lithospheric mantle and the subducted Pacific oceanic crust to their sources. However, their chronology of emplacement is not consistent with an ascent through an asthenospheric window opened as a consequence of the subduction of segment SCR-1, which entered the trench at 6 Ma. Indeed. magmatic activity was already important between 12 and 8 Ma in MLBA and MCC as well as in southernmost plateaus, i.e., 6 Ma before the subduction of the SCR-1 segment. We propose a geodynamic model in which 0113 and intermediate magmas derived from deep subslab asthenospheric mantle did uprise through a tear-in-the-slab, which formed when the southernmost segments of the SCR collided with the Chile Trench around 15 Ma. During their ascent, they interacted with the Patagonian supraslab mantle and, locally, with slivers of subducted Pacific oceanic crust that contributed to the geochemical signature of the intermediate basafts. (c) 2005 Elsevier B.V. All rights reserved.

Published
2006

21. Geochronology and geochemistry of the Miocene to Recent Patagonian basalts (46-47°S) : Evidences for slab tearing due to active spreading ridge subduction

Author

Guivel, C., Morata, D., Pelleter, E., Espinoza, F., Rc., Maury, Lagabrielle, Y., Polvé, M., Bellon, H., Cotten, Joseph, Benoit, M., Suarez, M., La Cruz R., De, Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

23. Petrogenesis of the Eocene and Moi-Pliocene alkaline basaltic magmatism in Meseta Chile chico, southern Patagonia, Chile : evidence of two slab window processes ?

Author

Espinoza, F., Morata, D., Pelleter, E., Maury, René, Guivel, C., Suarez, M., Lagabrielle, Y., Polvé, M., Bellon, H., Cotten, Joseph, La Cruz R., De, Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Domaines océaniques, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

24. Asthenospheric-lithospheric interactions in Mio-Pliocene back-arc extensional magmatism in Patagonia : tracing the window-slab geochemistry signature

Author

Morata, D., Rc., Maury, Espinoza, F., Polvé, M., Pelleter, E., Guivel, C., Lagabrielle, Y., Suarez, M., La Cruz R., De, Bellon, H., Cotton, J., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMethodologies_GENERAL
Abstract

Poster

Published
2004

26. Trace element determinations in Fe-Mn oxides by high resolution ICP-MS after Tm addition.

Author

Charles C, Barrat JA, and Pelleter E

Subjects
Iron, Manganese, Mass Spectrometry, Oxides, Thulium, Trace Elements analysis
Abstract

In order to propose an optimal analytical procedure specific to ferromanganese (Fe-Mn) oxides, we investigated different modes of data acquisition using inductively coupled plasma mass spectrometry (ICP-MS). The results of trace element and Rare Earth Element (REE) determination in eight Fe-Mn nodules and crusts (FeMn-1, GSMC-1, GSMC-2, GSMC-3, GSPN-2, GSPN-3, NOD-A-1 and NOD-P-1) are presented here. The analytical procedure involves chemical dissolution of the Fe-Mn oxides and addition of a thulium (Tm) spike. The correction of measured values from potential isobaric interferences was investigated using both corrections based on mono-elemental solutions, and data acquisition in the high-resolution mode. The obtained results show that the high-resolution acquisition mode is unnecessary to achieve high quality data for REE in Fe-Mn oxides. Using our revised method, we provide a consistent set of precise and accurate values for eight widely used but poorly characterized certified reference materials., (Copyright © 2021 The Author(s). Published by Elsevier B.V. All rights reserved.)

Published
2021
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27. The dark side of soft tissues: Unexpected inorganic carbonate in the invasive slipper limpet Crepidula fornicata and its implications for stable isotope interpretations.

Author

Androuin T, Dubois SF, Decottignies P, Pelleter E, and Carlier A

Subjects
Animals, Body Size, Diet, Female, Gastropoda anatomy & histology, Hydrochloric Acid chemistry, Male, Seasons, Seaweed, Carbon Isotopes analysis, Carbonates analysis, Gastropoda chemistry, Nitrogen Isotopes analysis
Abstract

Rationale: Stable isotopic analysis is extensively used in trophic ecology. Inorganic carbonates, usually originating from shell fragments, are routinely removed from samples using an acid treatment because they affect δ 13 C values. However, acid treatment can also change δ 15 N values. For some taxa such as molluscs, the general assumption is that acid pre-treatment is not necessary since their shell is easily dissected from soft tissues and represents the only source of inorganic carbonates. However, other sources of non-dietary carbon (e.g., intracellular inorganic carbon) enriched in 13 C thus get overlooked., Methods: Soft tissues (foot) of the invasive gastropod Crepidula fornicata of different size classes were analysed for their δ 13 C and δ 15 N values with and without acid pre-treatment using isotope ratio mass spectrometry. In toto microscopic investigations coupled with acid treatment, scanning electron microscopy and energy-dispersive spectroscopy were used to highlight the presence of inorganic carbonate. A correction model was derived and applied to existing stable isotope data for C. fornicata. We used both seasonal variations in δ 13 C signatures and mixing model outputs to assess the error in δ 13 C values., Results: Acid pre-treatment had a significant effect on the stable isotope compositions of C. fornicata foot tissue, especially on δ 13 C values: isotopic differences increased with size, up to 3‰ for large females. No effect was detected for small (below ~20 mm) and motile males. In toto microscopic analysis revealed the presence of small spherules of inorganic carbonate, hence explaining the differences in δ 13 C values. Mixing model outputs and seasonal variation of δ 13 C values showed that untreated samples can lead to large misinterpretations about diet proportions and degree of trophic niche overlap, respectively., Conclusions: Spherules of inorganic carbonate in C. fornicata soft tissues are likely to be linked with the motility of this species and their mucus production. We recommend assessing the presence of inorganic carbonate in soft tissue of sessile gastropods., (© 2018 John Wiley & Sons, Ltd.)

Published
2019
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