98 results on '"Poitrasson, F."'
Search Results
2. First-principles calculation of iron and silicon isotope fractionation between Fe-bearing minerals at magmatic temperatures: The importance of second atomic neighbors
- Author
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Rabin, S., Blanchard, M., Pinilla, C., Poitrasson, F., and Gregoire, M.
- Published
- 2021
- Full Text
- View/download PDF
3. Nickel isotope fractionation during metal-silicate differentiation of planetesimals: Experimental petrology and ab initio calculations
- Author
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Guignard, J., Quitté, G., Méheut, M., Toplis, M.J., Poitrasson, F., Connetable, D., and Roskosz, M.
- Published
- 2020
- Full Text
- View/download PDF
4. Trace elements and isotope geochemistry (C, O, Fe, Cr) of the Cauê iron formation, Quadrilátero Ferrífero, Brazil: Evidence for widespread microbial dissimilatory iron reduction at the Archean/Paleoproterozoic transition
- Author
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Teixeira, N.L., Caxito, F.A., Rosière, C.A., Pecoits, E., Vieira, L., Frei, R., Sial, A.N., and Poitrasson, F.
- Published
- 2017
- Full Text
- View/download PDF
5. Iron isotope fingerprints of redox and biogeochemical cycling in the soil-water-rice plant system of a paddy field
- Author
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Garnier, J., Garnier, J-M., Vieira, C.L., Akerman, A., Chmeleff, J., Ruiz, R.I., and Poitrasson, F.
- Published
- 2017
- Full Text
- View/download PDF
6. Isotope constraints on the involvement of fluids in the San Andreas Fault System, California
- Author
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Pili, E., Kennedy, B.M., Conrad, S.M., Gratier, J.-P., and Poitrasson, F.
- Subjects
Geosciences - Published
- 1998
7. The ChemCam Instrument Suite on the Mars Science Laboratory (MSL) Rover: Science Objectives and Mast Unit Description
- Author
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Maurice, S., Wiens, R. C., Saccoccio, M., Barraclough, B., Gasnault, O., Forni, O., Mangold, N., Baratoux, D., Bender, S., Berger, G., Bernardin, J., Berthé, M., Bridges, N., Blaney, D., Bouyé, M., Caïs, P., Clark, B., Clegg, S., Cousin, A., Cremers, D., Cros, A., DeFlores, L., Derycke, C., Dingler, B., Dromart, G., Dubois, B., Dupieux, M., Durand, E., d’Uston, L., Fabre, C., Faure, B., Gaboriaud, A., Gharsa, T., Herkenhoff, K., Kan, E., Kirkland, L., Kouach, D., Lacour, J.-L., Langevin, Y., Lasue, J., Le Mouélic, S., Lescure, M., Lewin, E., Limonadi, D., Manhès, G., Mauchien, P., McKay, C., Meslin, P.-Y., Michel, Y., Miller, E., Newsom, H. E., Orttner, G., Paillet, A., Parès, L., Parot, Y., Pérez, R., Pinet, P., Poitrasson, F., Quertier, B., Sallé, B., Sotin, C., Sautter, V., Séran, H., Simmonds, J. J., Sirven, J.-B., Stiglich, R., Striebig, N., Thocaven, J.-J., Toplis, M. J., and Vaniman, D.
- Published
- 2012
- Full Text
- View/download PDF
8. The ChemCam Instrument Suite on the Mars Science Laboratory (MSL) Rover: Science Objectives and Mast Unit Description
- Author
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Maurice, S., primary, Wiens, R. C., additional, Saccoccio, M., additional, Barraclough, B., additional, Gasnault, O., additional, Forni, O., additional, Mangold, N., additional, Baratoux, D., additional, Bender, S., additional, Berger, G., additional, Bernardin, J., additional, Berthé, M., additional, Bridges, N., additional, Blaney, D., additional, Bouyé, M., additional, Caïs, P., additional, Clark, B., additional, Clegg, S., additional, Cousin, A., additional, Cremers, D., additional, Cros, A., additional, DeFlores, L., additional, Derycke, C., additional, Dingler, B., additional, Dromart, G., additional, Dubois, B., additional, Dupieux, M., additional, Durand, E., additional, d’Uston, L., additional, Fabre, C., additional, Faure, B., additional, Gaboriaud, A., additional, Gharsa, T., additional, Herkenhoff, K., additional, Kan, E., additional, Kirkland, L., additional, Kouach, D., additional, Lacour, J.-L., additional, Langevin, Y., additional, Lasue, J., additional, Le Mouélic, S., additional, Lescure, M., additional, Lewin, E., additional, Limonadi, D., additional, Manhès, G., additional, Mauchien, P., additional, McKay, C., additional, Meslin, P.-Y., additional, Michel, Y., additional, Miller, E., additional, Newsom, H. E., additional, Orttner, G., additional, Paillet, A., additional, Parès, L., additional, Parot, Y., additional, Pérez, R., additional, Pinet, P., additional, Poitrasson, F., additional, Quertier, B., additional, Sallé, B., additional, Sotin, C., additional, Sautter, V., additional, Séran, H., additional, Simmonds, J. J., additional, Sirven, J.-B., additional, Stiglich, R., additional, Striebig, N., additional, Thocaven, J.-J., additional, Toplis, M. J., additional, and Vaniman, D., additional
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- 2012
- Full Text
- View/download PDF
9. Stable Zn isotopes reveal the uptake and toxicity of zinc oxide engineered nanomaterials in Phragmites australis
- Author
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Caldelas, C, primary, Poitrasson, F, additional, Viers, J, additional, and Araus, JL, additional
- Published
- 2020
- Full Text
- View/download PDF
10. Stable Zn isotopes reveal the uptake and toxicity of zinc oxide engineered nanomaterials inPhragmites australis
- Author
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Caldelas, C., primary, Poitrasson, F., additional, Viers, J., additional, and Araus, J. L., additional
- Published
- 2020
- Full Text
- View/download PDF
11. Les isotopes du fer pour le traçage des métaux anciens comparaison avec les méthodes de traçage classiques
- Author
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Milot, Jean, Poitrasson, F., Baron, Sandrine, Coustures, Marie-Pierre, 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), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Société Française des IsotopeS, SFIS, and Ministère de la Culture et de la Communication (MCC)-École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,[SDE.ES]Environmental Sciences/Environmental and Society ,ComputingMilieux_MISCELLANEOUS ,[SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy - Abstract
International audience
- Published
- 2017
12. Iron isotopes for ancient iron metal tracing: comparison with trace elements analyses
- Author
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Milot, Jean, Baron, Sandrine, Poitrasson, F., Coustures, Marie-Pierre, 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), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), and École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,[SDE.ES]Environmental Sciences/Environmental and Society ,ComputingMilieux_MISCELLANEOUS ,[SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy - Abstract
International audience
- Published
- 2017
13. Stable Zn isotopes reveal the uptake and toxicity of zinc oxide engineered nanomaterials in Phragmites australis.
- Author
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Caldelas, C., Poitrasson, F., Viers, J., and Araus, J. L.
- Published
- 2020
- Full Text
- View/download PDF
14. Iron isotopes as a new tool for ancient metal tracing: comparison with classical tracing methods
- Author
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Milot, Jean, Poitrasson, F., Baron, Sandrine, 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), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), and Ministère de la Culture et de la Communication (MCC)-École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,[SDE.ES]Environmental Sciences/Environmental and Society ,ComputingMilieux_MISCELLANEOUS ,[SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy - Abstract
International audience
- Published
- 2016
15. Iron isotope composition of mid-ocean ridge basalts and mantle peridotites
- Author
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Williams, H, Lee, DC, Levasseur, S, Teutsch, N, Poitrasson, F, Rehkamper, M, and Halliday, AN
- Published
- 2016
16. Iron isotopes analysis for ancient metal tracing: application to the study of iron making in the Bassar region (Togo)
- Author
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Jean Milot, Poitrasson, F., Sandrine Baron, Marie-Pierre Coustures, Robion-Brunner Caroline, 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), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), and ANR-13-JSH3-0002,SIDERENT,SIDERurgie et ENvironnement au Togo : Stratégie d'exploitation des ressources naturelles dans le cadre d'une production du fer ancienne et intensive (région bassar, Togo)(2013)
- Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2016
17. Ancient metals tracing by iron isotopes analysis
- Author
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Jean Milot, Poitrasson, F., Sandrine Baron, Marie-Pierre Coustures, Robion-Brunner Caroline, 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), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), and ANR-13-JSH3-0002,SIDERENT,SIDERurgie et ENvironnement au Togo : Stratégie d'exploitation des ressources naturelles dans le cadre d'une production du fer ancienne et intensive (région bassar, Togo)(2013)
- Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2016
18. Iron isotopes as a new tool for ancient metal tracing : comparaison with classical tracing methods
- Author
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Jean Milot, Poitrasson, F., Sandrine Baron, Marie-Pierre Coustures, Robion-Brunner Caroline, 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), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), and ANR-13-JSH3-0002,SIDERENT,SIDERurgie et ENvironnement au Togo : Stratégie d'exploitation des ressources naturelles dans le cadre d'une production du fer ancienne et intensive (région bassar, Togo)(2013)
- Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2015
19. Les isotopes du fer, un nouvel outil pour le traçage des métaux anciens. Société Française des IsotopeS
- Author
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Jean Milot, Poitrasson, F., Sandrine Baron, Robion-Brunner Caroline, Marie-Pierre Coustures, 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), 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), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), and ANR-13-JSH3-0002,SIDERENT,SIDERurgie et ENvironnement au Togo : Stratégie d'exploitation des ressources naturelles dans le cadre d'une production du fer ancienne et intensive (région bassar, Togo)(2013)
- Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2015
20. Trace elements and isotope geochemistry (C, O, Fe, Cr) of the Cauê iron formation, Quadrilátero Ferrífero, Brazil:Evidence for widespread microbial dissimilatory iron reduction at the Archean/Paleoproterozoic transition
- Author
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Teixeira, N.L., Caxito, F.A., Rosière, C.A., Pecoits, E., Vieira, L., Frei, Robert, Sial, A.N., Poitrasson, F., Teixeira, N.L., Caxito, F.A., Rosière, C.A., Pecoits, E., Vieira, L., Frei, Robert, Sial, A.N., and Poitrasson, F.
- Published
- 2017
21. Insights into iron sources and pathways in the Amazon River provided by isotopic and spectroscopic studies
- Author
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Mulholland, D. S., Poitrasson, F., Boaventura, G. R., Allard, T., Vieira, L. C., Santos, R. V., Mancini, L., and Seyler, Patrick
- Abstract
The present study investigated the weathering and transport mechanisms of Fe in the Amazon River. A particular emphasis was placed on Fe partitioning, speciation, and isotopic fractionation in the contrasting waters of the Solimoes and Negro rivers and their mixing zone at the beginning of the Amazon River. Samples collected in the end-member rivers and thirteen sites distributed throughout the mixing zone were processed through frontal vacuum filtration and tangential-flow ultrafiltration to separate the different suspended solid fractions, i.e., particulate (P > 0.45 mu m and P > 0.22 mu m), colloidal (0.22 mu m > C > 5 kDa) and truly dissolved elements (TD < 5 kDa). The Fe isotopic composition and electron paramagnetic resonance (EPR) species were measured on these different pore-sized fractions. The acidic and organo-Fe-rich waters of the Negro River displayed dissolved and colloidal fractions enriched in heavy isotopes (similar to 1.2 parts per thousand, in delta Fe-57 values relative to IRMM-14), while the particulate fractions yielded light isotopic compositions of -0.344 parts per thousand for P > 0.22 mu m and -0.104 parts per thousand for P > 0.45 mu m fractions). The mineral particulate-rich waters of the Solimoes River had dissolved and colloidal fractions with light isotopic composition (-0.532 parts per thousand and -0.176 parts per thousand, respectively), whereas the particulate fractions yielded delta Fe-57 values close to those of the continental crust (i.e., -0.029 parts per thousand for P > 0.22 mu m and 0.028 parts per thousand for P > 0.45 mu m). Ten kilometers downstream from the Negro and Solimoes junction, the concentrations of colloidal and dissolved Fe species deviate markedly from conservative mixing. A maximum Fe loss of 43 mu g/L (i.e., 50% of the dissolved and colloidal Fe) is observed 110 km downstream from the rivers junction. The contrasting Negro and Solimoes Rivers isotopic compositions along the pore-sized water fractions is attributable to the biogeochemical processes involving different types of upland soils and parental materials. For instance, the isotopic composition of colloidal and dissolved Fe from the Negro River are consistent with Fe oxidation and complexation mechanisms at the interface between waterlogged podzols and river networks, as supported by strong organo-Fe complexes signals observed by EPR. Conversely, the particulate and colloidal fractions from the Solimoes River have delta Fe-57 consistent with strong mechanical erosion in the Andean Cordillera and upland soils, as evidenced by high concentrations of Fe3+-oxides sensu lato measured by EPR. The massive dissolved and colloidal Fe removal is associated with the evolution of the physical and chemical composition of the waters (i.e., ionic strength) during mixing, which influences organo-Fe3+ and Fe3+-oxyhydroxides stability. Several models are discussed to explain Fe non-conservative behavior, including dissociation of organo-Fe complexes and the subsequent formation of solid Fe3+-oxyhydroxides and semiquinone free radicals, as evidenced by EPR spectra demonstrating that organo-Fe signals decrease as Fe3+-oxyhydroxides and free radicals signals increase. As in estuarine regions, the mechanisms involving Fe transfer and loss in the mixing zone has a negligible effect on the bulk water Fe isotopic composition. This result suggests that a tropical basin similar to the Amazon River Basin delivers to the ocean waters with an Fe isotopic composition similar to that of the Earth's continental crust.
- Published
- 2015
22. The isotopic fingerprint of Fe cycling in an equatorial soil-plant-water system : The Nsimi watershed, South Cameroon
- Author
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Akerman, A., Poitrasson, F., Oliva, P., Audry, S., Prunier, J., and Braun, Jean-Jacques
- Subjects
Vegetation ,Chemical weathering ,Lateritic regolith ,Iron isotopes ,Swamp zone soil ,Stream water - Abstract
Following an initial study of a tropical lateritic hillside system showing little iron isotope fractionation despite a strong accumulation within the soil profile, the present work investigates iron isotope signatures within the organic matter rich swamp system that represents 20% of the studied watershed surface (from Nsimi, South Cameroon). This study considers the soil-plant-water continuum in order to better understand the Fe elemental and isotopic transfer out of the ecosystem. Within the swamp system, the iron isotope compositions of gleysol samples (delta Fe-57(IRMM-14) similar to+ 0.6 parts per thousand) are significantly heavier than both the continental crust baseline and the reference lateritic soils from the hillslope (delta Fe-57(IRMM-14) = + 0.1 parts per thousand). This enrichment towards heavy isotopes is attributed to a preferential removal of light iron isotopes during soil forming processes. Pedogenic transformations (i.e., gleyzation, organic complexation of metal and leaching) are responsible for the reductimorphic features observed in ferralitic horizons (i.e., incomplete degradation of organic matter in surface and soil whitening favored by good draining conditions). The organic carbon-rich waters of the swamp system are prone to redox processes and strong metal chelation. The dissolved iron (i.e., fraction < 0.22 mu m) of the Mengong stream shows positive delta Fe-57 signatures, with a down-stream enrichment in heavy isotopes, from + 0.511 +/- 0.266 parts per thousand to + 1.076 +/- 0.240 parts per thousand. The binding of iron (Fe-III) with organic matter can explain the observed enrichment in heavy isotopes in the dissolved fraction. On the contrary, plant leaves are significantly enriched in light Fe (delta Fe-57 of -0.665 +/- 0.035 and -1.119 +/- 0.080 parts per thousand) relative to (i) the litter compartment (-0.166 +/- 0.078 to -0.262 +/- 0.013% for delta Fe-57) and (ii) the most superficial soils. Iron isotopic compositions in plants and litter vary as a function of both plant species and season. Hence, the differences in Fe isotopic compositions between the various studied compartments suggest that Fe isotopes can be used (i) to study elemental transfers during soil pedogenesis in tropical environment and (ii) to better appraise and constrain iron biogeochemical cycle between surface horizon of soils, surface waters and the vegetation.
- Published
- 2014
23. Iron isotope composition of the bulk waters and sediments from the Amazon River Basin
- Author
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Poitrasson, F., Vieira, L. C., Seyler, Patrick, Pinheiro, G. M. D., Mulholland, D. S., Bonnet, Marie-Paule, Martinez, Jean-Michel, Lima, B. A., Boaventura, G. R., Chmeleff, J., Dantas, E. L., Guyot, Jean-Loup, Mancini, L., Pimentel, M. M., Santos, R. V., Sondag, Francis, and Vauchel, Philippe
- Subjects
Amazon River ,Iron isotopes ,Fe biogeochemical cycling ,Freshwater and continental sediments - Abstract
The present study provides iron concentrations and isotopic compositions determined by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS), along with key chemical, mineralogical and physical properties of 35 representative bulk (unfiltered) waters and bulk sediments from the Amazon River Basin. These samples from the Amazon River, five of its main tributaries (the Solimoes, Negro, Madeira, Tapajos and Trombetas rivers) and four sub-tributaries (the Purus, Jau, Ucayali and Napo rivers) were essentially collected during seven field missions conducted for over two years. These encompassed the centennial flood of May 2009 and the exceptional low water stage of September-October 2010, thereby providing the most extreme hydrological situations that have been recorded over the last hundred years. While the data confirmed massive losses of iron (up to similar to 19000 tons/day, ca. 50% of the Amazon River bulk water budget) in the Solimoes and Negro rivers mixing zone, the Fe isotope signatures of these bulk waters behaved conservatively. This property allows the use of bulk water Fe isotope signature to track iron sources and explain such isotopic signature in terms of simple mixing. Unfiltered samples from the organic-rich black water rivers present light delta Fe-57 relative to the average continental crust composition. This contrasts with the composition of the bulk white waters carrying a high mineral suspended load that have delta Fe-57 values undistinguishable from the crustal isotopic signature (similar to 0.1 parts per thousand relative to IRMM-14). This observation indicates that the Fe isotopic composition represents a reliable direct tracer of the iron speciation and, therefore, of the host phases of iron in its sources. Specifically, the white water d57Fe most likely trace the signatures of igneous and sedimentary sources, as well as of their lateritic soil minerals, while the bulk black water d57Fe track a preferential release of Fe that has gone through a reduction step in the organic-rich horizons of tropical podzols as a result of the biological activity. This study shows that the total iron transferred by the Amazon River represents between 5 and 30% of the world's ocean Fe input by rivers, and this Amazon bulk water iron displays an isotopic composition indistinguishable from that of the average continental crust.
- Published
- 2014
24. Contrasting iron isotopic compositions in river suspended particulate matter : the Negro and the Amazon annual river cycles
- Author
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Pinheiro, G. M. D., Poitrasson, F., Sondag, Francis, Cochonneau, Gérard, and Vieira, L. C.
- Subjects
water dissolved matter ,water suspended particulate matter ,annual river cycle ,iron isotopes ,Amazon and Negro equatorial rivers ,temporal series - Abstract
Iron isotopic compositions (delta Fe-56(IRMM-14)) of suspended particulate matter (SPM) from two major rivers in the Amazon Basin, the Amazon River itself (at the Obidos Station) and the Negro River (at the Serrinha Station), were investigated in the present study. The main objective was to search for temporal variations during their annual river cycles. delta Fe-56(IRMM-14) values for the Amazon River at Obidos range between 0.00 and +0.15 parts per thousand, indistinguishable from the average continental crust value. In contrast, the iron isotopic compositions of the Negro River (Serrinha Station) SPM vary between -0.34 and -0.82 parts per thousand, whereas the dissolved matter is isotopically heavier in this river. The lack of significant isotopic variations in the Amazon River indicates that one individual SPM subsurface sample is representative of the river during the whole annual river cycle, in opposition to results obtained for the Negro River. The data suggest that in organic-poor white water rivers, such as the Amazon, iron isotopic signatures of the suspended fraction reflect a detrital crustal component with little isotopic fractionation. On the other hand, in the organic-rich Negro River, which has tropical podzols as the main iron source, the iron redox cycling at the water-soil interface influences the iron isotopic composition.
- Published
- 2014
25. Martian fluvial conglomerates at gale crater
- Author
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Williams, R. M. E., Grotzinger, J. P., Dietrich, W. E., Gupta, S., Sumner, D. Y., Wiens, R. C., Mangold, N., Malin, M. C., Edgett, K. S., Maurice, S., Forni, O., Gasnault, O., Ollila, A., Newsom, H. E., Dromart, G., Palucis, M. C., Yingst, R. A., Anderson, R. B., Herkenhoff, K. E., Le Mouelic, S., Goetz, W., Madsen, M. B., Koefoed, A., Jensen, J. K., Bridges, J. C., Schwenzer, S. P., Lewis, K. W., Stack, K. M., Rubin, D., Kah, L. C., Bell, J. F., Farmer, J. D., Sullivan, R., Van Beek, T., Blaney, D. L., Pariser, O., Deen, R. G., Kemppinen, O., Bridges, N., Johnson, J. R., Minitti, M., Cremers, D., Edgar, L., Godber, A., Wadhwa, M., Wellington, D., McEwan, I., Newman, C., Richardson, M., Charpentier, A., Peret, L., King, P., Blank, J., Weigle, G., Schmidt, M., Li, S., Milliken, R., Robertson, K., Sun, V., Baker, M., Edwards, C., Ehlmann, B., Farley, K., Griffes, J., Miller, H., Newcombe, M., Pilorget, C., Rice, M., Siebach, K., Stolper, E., Brunet, C., Hipkin, V., Leveille, R., Marchand, G., Sobron Sanchez, P., Favot, L., Cody, G., Steele, A., Fluckiger, L., Lees, D., Nefian, A., Martin, M., Gailhanou, M., Westall, F., Israel, G., Agard, C., Baroukh, J., Donny, C., Gaboriaud, A., Guillemot, P., Lafaille, V., Lorigny, E., Paillet, A., Perez, R., Saccoccio, M., Yana, C., Aparicio, C. A., Caride Rodriguez, J., Carrasco Blazquez, I., Gomez Gomez, F., Elvira, J. G., Hettrich, S., Lepinette Malvitte, A., Marin Jimenez, M., Frias, J. M., Soler, J. M., Torres, F. J. M., Molina Jurado, A., Sotomayor, L. M., Munoz Caro, G., Navarro Lopez, S., Gonzalez, V. P., Garcia, J. P., Rodriguez Manfredi, J. A., Planello, J. J. R., Alejandra Sans Fuentes, S., Sebastian Martinez, E., Torres Redondo, J., O'Callaghan, R. U., Zorzano Mier, M.-P., Chipera, S., Lacour, J.-L., Mauchien, P., Sirven, J.-B., Manning, H., Fairen, A., Hayes, A., Joseph, J., Squyres, S., Thomas, P., Dupont, A., Lundberg, A., Melikechi, N., Mezzacappa, A., DeMarines, J., Grinspoon, D., Reitz, G., Prats, B., Atlaskin, E., Genzer, M., Harri, A.-M., Haukka, H., Kahanpaa, H., Kauhanen, J., Paton, M., Polkko, J., Schmidt, W., Siili, T., Fabre, C., Wray, J., Wilhelm, M. B., Poitrasson, F., Patel, K., Gorevan, S., Indyk, S., Paulsen, G., Bish, D., Schieber, J., Gondet, B., Langevin, Y., Geffroy, C., Baratoux, D., Berger, G., Cros, A., Uston, C. d., Lasue, J., Lee, Q.-M., Meslin, P.-Y., Pallier, E., Parot, Y., Pinet, P., Schroder, S., Toplis, M., Lewin, E., Brunner, W., Heydari, E., Achilles, C., Oehler, D., Sutter, B., Cabane, M., Coscia, D., Szopa, C., Robert, F., Sautter, V., Nachon, M., Buch, A., Stalport, F., Coll, P., Francois, P., Raulin, F., Teinturier, S., Cameron, J., Clegg, S., Cousin, A., DeLapp, D., Dingler, R., Jackson, R. S., Johnstone, S., Lanza, N., Little, C., Nelson, T., Williams, R. B., Jones, A., Kirkland, L., Treiman, A., Baker, B., Cantor, B., Caplinger, M., Davis, S., Duston, B., Fay, D., Hardgrove, C., Harker, D., Herrera, P., Jensen, E., Kennedy, M. R., Krezoski, G., Krysak, D., Lipkaman, L., McCartney, E., McNair, S., Nixon, B., Posiolova, L., Ravine, M., Salamon, A., Saper, L., Stoiber, K., Supulver, K., Van Beek, J., Zimdar, R., French, K. L., Iagnemma, K., Miller, K., Summons, R., Goesmann, F., Hviid, S., Johnson, M., Lefavor, M., Lyness, E., Breves, E., Dyar, M. D., Fassett, C., Blake, D. F., Bristow, T., DesMarais, D., Edwards, L., Haberle, R., Hoehler, T., Hollingsworth, J., Kahre, M., Keely, L., McKay, C., Bleacher, L., Brinckerhoff, W., Choi, D., Conrad, P., Dworkin, J. P., Eigenbrode, J., Floyd, M., Freissinet, C., Garvin, J., Glavin, D., Harpold, D., Mahaffy, P., Martin, D. K., McAdam, A., Pavlov, A., Raaen, E., Smith, M. D., Stern, J., Tan, F., Trainer, M., Meyer, M., Posner, A., Voytek, M., Anderson, R. C., Aubrey, A., Beegle, L. W., Behar, A., Brinza, D., Calef, F., Christensen, L., Crisp, J. A., DeFlores, L., Feldman, J., Feldman, S., Flesch, G., Hurowitz, J., Jun, I., Keymeulen, D., Maki, J., Mischna, M., Morookian, J. M., Parker, T., Pavri, B., Schoppers, M., Sengstacken, A., Simmonds, J. J., Spanovich, N., de la Torre Juarez, M., Vasavada, A. R., Webster, C. R., Yen, A., Archer, P. D., Cucinotta, F., Jones, J. H., Ming, D., Morris, R. V., Niles, P., Rampe, E., Nolan, T., Fisk, M., Radziemski, L., Barraclough, B., Bender, S., Berman, D., Dobrea, E. N., Tokar, R., Vaniman, D., Leshin, L., Cleghorn, T., Huntress, W., Manhes, G., Hudgins, J., Olson, T., Stewart, N., Sarrazin, P., Grant, J., Vicenzi, E., Wilson, S. A., Bullock, M., Ehresmann, B., Hamilton, V., Hassler, D., Peterson, J., Rafkin, S., Zeitlin, C., Fedosov, F., Golovin, D., Karpushkina, N., Kozyrev, A., Litvak, M., Malakhov, A., Mitrofanov, I., Mokrousov, M., Nikiforov, S., Prokhorov, V., Sanin, A., Tretyakov, V., Varenikov, A., Vostrukhin, A., Kuzmin, R., Clark, B., Wolff, M., McLennan, S., Botta, O., Drake, D., Bean, K., Lemmon, M., Lee, E. M., Sucharski, R., Hernandez, M. A. d. P., Blanco Avalos, J. J., Ramos, M., Kim, M.-H., Malespin, C., Plante, I., Muller, J.-P., Gonzalez, R. N., Ewing, R., Boynton, W., Downs, R., Fitzgibbon, M., Harshman, K., Morrison, S., Kortmann, O., Williams, A., Lugmair, G., Wilson, M. A., Jakosky, B., Zunic, T. B., Frydenvang, J., Kinch, K., Stipp, S. L. S., Boyd, N., Campbell, J. L., Gellert, R., Perrett, G., Pradler, I., VanBommel, S., Jacob, S., Owen, T., Rowland, S., Savijarvi, H., Boehm, E., Bottcher, S., Burmeister, S., Guo, J., Kohler, J., Garcia, C. M., Mellin, R. M., Schweingruber, R. W., McConnochie, T., Benna, M., Franz, H., Bower, H., Brunner, A., Blau, H., Boucher, T., Carmosino, M., Atreya, S., Elliott, H., Halleaux, D., Renno, N., Wong, M., Pepin, R., Elliott, B., Spray, J., Thompson, L., Gordon, S., Williams, J., Vasconcelos, P., Bentz, J., Nealson, K., Popa, R., Moersch, J., Tate, C., Day, M., Kocurek, G., Hallet, B., Sletten, R., Francis, R., McCullough, E., Cloutis, E., ten Kate, I. L., Arvidson, R., Fraeman, A., Scholes, D., Slavney, S., Stein, T., Ward, J., Berger, J., Moores, J. E., NWO-NSO: The role of perchlorates in the preservation of organic compounds on Mars, Petrology, GeoRessources, and 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)
- Subjects
MSL Mars Gale Crater Fluvial Activity ,Martian ,Multidisciplinary ,010504 meteorology & atmospheric sciences ,Outcrop ,Curiosity rover ,Geochemistry ,Mars ,Sediment ,Fluvial ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Mars Exploration Program ,01 natural sciences ,Abrasion (geology) ,martian fluvial conglomerates ,13. Climate action ,Rocknest ,0103 physical sciences ,MSL ,Sedimentary rock ,010303 astronomy & astrophysics ,Geology ,0105 earth and related environmental sciences - Abstract
Going to Mars The Mars Science Laboratory spacecraft containing the Curiosity rover, was launched from Earth in November 2011 and arrived at Gale crater on Mars in August 2012. Zeitlin et al. (p. 1080 ) report measurements of the energetic particle radiation environment inside the spacecraft during its cruise to Mars, confirming the hazard likely to be posed by this radiation to astronauts on a future potential trip to Mars. Williams et al. (p. 1068 , see the Perspective by Jerolmack ) report the detection of sedimentary conglomerates (pebbles mixed with sand and turned to rock) at Gale crater. The rounding of the rocks suggests abrasion of the pebbles as they were transported by flowing water several kilometers or more from their source.
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- 2013
- Full Text
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26. Abundance and isotopic composition of gases in the martian atmosphere from the Curiosity rover
- Author
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Mahaffy, P. R., Webster, C. R., Atreya, S. K., Franz, H., Wong, M., Conrad, P. G., Harpold, D., Jones, J. J., Leshin, L. A., Manning, H., Owen, T., Pepin, R. O., Squyres, S., Trainer, M., Kemppinen, O., Bridges, N., Johnson, J. R., Minitti, M., Cremers, D., Bell, J. F., Edgar, L., Farmer, J., Godber, A., Wadhwa, M., Wellington, D., McEwan, I., Newman, C., Richardson, M., Charpentier, A., Peret, L., King, P., Blank, J., Weigle, G., Schmidt, M., Li, S., Milliken, R., Robertson, K., Sun, V., Baker, M., Edwards, C., Ehlmann, B., Farley, K., Griffes, J., Grotzinger, J., Miller, H., Newcombe, M., Pilorget, C., Rice, M., Siebach, K., Stack, K., Stolper, E., Brunet, C., Hipkin, V., Leveille, R., Marchand, G., Sanchez, P. S., Favot, L., Cody, G., Steele, A., Fluckiger, L., Lees, D., Nefian, A., Martin, M., Gailhanou, M., Westall, F., Israel, G., Agard, C., Baroukh, J., Donny, C., Gaboriaud, A., Guillemot, P., Lafaille, V., Lorigny, E., Paillet, A., Perez, R., Saccoccio, M., Yana, C., Armiens-Aparicio, C., Rodriguez, J. C., Blazquez, I. C., Gomez, F. G., Gomez-Elvira, J., Hettrich, S., Malvitte, A. L., Jimenez, M. M., Martinez-Frias, J., Martin-Soler, J., Martin-Torres, F. J., Jurado, A. M., Mora-Sotomayor, L., Caro, G. M., Lopez, S. N., Peinado-Gonzalez, V., Pla-Garcia, J., Manfredi, J. A. R., Romeral-Planello, J. J., Fuentes, S. A. S., Martinez, E. S., Redondo, J. T., Urqui-O'Callaghan, R., Mier, M.-P. Z., Chipera, S., Lacour, J.-L., Mauchien, P., Sirven, J.-B., Fairen, A., Hayes, A., Joseph, J., Sullivan, R., Thomas, P., Dupont, A., Lundberg, A., Melikechi, N., Mezzacappa, A., DeMarines, J., Grinspoon, D., Reitz, G., Prats, B., Atlaskin, E., Genzer, M., Harri, A.-M., Haukka, H., Kahanpaa, H., Kauhanen, J., Paton, M., Polkko, J., Schmidt, W., Siili, T., Fabre, C., Wray, J., Wilhelm, M. B., Poitrasson, F., Patel, K., Gorevan, S., Indyk, S., Paulsen, G., Gupta, S., Bish, D., Schieber, J., Gondet, B., Langevin, Y., Geffroy, C., Baratoux, D., Berger, G., Cros, A., d'Uston, C., Forni, O., Gasnault, O., Lasue, J., Lee, Q.-M., Maurice, S., Meslin, P.-Y., Pallier, E., Parot, Y., Pinet, P., Schroder, S., Toplis, M., Lewin, E., Brunner, W., Heydari, E., Achilles, C., Oehler, D., Sutter, B., Cabane, M., Coscia, D., Szopa, C., Dromart, G., Robert, F., Sautter, V., Le Mouelic, S., Mangold, N., Nachon, M., Buch, A., Stalport, F., Coll, P., Francois, P., Raulin, F., Teinturier, S., Cameron, J., Clegg, S., Cousin, A., DeLapp, D., Dingler, R., Jackson, R. S., Johnstone, S., Lanza, N., Little, C., Nelson, T., Wiens, R. C., Williams, R. B., Jones, A., Kirkland, L., Treiman, A., Baker, B., Cantor, B., Caplinger, M., Davis, S., Duston, B., Edgett, K., Fay, D., Hardgrove, C., Harker, D., Herrera, P., Jensen, E., Kennedy, M. R., Krezoski, G., Krysak, D., Lipkaman, L., Malin, M., McCartney, E., McNair, S., Nixon, B., Posiolova, L., Ravine, M., Salamon, A., Saper, L., Stoiber, K., Supulver, K., Van Beek, J., Van Beek, T., Zimdar, R., French, K. L., Iagnemma, K., Miller, K., Summons, R., Goesmann, F., Goetz, W., Hviid, S., Johnson, M., Lefavor, M., Lyness, E., Breves, E., Dyar, M. D., Fassett, C., Blake, D. F., Bristow, T., DesMarais, D., Edwards, L., Haberle, R., Hoehler, T., Hollingsworth, J., Kahre, M., Keely, L., McKay, C., Bleacher, L., Brinckerhoff, W., Choi, D., Dworkin, J. P., Eigenbrode, J., Floyd, M., Freissinet, C., Garvin, J., Glavin, D., Martin, D. K., McAdam, A., Pavlov, A., Raaen, E., Smith, M. D., Stern, J., Tan, F., Meyer, M., Posner, A., Voytek, M., Anderson, R. C., Aubrey, A., Beegle, L. W., Behar, A., Blaney, D., Brinza, D., Calef, F., Christensen, L., Crisp, J. A., DeFlores, L., Feldman, J., Feldman, S., Flesch, G., Hurowitz, J., Jun, I., Keymeulen, D., Maki, J., Mischna, M., Morookian, J. M., Parker, T., Pavri, B., Schoppers, M., Sengstacken, A., Simmonds, J. J., Spanovich, N., Juarez, M. d. l. T., Vasavada, A. R., Yen, A., Archer, P. D., Cucinotta, F., Ming, D., Morris, R. V., Niles, P., Rampe, E., Nolan, T., Fisk, M., Radziemski, L., Barraclough, B., Bender, S., Berman, D., Dobrea, E. N., Tokar, R., Vaniman, D., Williams, R. M. E., Yingst, A., Lewis, K., Cleghorn, T., Huntress, W., Manhes, G., Hudgins, J., Olson, T., Stewart, N., Sarrazin, P., Grant, J., Vicenzi, E., Wilson, S. A., Bullock, M., Ehresmann, B., Hamilton, V., Hassler, D., Peterson, J., Rafkin, S., Zeitlin, C., Fedosov, F., Golovin, D., Karpushkina, N., Kozyrev, A., Litvak, M., Malakhov, A., Mitrofanov, I., Mokrousov, M., Nikiforov, S., Prokhorov, V., Sanin, A., Tretyakov, V., Varenikov, A., Vostrukhin, A., Kuzmin, R., Clark, B., Wolff, M., McLennan, S., Botta, O., Drake, D., Bean, K., Lemmon, M., Schwenzer, S. P., Anderson, R. B., Herkenhoff, K., Lee, E. M., Sucharski, R., Hernandez, M. A. d. P., Avalos, J. J. B., Ramos, M., Kim, M.-H., Malespin, C., Plante, I., Muller, J.-P., Navarro-Gonzalez, R., Ewing, R., Boynton, W., Downs, R., Fitzgibbon, M., Harshman, K., Morrison, S., Dietrich, W., Kortmann, O., Palucis, M., Sumner, D. Y., Williams, A., Lugmair, G., Wilson, M. A., Rubin, D., Jakosky, B., Balic-Zunic, T., Frydenvang, J., Jensen, J. K., Kinch, K., Koefoed, A., Madsen, M. B., Stipp, S. L. S., Boyd, N., Campbell, J. L., Gellert, R., Perrett, G., Pradler, I., VanBommel, S., Jacob, S., Rowland, S., Savijarvi, H., Boehm, E., Bottcher, S., Burmeister, S., Guo, J., Kohler, J., Garcia, C. M., Mueller-Mellin, R., Wimmer-Schweingruber, R., Bridges, J. C., McConnochie, T., Benna, M., Bower, H., Brunner, A., Blau, H., Boucher, T., Carmosino, M., Elliott, H., Halleaux, D., Renno, N., Elliott, B., Spray, J., Thompson, L., Gordon, S., Newsom, H., Ollila, A., Williams, J., Vasconcelos, P., Bentz, J., Nealson, K., Popa, R., Kah, L. C., Moersch, J., Tate, C., Day, M., Kocurek, G., Hallet, B., Sletten, R., Francis, R., McCullough, E., Cloutis, E., ten Kate, I. L., Arvidson, R., Fraeman, A., Scholes, D., Slavney, S., Stein, T., Ward, J., Berger, J., Moores, J. E., GeoRessources, 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), MSL Science Team, NWO-NSO: The role of perchlorates in the preservation of organic compounds on Mars, and Petrology
- Subjects
010504 meteorology & atmospheric sciences ,Curiosity rover ,chemistry.chemical_element ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Mars ,MSL Mars Atmosphere Isotopis Composition ,martian atmosphere ,01 natural sciences ,Astrobiology ,Isotopic signature ,chemistry.chemical_compound ,0103 physical sciences ,MSL ,010303 astronomy & astrophysics ,0105 earth and related environmental sciences ,Martian ,Multidisciplinary ,δ13C ,Atmosphere of Mars ,Nitrogen ,chemistry ,13. Climate action ,Sample Analysis at Mars ,Carbon dioxide ,Environmental science ,Carbon monoxide - Abstract
Mars' Atmosphere from Curiosity The Sample Analysis at Mars (SAM) instrument on the Curiosity rover that landed on Mars in August last year is designed to study the chemical and isotopic composition of the martian atmosphere. Mahaffy et al. (p. 263 ) present volume-mixing ratios of Mars' five major atmospheric constituents (CO 2 , Ar, N 2 , O 2 , and CO) and isotope measurements of 40 Ar/ 36 Ar and C and O in CO 2 , based on data from one of SAM's instruments, obtained between 31 August and 21 November 2012. Webster et al. (p. 260 ) used data from another of SAM's instruments obtained around the same period to determine isotope ratios of H, C, and O in atmospheric CO 2 and H 2 O. Agreement between the isotopic ratios measured by SAM with those of martian meteorites, measured in laboratories on Earth, confirms the origin of these meteorites and implies that the current atmospheric reservoirs of CO 2 and H 2 O were largely established after the period of early atmospheric loss some 4 billion years ago.
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- 2013
- Full Text
- View/download PDF
27. Curiosity at Gale Crater, Mars: Characterization and analysis of the rocknest sand shadow
- Author
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Blake, D. F., Morris, R. V., Kocurek, G., Morrison, S. M., Downs, R. T., Bish, D., Ming, D. W., Edgett, K. S., Rubin, D., Goetz, W., Madsen, M. B., Sullivan, R., Gellert, R., Campbell, I., Treiman, A. H., McLennan, S. M., Yen, A. S., Grotzinger, J., Vaniman, D. T., Chipera, S. J., Achilles, C. N., Rampe, E. B., Sumner, D., Meslin, P.- Y., Maurice, S., Forni, O., Gasnault, O., Fisk, M., Schmidt, M., Mahaffy, P., Leshin, L. A., Glavin, D., Steele, A., Freissinet, C., Navarro-Gonzalez, R., Yingst, R. A., Kah, L. C., Bridges, N., Lewis, K. W., Bristow, T. F., Farmer, J. D., Crisp, J. A., Stolper, E. M., Des Marais, D. J., Sarrazin, P., Agard, C., Alves Verdasca, J. A., Anderson, R., Archer, D., Armiens-Aparicio, C., Arvidson, R., Atlaskin, E., Atreya, S., Aubrey, A., Baker, B., Baker, M., Balic-Zunic, T., Baratoux, D., Baroukh, J., Barraclough, B., Bean, K., Beegle, L., Behar, A., Bell, J., Bender, S., Benna, M., Bentz, J., Berger, G., Berger, J., Berman, D., Blanco Avalos, J. J., Blaney, D., Blank, J., Blau, H., Bleacher, L., Boehm, E., Botta, O., Bottcher, S., Boucher, T., Bower, H., Boyd, N., Boynton, B., Breves, E., Bridges, J., Brinckerhoff, W., Brinza, D., Brunet, C., Brunner, A., Brunner, W., Buch, A., Bullock, M., Burmeister, S., Cabane, M., Calef, F., Cameron, J., Cantor, B., Caplinger, M., Rodriguez, J. C., Carmosino, M., Blazquez, I. C., Charpentier, A., Choi, D., Clark, B., Clegg, S., Cleghorn, T., Cloutis, E., Cody, G., Coll, P., Conrad, P., Coscia, D., Cousin, A., Cremers, D., Cros, A., Cucinotta, F., d'Uston, C., Davis, S., Day, M., Juarez, M. d. l. T., DeFlores, L., DeLapp, D., DeMarines, J., Dietrich, W., Dingler, R., Donny, C., Drake, D., Dromart, G., Dupont, A., Duston, B., Dworkin, J., Dyar, M. D., Edgar, L., Edwards, C., Edwards, L., Ehlmann, B., Ehresmann, B., Eigenbrode, J., Elliott, B., Elliott, H., Ewing, R., Fabre, C., Fairen, A., Farley, K., Fassett, C., Favot, L., Fay, D., Fedosov, F., Feldman, J., Feldman, S., Fitzgibbon, M., Flesch, G., Floyd, M., Fluckiger, L., Fraeman, A., Francis, R., Francois, P., Franz, H., French, K. L., Frydenvang, J., Gaboriaud, A., Gailhanou, M., Garvin, J., Geffroy, C., Genzer, M., Godber, A., Goesmann, F., Golovin, D., Gomez, F. G., Gomez-Elvira, J., Gondet, B., Gordon, S., Gorevan, S., Grant, J., Griffes, J., Grinspoon, D., Guillemot, P., Guo, J., Gupta, S., Guzewich, S., Haberle, R., Halleaux, D., Hallet, B., Hamilton, V., Hardgrove, C., Harker, D., Harpold, D., Harri, A.-M., Harshman, K., Hassler, D., Haukka, H., Hayes, A., Herkenhoff, K., Herrera, P., Hettrich, S., Heydari, E., Hipkin, V., Hoehler, T., Hollingsworth, J., Hudgins, J., Huntress, W., Hurowitz, J., Hviid, S., Iagnemma, K., Indyk, S., Israel, G., Jackson, R., Jacob, S., Jakosky, B., Jensen, E., Jensen, J. K., Johnson, J., Johnson, M., Johnstone, S., Jones, A., Jones, J., Joseph, J., Jun, I., Kahanpaa, H., Kahre, M., Karpushkina, N., Kasprzak, W., Kauhanen, J., Keely, L., Kemppinen, O., Keymeulen, D., Kim, M.-H., Kinch, K., King, P., Kirkland, L., Koefoed, A., Kohler, J., Kortmann, O., Kozyrev, A., Krezoski, J., Krysak, D., Kuzmin, R., Lacour, J. L., Lafaille, V., Langevin, Y., Lanza, N., Lasue, J., Le Mouelic, S., Lee, E. M., Lee, Q.-M., Lees, D., Lefavor, M., Lemmon, M., Lepinette Malvitte, A., Leveille, R., Lewin-Carpintier, E., Li, S., Lipkaman, L., Little, C., Litvak, M., Lorigny, E., Lugmair, G., Lundberg, A., Lyness, E., Maki, J., Malakhov, A., Malespin, C., Malin, M., Mangold, N., Manning, H., Marchand, G., Marin Jimenez, M., Martin Garcia, C., Martin, D., Martin, M., Martinez-Frias, J., Martin-Soler, J., Martin-Torres, F. J., Mauchien, P., McAdam, A., McCartney, E., McConnochie, T., McCullough, E., McEwan, I., McKay, C., McNair, S., Melikechi, N., Meyer, M., Mezzacappa, A., Miller, H., Miller, K., Milliken, R., Minitti, M., Mischna, M., Mitrofanov, I., Moersch, J., Mokrousov, M., Molina Jurado, A., Moores, J., Mora-Sotomayor, L., Morookian, J. M., Mueller-Mellin, R., Muller, J.-P., Munoz Caro, G., Nachon, M., Navarro Lopez, S., Nealson, K., Nefian, A., Nelson, T., Newcombe, M., Newman, C., Newsom, H., Nikiforov, S., Niles, P., Nixon, B., Dobrea, E. N., Nolan, T., Oehler, D., Ollila, A., Olson, T., Owen, T., Pablo, H., Paillet, A., Pallier, E., Palucis, M., Parker, T., Parot, Y., Patel, K., Paton, M., Paulsen, G., Pavlov, A., Pavri, B., Peinado-Gonzalez, V., Pepin, R., Peret, L., Perez, R., Perrett, G., Peterson, J., Pilorget, C., Pinet, P., Pla-Garcia, J., Plante, I., Poitrasson, F., Polkko, J., Popa, R., Posiolova, L., Pradler, I., Prats, B., Prokhorov, V., Purdy, S. W., Raaen, E., Radziemski, L., Rafkin, S., Ramos, M., Raulin, F., Ravine, M., Reitz, G., Renno, N., Rice, M., Richardson, M., Robert, F., Rodriguez Manfredi, J. A., Romeral-Planello, J. J., Rowland, S., Saccoccio, M., Salamon, A., Sandoval, J., Sanin, A., Sans Fuentes, S. A., Saper, L., Sautter, V., Savijarvi, H., Schieber, J., Schmidt, W., Scholes, D., Schoppers, M., Schroder, S., Sebastian Martinez, E., Sengstacken, A., Shterts, R., Siebach, K., Siili, T., Simmonds, J., Sirven, J.-B., Slavney, S., Sletten, R., Smith, M., Sobron Sanchez, P., Spanovich, N., Spray, J., Squyres, S., Stack, K., Stalport, F., Stein, T., Stern, J., Stewart, N., Stipp, S. L. S., Stoiber, K., Sucharski, B., Summons, R., Sun, V., Supulver, K., Sutter, B., Szopa, C., Tate, C., Teinturier, S., ten Kate, I. L., Thomas, P., Thompson, L., Tokar, R., Toplis, M., Torres Redondo, J., Trainer, M., Tretyakov, V., Urqui-O'Callaghan, R., Van Beek, J., Van Beek, T., VanBommel, S., Varenikov, A., Vasavada, A., Vasconcelos, P., Vicenzi, E., Vostrukhin, A., Voytek, M., Wadhwa, M., Ward, J., Webster, C., Weigle, E., Wellington, D., Westall, F., Wiens, R. C., Wilhelm, M. B., Williams, A., Williams, J., Williams, R., Williams, R. B., Wilson, M., Wimmer-Schweingruber, R., Wolff, M., Wong, M., Wray, J., Wu, M., Yana, C., Zeitlin, C., Zimdar, R., Zorzano Mier, M.-P., GeoRessources, 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), NASA Ames Research Center (ARC), NASA Johnson Space Center (JSC), NASA, Department of Geological Sciences [Austin], Jackson School of Geosciences (JSG), University of Texas at Austin [Austin]-University of Texas at Austin [Austin], Department of Geology [Tucson], University of Arizona, Department of Geological Sciences [Bloomington], Indiana University [Bloomington], Indiana University System-Indiana University System, Malin Space Science Systems (MSSS), NASA Goddard Space Flight Center (GSFC), NWO-NSO: The role of perchlorates in the preservation of organic compounds on Mars, and Petrology
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Basalt ,Meridiani Planum ,Multidisciplinary ,010504 meteorology & atmospheric sciences ,Curiosity rover ,Geochemistry ,Mars ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Mars Exploration Program ,Exploration of Mars ,01 natural sciences ,Astrobiology ,Impact crater ,13. Climate action ,MSL Mars Gale Crater Rocknest ,Rocknest ,0103 physical sciences ,Sample Analysis at Mars ,Aeolian processes ,MSL ,Rocknest aeolian deposit ,010303 astronomy & astrophysics ,Geology ,0105 earth and related environmental sciences - Abstract
The Rocknest aeolian deposit is similar to aeolian features analyzed by the Mars Exploration Rovers (MERs) Spirit and Opportunity. The fraction of sand
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28. The Petrochemistry of Jake_M: A Martian Mugearite
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Stolper, E. M., Baker, M. B., Newcombe, M. E., Schmidt, M. E., Treiman, A. H., Cousin, A., Dyar, M. D., Fisk, M. R., Gellert, R., King, P. L., Leshin, L., Maurice, S., McLennan, S. M., Minitti, M. E., Perrett, G., Rowland, S., Sautter, V., Wiens, R. C., Kemppinen, O., Bridges, N., Johnson, J. R., Cremers, D., Bell, J. F., Edgar, L., Farmer, J., Godber, A., Wadhwa, M., Wellington, D., McEwan, I., Newman, C., Richardson, M., Charpentier, A., Peret, L., Blank, J., Weigle, G., Li, S., Milliken, R., Robertson, K., Sun, V., Edwards, C., Ehlmann, B., Farley, K., Griffes, J., Grotzinger, J., Miller, H., Pilorget, C., Rice, M., Siebach, K., Stack, K., Brunet, C., Hipkin, V., Leveille, R., Marchand, G., Sanchez, P. S., Favot, L., Cody, G., Steele, A., Fluckiger, L., Lees, D., Nefian, A., Martin, M., Gailhanou, M., Westall, F., Israel, G., Agard, C., Baroukh, J., Donny, C., Gaboriaud, A., Guillemot, P., Lafaille, V., Lorigny, E., Paillet, A., Perez, R., Saccoccio, M., Yana, C., Armiens-Aparicio, C., Rodriguez, J. C., Blazquez, I. C., Gomez, F. G., Gomez-Elvira, J., Hettrich, S., Malvitte, A. L., Jimenez, M. M., Martinez-Frias, J., Martin-Soler, J., Martin-Torres, F. J., Jurado, A. M., Mora-Sotomayor, L., Caro, G. M., Lopez, S. N., Peinado-Gonzalez, V., Pla-Garcia, J., Manfredi, J. A. R., Romeral-Planello, J. J., Fuentes, S. A. S., Martinez, E. S., Redondo, J. T., Urqui-O'Callaghan, R., Mier, M.-P. Z., Chipera, S., Lacour, J.-L., Mauchien, P., Sirven, J.-B., Manning, H., Fairen, A., Hayes, A., Joseph, J., Squyres, S., Sullivan, R., Thomas, P., Dupont, A., Lundberg, A., Melikechi, N., Mezzacappa, A., DeMarines, J., Grinspoon, D., Reitz, G., Prats, B., Atlaskin, E., Genzer, M., Harri, A.-M., Haukka, H., Kahanpaa, H., Kauhanen, J., Paton, M., Polkko, J., Schmidt, W., Siili, T., Fabre, C., Wray, J., Wilhelm, M. B., Poitrasson, F., Patel, K., Gorevan, S., Indyk, S., Paulsen, G., Gupta, S., Bish, D., Schieber, J., Gondet, B., Langevin, Y., Geffroy, C., Baratoux, D., Berger, G., Cros, A., d'Uston, C., Forni, O., Gasnault, O., Lasue, J., Lee, Q.-M., Meslin, P.-Y., Pallier, E., Parot, Y., Pinet, P., Schroder, S., Toplis, M., Lewin, E., Brunner, W., Heydari, E., Achilles, C., Oehler, D., Sutter, B., Cabane, M., Coscia, D., Szopa, C., Teinturier, S., Dromart, G., Robert, F., Le Mouelic, S., Mangold, N., Nachon, M., Buch, A., Stalport, F., Coll, P., Francois, P., Raulin, F., Cameron, J., Clegg, S., DeLapp, D., Dingler, R., Jackson, R. S., Johnstone, S., Lanza, N., Little, C., Nelson, T., Williams, R. B., Kirkland, L., Baker, B., Cantor, B., Caplinger, M., Davis, S., Duston, B., Edgett, K., Fay, D., Hardgrove, C., Harker, D., Herrera, P., Jensen, E., Kennedy, M. R., Krezoski, G., Krysak, D., Lipkaman, L., Malin, M., McCartney, E., McNair, S., Nixon, B., Posiolova, L., Ravine, M., Salamon, A., Saper, L., Stoiber, K., Supulver, K., Van Beek, J., Van Beek, T., Zimdar, R., French, K. L., Iagnemma, K., Miller, K., Summons, R., Goesmann, F., Goetz, W., Hviid, S., Johnson, M., Lefavor, M., Lyness, E., Breves, E., Fassett, C., Blake, D. F., Bristow, T., DesMarais, D., Edwards, L., Haberle, R., Hoehler, T., Hollingsworth, J., Kahre, M., Keely, L., McKay, C., Bleacher, L., Brinckerhoff, W., Choi, D., Conrad, P., Dworkin, J. P., Eigenbrode, J., Floyd, M., Freissinet, C., Garvin, J., Glavin, D., Harpold, D., Mahaffy, P., Martin, D. K., McAdam, A., Pavlov, A., Raaen, E., Smith, M. D., Stern, J., Tan, F., Trainer, M., Meyer, M., Posner, A., Voytek, M., Anderson, R. C., Aubrey, A., Beegle, L. W., Behar, A., Blaney, D., Brinza, D., Calef, F., Christensen, L., Crisp, J., DeFlores, L., Feldman, J., Feldman, S., Flesch, G., Hurowitz, J., Jun, I., Keymeulen, D., Maki, J., Mischna, M., Morookian, J. M., Parker, T., Pavri, B., Schoppers, M., Sengstacken, A., Simmonds, J. J., Spanovich, N., Juarez, M. d. l. T., Vasavada, A., Webster, C. R., Yen, A., Archer, P. D., Cucinotta, F., Jones, J. H., Ming, D., Morris, R. V., Niles, P., Rampe, E., Nolan, T., Radziemski, L., Barraclough, B., Bender, S., Berman, D., Dobrea, E. N., Tokar, R., Vaniman, D., Williams, R. M. E., Yingst, A., Lewis, K., Cleghorn, T., Huntress, W., Manhes, G., Hudgins, J., Olson, T., Stewart, N., Sarrazin, P., Grant, J., Vicenzi, E., Wilson, S. A., Bullock, M., Ehresmann, B., Hamilton, V., Hassler, D., Peterson, J., Rafkin, S., Zeitlin, C., Fedosov, F., Golovin, D., Karpushkina, N., Kozyrev, A., Litvak, M., Malakhov, A., Mitrofanov, I., Mokrousov, M., Nikiforov, S., Prokhorov, V., Sanin, A., Tretyakov, V., Varenikov, A., Vostrukhin, A., Kuzmin, R., Clark, B., Wolff, M., Botta, O., Drake, D., Bean, K., Lemmon, M., Schwenzer, S. P., Anderson, R. B., Herkenhoff, K., Lee, E. M., Sucharski, R., Hernandez, M. A. d. P., Avalos, J. J. B., Ramos, M., Jones, A., Kim, M.-H., Malespin, C., Plante, I., Muller, J.-P., Navarro-Gonzalez, R., Ewing, R., Boynton, W., Downs, R., Fitzgibbon, M., Harshman, K., Morrison, S., Dietrich, W., Kortmann, O., Palucis, M., Sumner, D. Y., Williams, A., Lugmair, G., Wilson, M. A., Rubin, D., Jakosky, B., Balic-Zunic, T., Frydenvang, J., Jensen, J. K., Kinch, K., Koefoed, A., Madsen, M. B., Stipp, S. L. S., Boyd, N., Campbell, J. L., Pradler, I., VanBommel, S., Jacob, S., Owen, T., Savijarvi, H., Boehm, E., Bottcher, S., Burmeister, S., Guo, J., Kohler, J., Garcia, C. M., Mueller-Mellin, R., Wimmer-Schweingruber, R., Bridges, J. C., McConnochie, T., Benna, M., Franz, H., Bower, H., Brunner, A., Blau, H., Boucher, T., Carmosino, M., Atreya, S., Elliott, H., Halleaux, D., Renno, N., Wong, M., Pepin, R., Elliott, B., Spray, J., Thompson, L., Gordon, S., Newsom, H., Ollila, A., Williams, J., Vasconcelos, P., Bentz, J., Nealson, K., Popa, R., Kah, L. C., Moersch, J., Tate, C., Day, M., Kocurek, G., Hallet, B., Sletten, R., Francis, R., McCullough, E., Cloutis, E., ten Kate, I. L., Arvidson, R., Fraeman, A., Scholes, D., Slavney, S., Stein, T., Ward, J., Berger, J., Moores, J. E., 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), California Institute of Technology (CALTECH), Department of Earth Sciences [St. Catharines], Brock University [Canada], Lunar and Planetary Institute [Houston] (LPI), Los Alamos National Laboratory (LANL), Institut de recherche en astrophysique et planétologie (IRAP), 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), 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)-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), Mount Holyoke College, Oregon State University (OSU), University of Guelph, Research School of Earth Sciences [Canberra] (RSES), Australian National University (ANU), Rensselaer Polytechnic Institute (RPI), State University of New York (SUNY), Johns Hopkins University Applied Physics Laboratory [Laurel, MD] (APL), University of Hawaii, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), MSL Science Team, Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), and 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)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
010504 meteorology & atmospheric sciences ,Curiosity rover ,Geochemistry ,Mars ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,010502 geochemistry & geophysics ,01 natural sciences ,Jake_M: a martian mugearite ,chemistry.chemical_compound ,Nepheline ,MSL ,Chemical composition ,0105 earth and related environmental sciences ,Martian ,Phonolite ,Multidisciplinary ,Fractional crystallization (geology) ,petrochemistry ,Igneous rock ,Planetary science ,MSL Mars Petrochemistry ,chemistry ,13. Climate action ,Petrochemistry ,Geology ,[SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy - Abstract
International audience; "Jake_M," the first rock analyzed by the Alpha Particle X-ray Spectrometer instrument on the Curiosity rover, differs substantially in chemical composition from other known martian igneous rocks: It is alkaline (>15% normative nepheline) and relatively fractionated. Jake_M is compositionally similar to terrestrial mugearites, a rock type typically found at ocean islands and continental rifts. By analogy with these comparable terrestrial rocks, Jake_M could have been produced by extensive fractional crystallization of a primary alkaline or transitional magma at elevated pressure, with or without elevated water contents. The discovery of Jake_M suggests that alkaline magmas may be more abundant on Mars than on Earth and that Curiosity could encounter even more fractionated alkaline rocks (for example, phonolites and trachytes).
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29. Volatile, Isotope, and Organic Analysis of Martian Fines with the Mars Curiosity Rover
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Leshin, L. A., Mahaffy, P. R., Webster, C. R., Cabane, M., Coll, P., Conrad, P. G., Archer, P. D., Atreya, S. K., Brunner, A. E., Buch, A., Eigenbrode, J. L., Flesch, G. J., Franz, H. B., Freissinet, C., Glavin, D. P., McAdam, A. C., Miller, K. E., Ming, D. W., Morris, R. V., Navarro-Gonzalez, R., Niles, P. B., Owen, T., Pepin, R. O., Squyres, S., Steele, A., Stern, J. C., Summons, R. E., Sumner, D. Y., Sutter, B., Szopa, C., Teinturier, S., Trainer, M. G., Wray, J. J., Grotzinger, J. P., Kemppinen, O., Bridges, N., Johnson, J. R., Minitti, M., Cremers, D., Bell, J. F., Edgar, L., Farmer, J., Godber, A., Wadhwa, M., Wellington, D., McEwan, I., Newman, C., Richardson, M., Charpentier, A., Peret, L., King, P., Blank, J., Weigle, G., Schmidt, M., Li, S., Milliken, R., Robertson, K., Sun, V., Baker, M., Edwards, C., Ehlmann, B., Farley, K., Griffes, J., Miller, H., Newcombe, M., Pilorget, C., Rice, M., Siebach, K., Stack, K., Stolper, E., Brunet, C., Hipkin, V., Leveille, R., Marchand, G., Sanchez, P. S., Favot, L., Cody, G., Fluckiger, L., Lees, D., Nefian, A., Martin, M., Gailhanou, M., Westall, F., Israel, G., Agard, C., Baroukh, J., Donny, C., Gaboriaud, A., Guillemot, P., Lafaille, V., Lorigny, E., Paillet, A., Perez, R., Saccoccio, M., Yana, C., Armiens-Aparicio, C., Rodriguez, J. C., Blazquez, I. C., Gomez, F. G., Gomez-Elvira, J., Hettrich, S., Malvitte, A. L., Jimenez, M. M., Martinez-Frias, J., Martin-Soler, J., Martin-Torres, F. J., Jurado, A. M., Mora-Sotomayor, L., Caro, G. M., Lopez, S. N., Peinado-Gonzalez, V., Pla-Garcia, J., Manfredi, J. A. R., Romeral-Planello, J. J., Fuentes, S. A. S., Martinez, E. S., Redondo, J. T., Urqui-O'Callaghan, R., Mier, M.-P. Z., Chipera, S., Lacour, J.-L., Mauchien, P., Sirven, J.-B., Manning, H., Fairen, A., Hayes, A., Joseph, J., Sullivan, R., Thomas, P., Dupont, A., Lundberg, A., Melikechi, N., Mezzacappa, A., DeMarines, J., Grinspoon, D., Reitz, G., Prats, B., Atlaskin, E., Genzer, M., Harri, A.-M., Haukka, H., Kahanpaa, H., Kauhanen, J., Paton, M., Polkko, J., Schmidt, W., Siili, T., Fabre, C., Wilhelm, M. B., Poitrasson, F., Patel, K., Gorevan, S., Indyk, S., Paulsen, G., Gupta, S., Bish, D., Schieber, J., Gondet, B., Langevin, Y., Geffroy, C., Baratoux, D., Berger, G., Cros, A., d'Uston, C., Forni, O., Gasnault, O., Lasue, J., Lee, Q.-M., Maurice, S., Meslin, P.-Y., Pallier, E., Parot, Y., Pinet, P., Schroder, S., Toplis, M., Lewin, E., Brunner, W., Heydari, E., Achilles, C., Oehler, D., Coscia, D., Dromart, G., Robert, F., Sautter, V., Le Mouelic, S., Mangold, N., Nachon, M., Stalport, F., Francois, P., Raulin, F., Cameron, J., Clegg, S., Cousin, A., DeLapp, D., Dingler, R., Jackson, R. S., Johnstone, S., Lanza, N., Little, C., Nelson, T., Wiens, R. C., Williams, R. B., Jones, A., Kirkland, L., Treiman, A., Baker, B., Cantor, B., Caplinger, M., Davis, S., Duston, B., Edgett, K., Fay, D., Hardgrove, C., Harker, D., Herrera, P., Jensen, E., Kennedy, M. R., Krezoski, G., Krysak, D., Lipkaman, L., Malin, M., McCartney, E., McNair, S., Nixon, B., Posiolova, L., Ravine, M., Salamon, A., Saper, L., Stoiber, K., Supulver, K., Van Beek, J., Van Beek, T., Zimdar, R., French, K. L., Iagnemma, K., Goesmann, F., Goetz, W., Hviid, S., Johnson, M., Lefavor, M., Lyness, E., Breves, E., Dyar, M. D., Fassett, C., Blake, D. F., Bristow, T., DesMarais, D., Edwards, L., Haberle, R., Hoehler, T., Hollingsworth, J., Kahre, M., Keely, L., McKay, C., Bleacher, L., Brinckerhoff, W., Choi, D., Dworkin, J. P., Floyd, M., Garvin, J., Harpold, D., Martin, D. K., Pavlov, A., Raaen, E., Smith, M. D., Tan, F., Meyer, M., Posner, A., Voytek, M., Anderson, R. C., Aubrey, A., Beegle, L. W., Behar, A., Blaney, D., Brinza, D., Calef, F., Christensen, L., Crisp, J. A., DeFlores, L., Feldman, J., Feldman, S., Hurowitz, J., Jun, I., Keymeulen, D., Maki, J., Mischna, M., Morookian, J. M., Parker, T., Pavri, B., Schoppers, M., Sengstacken, A., Simmonds, J. J., Spanovich, N., Juarez, M. d. l. T., Vasavada, A. R., Yen, A., Cucinotta, F., Jones, J. H., Rampe, E., Nolan, T., Fisk, M., Radziemski, L., Barraclough, B., Bender, S., Berman, D., Dobrea, E. N., Tokar, R., Vaniman, D., Williams, R. M. E., Yingst, A., Lewis, K., Cleghorn, T., Huntress, W., Manhes, G., Hudgins, J., Olson, T., Stewart, N., Sarrazin, P., Grant, J., Vicenzi, E., Wilson, S. A., Bullock, M., Ehresmann, B., Hamilton, V., Hassler, D., Peterson, J., Rafkin, S., Zeitlin, C., Fedosov, F., Golovin, D., Karpushkina, N., Kozyrev, A., Litvak, M., Malakhov, A., Mitrofanov, I., Mokrousov, M., Nikiforov, S., Prokhorov, V., Sanin, A., Tretyakov, V., Varenikov, A., Vostrukhin, A., Kuzmin, R., Clark, B., Wolff, M., McLennan, S., Botta, O., Drake, D., Bean, K., Lemmon, M., Schwenzer, S. P., Anderson, R. B., Herkenhoff, K., Lee, E. M., Sucharski, R., Hernandez, M. A. d. P., Avalos, J. J. B., Ramos, M., Kim, M.-H., Malespin, C., Plante, I., Muller, J.-P., Ewing, R., Boynton, W., Downs, R., Fitzgibbon, M., Harshman, K., Morrison, S., Dietrich, W., Kortmann, O., Palucis, M., Williams, A., Lugmair, G., Wilson, M. A., Rubin, D., Jakosky, B., Balic-Zunic, T., Frydenvang, J., Jensen, J. K., Kinch, K., Koefoed, A., Madsen, M. B., Stipp, S. L. S., Boyd, N., Campbell, J. L., Gellert, R., Perrett, G., Pradler, I., VanBommel, S., Jacob, S., Rowland, S., Savijarvi, H., Boehm, E., Bottcher, S., Burmeister, S., Guo, J., Kohler, J., Garcia, C. M., Mueller-Mellin, R., Wimmer-Schweingruber, R., Bridges, J. C., McConnochie, T., Benna, M., Bower, H., Blau, H., Boucher, T., Carmosino, M., Elliott, H., Halleaux, D., Renno, N., Wong, M., Elliott, B., Spray, J., Thompson, L., Gordon, S., Newsom, H., Ollila, A., Williams, J., Vasconcelos, P., Bentz, J., Nealson, K., Popa, R., Kah, L. C., Moersch, J., Tate, C., Day, M., Kocurek, G., Hallet, B., Sletten, R., Francis, R., McCullough, E., Cloutis, E., ten Kate, I. L., Arvidson, R., Fraeman, A., Scholes, D., Slavney, S., Stein, T., Ward, J., Berger, J., Moores, J. E., Department of Earth and Environmental Sciences [Troy, NY], Rensselaer Polytechnic Institute (RPI), NASA Goddard Space Flight Center (GSFC), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), PLANETO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Astromaterials Research and Exploration Science (ARES), NASA Johnson Space Center (JSC), NASA-NASA, Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor] (AOSS), University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, Department of Astronomy [College Park], University of Maryland [College Park], University of Maryland System-University of Maryland System, Laboratoire de Génie des Procédés et Matériaux - EA 4038 (LGPM), CentraleSupélec, Center for Research and Exploration in Space Science and Technology [GSFC] (CRESST), Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge] (EAPS), Massachusetts Institute of Technology (MIT), Laboratorio de Química de Plasmas y Estudios Planetarios [Mexico], Instituto de Ciencias Nucleares [Mexico], Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM)-Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Institute for Astronomy [Honolulu], University of Hawai‘i [Mānoa] (UHM), School of Physics and Astronomy [Minneapolis], University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, Cornell University [New York], Geophysical Laboratory [Carnegie Institution], Carnegie Institution for Science, University of California [Davis] (UC Davis), University of California (UC), Jacobs Technology ESCG, Institut Pierre-Simon-Laplace (IPSL), École normale supérieure - Paris (ENS-PSL), 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), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), School of Earth and Atmospheric Sciences [Atlanta], Georgia Institute of Technology [Atlanta], Division of Geological and Planetary Sciences [Pasadena], California Institute of Technology (CALTECH), NWO-NSO: The role of perchlorates in the preservation of organic compounds on Mars, Petrology, California Institute of Technology (CALTECH)-NASA, Universidad Nacional Autónoma de México (UNAM)-Universidad Nacional Autónoma de México (UNAM), Carnegie Institution for Science [Washington], University of California, École normale supérieure - Paris (ENS Paris), IMPEC - LATMOS, Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), University of Minnesota [Twin Cities], Cornell University, and École normale supérieure - Paris (ENS Paris)-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)-Centre National d'Études Spatiales [Toulouse] (CNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)
- Subjects
Martian ,Multidisciplinary ,010504 meteorology & atmospheric sciences ,[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] ,Thermal decomposition ,Curiosity rover ,[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] ,chemistry.chemical_element ,Mars ,organic analysis ,Mars Exploration Program ,01 natural sciences ,Astrobiology ,chemistry.chemical_compound ,chemistry ,13. Climate action ,Isotopes of carbon ,Rocknest ,0103 physical sciences ,Sample Analysis at Mars ,Carbonate ,MSL Mars Volatiles Isotopes Organics Soil Gale Crater ,010303 astronomy & astrophysics ,Carbon ,0105 earth and related environmental sciences - Abstract
Samples from the Rocknest aeolian deposit were heated to ~835°C under helium flow and evolved gases analyzed by Curiosity’s Sample Analysis at Mars instrument suite. H 2 O, SO 2 , CO 2 , and O 2 were the major gases released. Water abundance (1.5 to 3 weight percent) and release temperature suggest that H 2 O is bound within an amorphous component of the sample. Decomposition of fine-grained Fe or Mg carbonate is the likely source of much of the evolved CO 2 . Evolved O 2 is coincident with the release of Cl, suggesting that oxygen is produced from thermal decomposition of an oxychloride compound. Elevated δD values are consistent with recent atmospheric exchange. Carbon isotopes indicate multiple carbon sources in the fines. Several simple organic compounds were detected, but they are not definitively martian in origin.
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- 2013
- Full Text
- View/download PDF
30. X-ray diffraction results from mars science laboratory: Mineralogy of rocknest at Gale crater
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Bish, D. L., Blake, D. F., Vaniman, D. T., Chipera, S. J., Morris, R. V., Ming, D. W., Treiman, A. H., Sarrazin, P., Morrison, S. M., Downs, R. T., Achilles, C. N., Yen, A. S., Bristow, T. F., Crisp, J. A., Morookian, J. M., Farmer, J. D., Rampe, E. B., Stolper, E. M., Spanovich, N., Achilles, C., Agard, C., Verdasca, J. A. A., Anderson, R., Archer, D., Armiens-Aparicio, C., Arvidson, R., Atlaskin, E., Atreya, S., Aubrey, A., Baker, B., Baker, M., Balic-Zunic, T., Baratoux, D., Baroukh, J., Barraclough, B., Bean, K., Beegle, L., Behar, A., Bell, J., Bender, S., Benna, M., Bentz, J., Berger, G., Berger, J., Berman, D., Bish, D., Avalos, J. J. B., Blaney, D., Blank, J., Blau, H., Bleacher, L., Boehm, E., Botta, O., Bottcher, S., Boucher, T., Bower, H., Boyd, N., Boynton, B., Breves, E., Bridges, J., Bridges, N., Brinckerhoff, W., Brinza, D., Bristow, T., Brunet, C., Brunner, A., Brunner, W., Buch, A., Bullock, M., Burmeister, S., Cabane, M., Calef, F., Cameron, J., Campbell, J. I., Cantor, B., Caplinger, M., Rodriguez, J. C., Carmosino, M., Blazquez, I. C., Charpentier, A., Chipera, S., Choi, D., Clark, B., Clegg, S., Cleghorn, T., Cloutis, E., Cody, G., Coll, P., Conrad, P., Coscia, D., Cousin, A., Cremers, D., Crisp, J., Cros, A., Cucinotta, F., d'Uston, C., Davis, S., Day, M. K., Juarez, M. d. l. T., DeFlores, L., DeLapp, D., DeMarines, J., DesMarais, D., Dietrich, W., Dingler, R., Donny, C., Downs, B., Drake, D., Dromart, G., Dupont, A., Duston, B., Dworkin, J., Dyar, M. D., Edgar, L., Edgett, K., Edwards, C., Edwards, L., Ehlmann, B., Ehresmann, B., Eigenbrode, J., Elliott, B., Elliott, H., Ewing, R., Fabre, C., Fairen, A., Farley, K., Farmer, J., Fassett, C., Favot, L., Fay, D., Fedosov, F., Feldman, J., Feldman, S., Fisk, M., Fitzgibbon, M., Flesch, G., Floyd, M., Fluckiger, L., Forni, O., Fraeman, A., Francis, R., Francois, P., Franz, H., Freissinet, C., French, K. L., Frydenvang, J., Gaboriaud, A., Gailhanou, M., Garvin, J., Gasnault, O., Geffroy, C., Gellert, R., Genzer, M., Glavin, D., Godber, A., Goesmann, F., Goetz, W., Golovin, D., Gomez, F. G., Gomez-Elvira, J., Gondet, B., Gordon, S., Gorevan, S., Grant, J., Griffes, J., Grinspoon, D., Grotzinger, J., Guillemot, P., Guo, J., Gupta, S., Guzewich, S., Haberle, R., Halleaux, D., Hallet, B., Hamilton, V., Hardgrove, C., Harker, D., Harpold, D., Harri, A.-M., Harshman, K., Hassler, D., Haukka, H., Hayes, A., Herkenhoff, K., Herrera, P., Hettrich, S., Heydari, E., Hipkin, V., Hoehler, T., Hollingsworth, J., Hudgins, J., Huntress, W., Hurowitz, J., Hviid, S., Iagnemma, K., Indyk, S., Israel, G., Jackson, R., Jacob, S., Jakosky, B., Jensen, E., Jensen, J. K., Johnson, J., Johnson, M., Johnstone, S., Jones, A., Jones, J., Joseph, J., Jun, I., Kah, L., Kahanpaa, H., Kahre, M., Karpushkina, N., Kasprzak, W., Kauhanen, J., Keely, L., Kemppinen, O., Keymeulen, D., Kim, M.-H., Kinch, K., King, P., Kirkland, L., Kocurek, G., Koefoed, A., Kohler, J., Kortmann, O., Kozyrev, A., Krezoski, J., Krysak, D., Kuzmin, R., Lacour, J. L., Lafaille, V., Langevin, Y., Lanza, N., Lasue, J., Le Mouelic, S., Lee, E. M., Lee, Q.-M., Lees, D., Lefavor, M., Lemmon, M., Malvitte, A. L., Leshin, L., Leveille, R., Lewin-Carpintier, E., Lewis, K., Li, S., Lipkaman, L., Little, C., Litvak, M., Lorigny, E., Lugmair, G., Lundberg, A., Lyness, E., Madsen, M., Mahaffy, P., Maki, J., Malakhov, A., Malespin, C., Malin, M., Mangold, N., Manhes, G., Manning, H., Marchand, G., Jimenez, M. M., Garcia, C. M., Martin, D., Martin, M., Martinez-Frias, J., Martin-Soler, J., Martin-Torres, F. J., Mauchien, P., Maurice, S., McAdam, A., McCartney, E., McConnochie, T., McCullough, E., McEwan, I., McKay, C., McLennan, S., McNair, S., Melikechi, N., Meslin, P.-Y., Meyer, M., Mezzacappa, A., Miller, H., Miller, K., Milliken, R., Ming, D., Minitti, M., Mischna, M., Mitrofanov, I., Moersch, J., Mokrousov, M., Jurado, A. M., Moores, J., Mora-Sotomayor, L., Morris, R., Morrison, S., Mueller-Mellin, R., Muller, J.-P., Caro, G. M., Nachon, M., Lopez, S. N., Navarro-Gonzalez, R., Nealson, K., Nefian, A., Nelson, T., Newcombe, M., Newman, C., Newsom, H., Nikiforov, S., Niles, P., Nixon, B., Dobrea, E. N., Nolan, T., Oehler, D., Ollila, A., Olson, T., Owen, T., Hernandez, M. A. d. P., Paillet, A., Pallier, E., Palucis, M., Parker, T., Parot, Y., Patel, K., Paton, M., Paulsen, G., Pavlov, A., Pavri, B., Peinado-Gonzalez, V., Pepin, R., Peret, L., Perez, R., Perrett, G., Peterson, J., Pilorget, C., Pinet, P., Pla-Garcia, J., Plante, I., Poitrasson, F., Polkko, J., Popa, R., Posiolova, L., Posner, A., Pradler, I., Prats, B., Prokhorov, V., Purdy, S. W., Raaen, E., Radziemski, L., Rafkin, S., Ramos, M., Rampe, E., Raulin, F., Ravine, M., Reitz, G., Renno, N., Rice, M., Richardson, M., Robert, F., Robertson, K., Manfredi, J. A. R., Romeral-Planello, J. J., Rowland, S., Rubin, D., Saccoccio, M., Salamon, A., Sandoval, J., Sanin, A., Fuentes, S. A. S., Saper, L., Sautter, V., Savijarvi, H., Schieber, J., Schmidt, M., Schmidt, W., Scholes, D. D., Schoppers, M., Schroder, S., Schwenzer, S., Martinez, E. S., Sengstacken, A., Shterts, R., Siebach, K., Siili, T., Simmonds, J., Sirven, J.-B., Slavney, S., Sletten, R., Smith, M., Sanchez, P. S., Spray, J., Squyres, S., Stack, K., Stalport, F., Steele, A., Stein, T., Stern, J., Stewart, N., Stipp, S. L. S., Stoiber, K., Stolper, E., Sucharski, B., Sullivan, R., Summons, R., Sumner, D., Sun, V., Supulver, K., Sutter, B., Szopa, C., Tan, F., Tate, C., Teinturier, S., ten Kate, I., Thomas, P., Thompson, L., Tokar, R., Toplis, M., Redondo, J. T., Trainer, M., Treiman, A., Tretyakov, V., Urqui-O'Callaghan, R., Van Beek, J., Van Beek, T., VanBommel, S., Vaniman, D., Varenikov, A., Vasavada, A., Vasconcelos, P., Vicenzi, E., Vostrukhin, A., Voytek, M., Wadhwa, M., Ward, J., Webster, C., Weigle, E., Wellington, D., Westall, F., Wiens, R. C., Wilhelm, M. B., Williams, A., Williams, J., Williams, R., Williams, R. B. M., Wilson, M., Wimmer-Schweingruber, R., Wolff, M., Wong, M., Wray, J., Wu, M., Yana, C., Yen, A., Yingst, A., Zeitlin, C., Zimdar, R., Mier, M.-P. Z., GeoRessources, 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), NWO-NSO: The role of perchlorates in the preservation of organic compounds on Mars, and Petrology
- Subjects
Multidisciplinary ,010504 meteorology & atmospheric sciences ,Water on Mars ,Curiosity rover ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Mineralogy ,Mars ,Mars Exploration Program ,Martian soil ,engineering.material ,01 natural sciences ,MSL Mars X-ray Diffraction Mineralogy Rocknest Gale Crater ,Meteorite ,Impact crater ,13. Climate action ,Rocknest ,0103 physical sciences ,Pigeonite ,engineering ,Composition of Mars ,MSL ,010303 astronomy & astrophysics ,0105 earth and related environmental sciences ,mineralogy of Rocknest at Gale crater - Abstract
The Mars Science Laboratory rover Curiosity scooped samples of soil from the Rocknest aeolian bedform in Gale crater. Analysis of the soil with the Chemistry and Mineralogy (CheMin) x-ray diffraction (XRD) instrument revealed plagioclase (~An57), forsteritic olivine (~Fo62), augite, and pigeonite, with minor K-feldspar, magnetite, quartz, anhydrite, hematite, and ilmenite. The minor phases are present at, or near, detection limits. The soil also contains 27 ± 14 weight percent x-ray amorphous material, likely containing multiple Fe 3+ - and volatile-bearing phases, including possibly a substance resembling hisingerite. The crystalline component is similar to the normative mineralogy of certain basaltic rocks from Gusev crater on Mars and of martian basaltic meteorites. The amorphous component is similar to that found on Earth in places such as soils on the Mauna Kea volcano, Hawaii.
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- 2013
- Full Text
- View/download PDF
31. Partial Melting of Lodran Protolith
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Moine, B. N., Dobrica, E., Hammouda, Tahar, Boyet, M., Poitrasson, F., Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Dynamique terrestre et planétaire (DTP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-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)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and 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)
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[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] ,[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] - Published
- 2009
32. Mesure ponctuelle des rapports isotopiques du Strontium par LA-MC-ICP-MS : couplage laser Femtoseconde-MC-ICPMS Neptune
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Delpech, G., Freydier, R., Gregoire, M., Poitrasson, F., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
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[SDU.STU]Sciences of the Universe [physics]/Earth Sciences - Published
- 2007
33. Significance of the mantle Fe isotope variations
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Poitrasson, F., Delpech, G., Gregoire, M., Moine, Bertrand N., Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
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[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2007
34. Iron isotopes track planetary accretion or differenciation ?
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Poitrasson, F., Roskosz, M., Delpech, G., Gregoire, M., Moine, Bertrand N., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and CRINON, Evelyne
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[SDU.STU] Sciences of the Universe [physics]/Earth Sciences ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2006
35. Subdaily geochemical and microstructural study on the Chilean coastal gasteropode Concholepas concholepas : towards a high resolution proxy calibration
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Lazareth, C.E., Guzman, N., Poitrasson, F., Cuif, J.P., Ortlieb, L., CRINON, Evelyne, Interactions et dynamique des environnements de surface (IDES), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2005
36. ChemCam science objectives for the Mars Science Laboratory (MSL) Rover
- Author
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Wiens, R.C., Maurice, S., Bridges, N., Clark, B.C., Cremers, D.A., Herkenhoff, K.E., Kirkland, L.E., Mangold, N., Manhes, G., Mauchien, P., Mckay, C.P., Newson, H.E., Poitrasson, F., Sautter, V., D'Uston, C., Vaniman, D.T., Shipp, S.S., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Minéralogie, Pétrologie (MP), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)
- Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences - Abstract
p. 1580
- Published
- 2005
37. A high resolution temperature calibration study on the chilean gastropod Concholepas concholepas
- Author
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Guzman, N., Claire E. Lazareth, Poitrasson, F., Candaudap, F., Cuif, Jp, and Ortlieb, L.
- Published
- 2004
38. Iron sources and dissolved-particulate interactions in the seawater of the Western Equatorial Pacific, iron isotope perspectives
- Author
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Labatut, M., Lacan, F., Pradoux, C., Chmeleff, J., Radic, A., Murray, J. W., Poitrasson, F., Johansen, A. M., Thil, F., Labatut, M., Lacan, F., Pradoux, C., Chmeleff, J., Radic, A., Murray, J. W., Poitrasson, F., Johansen, A. M., and Thil, F.
- Abstract
This work presents iron isotope data in the western equatorial Pacific. Marine aerosols and top core margin sediments display a slightly heavy Fe isotopic composition (Fe-56) of 0.330.11 (2SD) and 0.140.07, respectively. Samples reflecting the influence of Papua New Guinea runoff (Sepik River and Rabaul volcano water) are characterized by crustal values. In seawater, Fe is mainly supplied in the particulate form and is found with a Fe-56 between -0.49 and 0.34 +/- 0.07 parts per thousand. The particulate Fe seems to be brought mainly by runoff and transported across continental shelves and slopes. Aerosols are suspected to enrich the surface Vitiaz Strait waters, while hydrothermal activity likely enriched New Ireland waters. Dissolved Fe isotopic ratios are found between -0.03 and 0.53 +/- 0.07 parts per thousand. They are almost systematically heavier than the corresponding particulate Fe, and the difference between the signature of both phases is similar for most samples with Fe-56(DFe-PFe)=+0.27 +/- 0.25 parts per thousand (2SD). This is interpreted as an equilibrium isotopic fractionation revealing exchange fluxes between both phases. The dissolved phase being heavier than the particles suggests that the exchanges result in a net nonreductive release of dissolved Fe. This process seems to be locally significantly more intense than Fe reductive dissolution documented along reducing margins. It may therefore constitute a very significant iron source to the ocean, thereby influencing the actual estimation of the iron residence time and sinks. The underlying processes could also apply to other elements.
- Published
- 2014
- Full Text
- View/download PDF
39. Iron sources and dissolved‐particulate interactions in the seawater of the Western Equatorial Pacific, iron isotope perspectives
- Author
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Labatut, M., primary, Lacan, F., additional, Pradoux, C., additional, Chmeleff, J., additional, Radic, A., additional, Murray, J. W., additional, Poitrasson, F., additional, Johansen, A. M., additional, and Thil, F., additional
- Published
- 2014
- Full Text
- View/download PDF
40. Nu 1700: a new large-geometry high-resolution multiple collector ICP-MS
- Author
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Halliday, A, Freedman, P, Oberli, F, Baur, H, Hollins, S, Levasseur, S, Leya, I, Poitrasson, F, Quitte, G, Teutsch, N, Wiechert, U, Williams, H, and Williams, J
- Published
- 2002
41. Measurement of the isotopic composition of dissolved iron in the open ocean
- Author
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Lacan, F., Radic, A., Jeandel, C., Poitrasson, F., Sarthou, Geraldine, Pradoux, C., Freydier, R., Lacan, F., Radic, A., Jeandel, C., Poitrasson, F., Sarthou, Geraldine, Pradoux, C., and Freydier, R.
- Abstract
This work demonstrates for the first time the feasibility of the measurement of the isotopic composition of dissolved iron in seawater for a typical open ocean Fe concentration range (0.1-1 nM). It also presents the first data of this kind. Iron is preconcentrated using a Nitriloacetic Acid Superflow resin and purified using an AG1x4 anion exchange resin. The isotopic ratios are measured with a MC-ICPMS Neptune, coupled with a desolvator (Aridus II), using a Fe-57-Fe-58 double spike mass bias correction. Measurement precision (0.13%, 2SD) allows resolving small iron isotopic composition variations within the water column, in the Atlantic sector of the Southern Ocean (from delta Fe-57 = -0.19 to +0.32 parts per thousand). Isotopically light iron found in the Upper Circumpolar Deep Water is hypothesized to result from organic matter remineralization. Shallow samples suggest that, if occurring, an iron isotopic fractionation during iron uptake by phytoplankton is characterized by a fractionation factor, such as: vertical bar Delta Fe-57((plankton-seawater))vertical bar < 0.48 parts per thousand.
- Published
- 2008
- Full Text
- View/download PDF
42. Measurement of the isotopic composition of dissolved iron in the open ocean
- Author
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Lacan, F., primary, Radic, A., additional, Jeandel, C., additional, Poitrasson, F., additional, Sarthou, G., additional, Pradoux, C., additional, and Freydier, R., additional
- Published
- 2008
- Full Text
- View/download PDF
43. Evaluation of infrared femtosecond laser ablation for the analysis of geomaterials by ICP-MS
- Author
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Freydier, R., primary, Candaudap, F., additional, Poitrasson, F., additional, Arbouet, A., additional, Chatel, B., additional, and Dupré, B., additional
- Published
- 2008
- Full Text
- View/download PDF
44. Effects of femtosecond laser ablation on monazite micro- and nano-structure
- Author
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Seydoux-Guillaume, A.M., primary, Freydier, R., additional, Poitrasson, F., additional, and Wirth, R., additional
- Published
- 2006
- Full Text
- View/download PDF
45. Iron isotopes track planetary accretion or differentiation?
- Author
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Poitrasson, F., primary, Roskosz, M., additional, Delpech, G., additional, Grégoire, M., additional, and Moine, B.N., additional
- Published
- 2006
- Full Text
- View/download PDF
46. Significance of iron isotope mineral fractionation in pallasites and iron meteorites for the core–mantle differentiation of terrestrial planets
- Author
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POITRASSON, F, primary, LEVASSEUR, S, additional, and TEUTSCH, N, additional
- Published
- 2005
- Full Text
- View/download PDF
47. Springwater Geochemical Response to a Seismic Event
- Author
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Poitrasson, F., primary
- Published
- 1998
- Full Text
- View/download PDF
48. Springwater chloride ion anomaly prior to a ML = 5.2 Pyrenean earthquake
- Author
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Toutain, J.P., primary, Munoz, M., additional, Poitrasson, F., additional, and Lienard, A.C., additional
- Published
- 1997
- Full Text
- View/download PDF
49. The Relationship between Petrology and Nd Isotopes as Evidence for Contrasting Anorogenic Granite Genesis: Example of the Corsican Province (SE France)
- Author
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POITRASSON, F., primary, DUTHOU, J.-L., additional, and PIN, C., additional
- Published
- 1995
- Full Text
- View/download PDF
50. Hydrothermal Remobilisation of Sm-Nd Isotopes at the Mineral Scale in Granites
- Author
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Poitrasson, F., primary
- Published
- 1994
- Full Text
- View/download PDF
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