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1. An olivine cumulate outcrop on the floor of Jezero crater, Mars

Author

Liu, Y, Tice, MM, Schmidt, ME, Treiman, AH, Kizovski, TV, Hurowitz, JA, Allwood, AC, Henneke, J, Pedersen, DAK, VanBommel, SJ, Jones, MWM, Knight, AL, Orenstein, BJ, Clark, BC, Elam, WT, Heirwegh, CM, Barber, T, Beegle, LW, Benzerara, K, Bernard, S, Beyssac, O, Bosak, T, Brown, AJ, Cardarelli, EL, Catling, DC, Christian, Cloutis, EA, Cohen, BA, Davidoff, S, Fairén, AG, Farley, KA, Flannery, DT, Galvin, A, Grotzinger, JP, Gupta, S, Hall, J, Herd, CDK, Hickman-Lewis, K, Hodyss, RP, Horgan, BHN, Johnson, Jørgensen, JL, Kah, LC, Maki, JN, Mandon, L, Mangold, N, McCubbin, FM, McLennan, SM, Moore, K, Nachon, M, Nemere, P, Nothdurft, LD, Núñez, JI, O'Neil, L, Quantin-Nataf, CM, Sautter, V, Shuster, DL, Siebach, KL, Simon, JI, Sinclair, KP, Stack, KM, Steele, A, Tarnas, JD, Tosca, NJ, Uckert, K, Udry, A, Wade, LA, Weiss, BP, Wiens, RC, Williford, KH, Zorzano, M-P, Mangold, Nicolas, Cosmochimie [IMPMC] (IMPMC_COSMO), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Planétologie et Géosciences [UMR_C 6112] (LPG), Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Liu, Y [0000-0003-0308-0942], Tice, MM [0000-0003-2560-1702], Schmidt, ME [0000-0003-4793-7899], Treiman, AH [0000-0002-8073-2839], Kizovski, TV [0000-0001-8188-9769], Hurowitz, JA [0000-0002-5857-8652], Henneke, J [0000-0002-3195-7417], Pedersen, DAK [0000-0001-7182-8567], VanBommel, SJ [0000-0002-6565-0827], Jones, MWM [0000-0002-0720-8715], Knight, AL [0000-0001-6832-8190], Orenstein, BJ [0000-0002-6586-4227], Clark, BC [0000-0002-5546-8757], Beegle, LW [0000-0002-4944-4353], Benzerara, K [0000-0002-0553-0137], Bernard, S [0000-0001-5576-7020], Beyssac, O [0000-0001-8879-4762], Bosak, T [0000-0001-5179-5323], Brown, AJ [0000-0002-9352-6989], Cardarelli, EL [0000-0001-5451-2309], Catling, DC [0000-0001-5646-120X], Christian, JR [0000-0003-4646-2852], Cloutis, EA [0000-0001-7301-0929], Cohen, BA [0000-0001-5896-5903], Davidoff, S [0000-0002-4417-7268], Fairén, AG [0000-0002-2938-6010], Flannery, DT [0000-0001-8982-496X], Grotzinger, JP [0000-0001-9324-1257], Gupta, S [0000-0001-6415-1332], Hall, J [0000-0003-0884-3777], Herd, CDK [0000-0001-5210-4002], Hickman-Lewis, K [0000-0001-8014-233X], Hodyss, RP [0000-0002-6523-3660], Horgan, BHN [0000-0001-6314-9724], Johnson, JR [0000-0002-5586-4901], Jørgensen, JL [0000-0002-0343-239X], Kah, LC [0000-0001-7172-2033], Maki, JN [0000-0002-7887-0343], Mandon, L [0000-0002-9310-0742], Mangold, N [0000-0002-0022-0631], McCubbin, FM [0000-0002-2101-4431], McLennan, SM [0000-0003-4259-7178], Nachon, M [0000-0003-0417-7076], Nothdurft, LD [0000-0001-9646-9070], Núñez, JI [0000-0003-0930-6674], O'Neil, L [0000-0003-1555-8229], Quantin-Nataf, CM [0000-0002-8313-8595], Shuster, DL [0000-0003-2507-9977], Siebach, KL [0000-0002-6628-6297], Simon, JI [0000-0002-3969-8958], Sinclair, KP [0000-0001-6261-4591], Stack, KM [0000-0003-3444-6695], Steele, A [0000-0001-9643-2841], Tarnas, JD [0000-0002-6256-0826], Tosca, NJ [0000-0003-4415-4231], Uckert, K [0000-0002-0859-5526], Udry, A [0000-0002-0074-8110], Wade, LA [0000-0001-8254-8181], Weiss, BP [0000-0003-3113-3415], Wiens, RC [0000-0002-3409-7344], Zorzano, M-P [0000-0002-4492-9650], and Apollo - University of Cambridge Repository

Subjects
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, Multidisciplinary, 5101 Astronomical Sciences, 37 Earth Sciences, 3705 Geology, 5109 Space Sciences, [SDU.STU.PL] Sciences of the Universe [physics]/Earth Sciences/Planetology, 51 Physical Sciences, 3703 Geochemistry
Abstract

International audience; The geological units on the floor of Jezero crater, Mars, are part of a wider regional stratigraphy of olivine-rich rocks, which extends well beyond the crater. We investigate the petrology of olivine and carbonate-bearing rocks of the Séítah formation in the floor of Jezero. Using multispectral images and x-ray fluorescence data, acquired by the Perseverance rover, we performed a petrographic analysis of the Bastide and Brac outcrops within this unit. We find that these outcrops are composed of igneous rock, moderately altered by aqueous fluid. The igneous rocks are mainly made of coarse-grained olivine, similar to some Martian meteorites. We interpret them as an olivine cumulate, formed by settling and enrichment of olivine through multi-stage cooling of a thick magma body.

Published
2022
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2. Mars Science Laboratory CheMin Data From the Glen Torridon Region and the Significance of Lake-Groundwater Interactions in Interpreting Mineralogy and Sedimentary History

Author

Thorpe, MT, Bristow, TF, Rampe, EB, Tosca, NJ, Grotzinger, JP, Bennett, KA, Achilles, CN, Blake, DF, Chipera, SJ, Downs, G, Downs, RT, Morrison, SM, Tu, V, Castle, N, Craig, P, Marais, DJD, Hazen, RM, Ming, DW, Morris, RV, Treiman, AH, Vaniman, DT, Yen, AS, Vasavada, AR, Dehouck, E, Bridges, JC, Berger, J, McAdam, A, Peretyazhko, T, Siebach, KL, Bryk, AB, Fox, VK, Fedo, CM, Thorpe, MT [0000-0002-1235-9016], Bristow, TF [0000-0001-6725-0555], Rampe, EB [0000-0002-6999-0028], Tosca, NJ [0000-0003-4415-4231], Bennett, KA [0000-0001-8105-7129], Achilles, CN [0000-0001-9185-6768], Morrison, SM [0000-0002-1712-8057], Castle, N [0000-0002-0608-1249], Craig, P [0000-0003-4080-4997], Marais, DJD [0000-0002-6827-5831], Ming, DW [0000-0003-0567-8876], Morris, RV [0000-0003-1413-4002], Treiman, AH [0000-0002-8073-2839], Vaniman, DT [0000-0001-7661-2626], Yen, AS [0000-0003-2410-0412], Vasavada, AR [0000-0003-2665-286X], Dehouck, E [0000-0002-1368-4494], Bridges, JC [0000-0002-9579-5779], McAdam, A [0000-0001-9120-2991], Peretyazhko, T [0000-0001-5533-6490], Siebach, KL [0000-0002-6628-6297], Bryk, AB [0000-0002-2013-7456], Fedo, CM [0000-0002-2626-1132], and Apollo - University of Cambridge Repository

Subjects
Geophysics, Space and Planetary Science, Geochemistry and Petrology, Gale crater sedimentary history, Earth and Planetary Sciences (miscellaneous), Glen Torridon mineralogy, lacustrine groundwater mixing
Abstract

The Glen Torridon (GT) region in Gale crater, Mars is a region with strong clay mineral signatures inferred from orbital spectroscopy. The CheMin X‐ray diffraction (XRD) instrument onboard the Mars Science Laboratory rover, Curiosity, measured some of the highest clay mineral abundances to date within GT, complementing the orbital detections. GT may also be unique because in the XRD patterns of some samples, CheMin identified new phases, including: (a) Fe‐carbonates, and (b) a phase with a novel peak at 9.2 Å. Fe‐carbonates have been previously suggested from other instruments onboard, but this is the first definitive reporting by CheMin of Fe‐carbonate. This new phase with a 9.2 Å reflection has never been observed in Gale crater and may be a new mineral for Mars, but discrete identification still remains enigmatic because no single phase on Earth is able to account for all of the GT mineralogical, geochemical, and sedimentological constraints. Here, we modeled XRD profiles and propose an interstratified clay mineral, specifically greenalite‐minnesotaite, as a reasonable candidate. The coexistence of Fe‐carbonate and Fe‐rich clay minerals in the GT samples supports a conceptual model of a lacustrine groundwater mixing environment. Groundwater interaction with percolating lake waters in the sediments is common in terrestrial lacustrine settings, and the diffusion of two distinct water bodies within the subsurface can create a geochemical gradient and unique mineral front in the sediments. Ultimately, the proximity to this mixing zone may have controlled the secondary minerals preserved in sedimentary rocks exposed in GT.

Published
2022

3. The potassic sedimentary rocks in Gale Crater, Mars, as seen by ChemCam on board Curiosity

Author

Le Deit, L, Mangold, N, Forni, O, Cousin, A, Lasue, J, Schroder, S, Wiens, RC, Sumner, D, Fabre, C, Stack, KM, Anderson, RB, Blaney, D, Clegg, S, Dromart, G, Fisk, M, Gasnault, O, Grotzinger, JP, Gupta, S, Lanza, N, Le Mouelic, S, Maurice, S, McLennan, SM, Meslin, P-Y, Nachon, M, Newsom, H, Payre, V, Rapin, W, Rice, M, Sautter, V, Treiman, AH, DLR Institute of Planetary Research, German Aerospace Center (DLR), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), 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), 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), Los Alamos National Laboratory (LANL), University of California [Davis] (UC Davis), University of California, California Institute of Technology (CALTECH), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Oregon State University (OSU), Department of Physics and Materials Science & Centre for Functional Photonics (CFP), The University of Hong Kong (HKU), Stony Brook University [SUNY] (SBU), State University of New York (SUNY), Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École des Ponts ParisTech (ENPC)-École polytechnique (X)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institute of Meteoritics [Albuquerque] (IOM), The University of New Mexico [Albuquerque], Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), 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)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Lunar and Planetary Institute [Houston] (LPI), 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), University of California (UC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Laboratoire Ecologie Fonctionnelle et Environnement (LEFE), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), 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), California Institute of Technology (CALTECH)-NASA, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), and Science and Technology Facilities Council (STFC)

Subjects
Geochemistry & Geophysics, SANDSTONE, Science & Technology, INSTRUMENT SUITE, ORIGIN, IN-SITU, ROVER, K-FELDSPAR, EVOLUTION, [SDU]Sciences of the Universe [physics], Physical Sciences, OLIVINE, OUTCROP, SYSTEM, ComputingMilieux_MISCELLANEOUS
Abstract

The Mars Science Laboratory rover Curiosity encountered potassium-rich clastic sedimentary rocks at two sites in Gale Crater, the waypoints Cooperstown and Kimberley. These rocks include several distinct meters thick sedimentary outcrops ranging from fine sandstone to conglomerate, interpreted to record an ancient fluvial or fluvio-deltaic depositional system. From ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) chemical analyses, this suite of sedimentary rocks has an overall mean K2O abundance that is more than 5 times higher than that of the average Martian crust. The combined analysis of ChemCam data with stratigraphic and geographic locations reveals that the mean K2O abundance increases upward through the stratigraphic section. Chemical analyses across each unit can be represented as mixtures of several distinct chemical components, i.e., mineral phases, including K-bearing minerals, mafic silicates, Fe-oxides, and Fe-hydroxide/oxyhydroxides. Possible K-bearing minerals include alkali feldspar (including anorthoclase and sanidine) and K-bearing phyllosilicate such as illite. Mixtures of different source rocks, including a potassium-rich rock located on the rim and walls of Gale Crater, are the likely origin of observed chemical variations within each unit. Physical sorting may have also played a role in the enrichment in K in the Kimberley formation. The occurrence of these potassic sedimentary rocks provides additional evidence for the chemical diversity of the crust exposed at Gale Crater.

Published
2016
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