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Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars

Farley, K. A. and Stack, K. M. and Shuster, D. L. and Horgan, B. H. N. and Hurowitz, J. A. and Tarnas, J. D. and Simon, J. I. and Sun, V. Z. and Scheller, E. L. and Moore, K. R. and McLennan, S. M. and Vasconcelos, P. M. and Wiens, R. C. and Treiman, A. H. and Mayhew, L. E. and Beyssac, O. and Kizovski, T. V. and Tosca, N. J. and Williford, K. H. and Crumpler, L. S. and Beegle, L. W. and Bell, J. F. and Ehlmann, B. L. and Liu, Y. and Maki, J. N. and Schmidt, M. E. and Allwood, A. C. and Amundsen, H. E. F. and Bhartia, R. and Bosak, T. and Brown, A. J. and Clark, B. C. and Cousin, A. and Forni, O. and Gabriel, T. S. J. and Goreva, Y. and Gupta, S. and Hamran, S.-E. and Herd, C. D. K. and Hickman-Lewis, K. and Johnson, J. R. and Kah, L. C. and Kelemen, P. B. and Kinch, K. B. and Mandon, L. and Mangold, N. and Quantin-Nataf, C. and Rice, M. S. and Russell, P. S. and Sharma, S. and Siljeström, S. and Steele, A. and Sullivan, R. and Wadhwa, M. and Weiss, B. P. and Williams, A. J. and Wogsland, B. V. and Willis, P. A. and Acosta-Maeda, T. A. and Beck, P. and Benzerara, K. and Bernard, S. and Burton, A. S. and Cardarelli, E. L. and Chide, B. and Clavé, E. and Cloutis, E. A. and Cohen, B. A. and Czaja, A. D. and Debaille, V. and Dehouck, E. and Fairén, A. G. and Flannery, D. T. and Fleron, S. Z. and Fouchet, T. and Frydenvang, J. and Garczynski, B. J. and Gibbons, E. F. and Hausrath, E. M. and Hayes, A. G. and Henneke, J. and Jørgensen, J. L. and Kelly, E. M. and Lasue, J. and Le Mouélic, S. and Madariaga, J. M. and Maurice, S. and Merusi, M. and Meslin, P.-Y. and Milkovich, S. M. and Million, C. C. and Moeller, R. C. and Núñez, J. I. and Ollila, A. M. and Paar, G. and Paige, D. A. and Pedersen, D. A. K. and Pilleri, P. and Pilorget, C. and Pinet, P. C. and Rice, J. W. and Royer, C. and Sautter, V. and Schulte, M. and Sephton, M. A. and Sharma, S. K. and Sholes, S. F. and Spanovich, N. and St. Clair, M. and Tate, C. D. and Uckert, K. and VanBommel, S. J. and Yanchilina, A. G. and Zorzano, M.-P. (2022) Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars. Science, 377 (6614). Art. No. eabo2196. ISSN 0036-8075. doi:10.1126/science.abo2196.

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The Perseverance rover landed in Jezero crater, Mars, to investigate ancient lake and river deposits. We report observations of the crater floor, below the crater’s sedimentary delta, finding that the floor consists of igneous rocks altered by water. The lowest exposed unit, informally named Séítah, is a coarsely crystalline olivine-rich rock, which accumulated at the base of a magma body. Magnesium-iron carbonates along grain boundaries indicate reactions with carbon dioxide–rich water under water-poor conditions. Overlying Séítah is a unit informally named Máaz, which we interpret as lava flows or the chemical complement to Séítah in a layered igneous body. Voids in these rocks contain sulfates and perchlorates, likely introduced by later near-surface brine evaporation. Core samples of these rocks have been stored aboard Perseverance for potential return to Earth.

Item Type:Article
Related URLs:
URLURL TypeDescription
Farley, K. A.0000-0002-7846-7546
Stack, K. M.0000-0003-3444-6695
Shuster, D. L.0000-0003-2507-9977
Horgan, B. H. N.0000-0001-6314-9724
Hurowitz, J. A.0000-0002-5857-8652
Tarnas, J. D.0000-0002-6256-0826
Simon, J. I.0000-0002-3969-8958
Sun, V. Z.0000-0003-1480-7369
Scheller, E. L.0000-0002-9981-5802
Moore, K. R.0000-0002-4905-9623
McLennan, S. M.0000-0003-4259-7178
Wiens, R. C.0000-0002-3409-7344
Treiman, A. H.0000-0002-8073-2839
Mayhew, L. E.0000-0002-6753-1434
Beyssac, O.0000-0001-8879-4762
Kizovski, T. V.0000-0001-8188-9769
Tosca, N. J.0000-0003-4415-4231
Williford, K. H.0000-0003-0633-408X
Crumpler, L. S.0000-0002-5941-6372
Beegle, L. W.0000-0002-4944-4353
Bell, J. F.0000-0002-2006-4074
Ehlmann, B. L.0000-0002-2745-3240
Liu, Y.0000-0003-0308-0942
Maki, J. N.0000-0002-7887-0343
Schmidt, M. E.0000-0003-4793-7899
Bhartia, R.0000-0002-1434-7481
Bosak, T.0000-0001-5179-5323
Brown, A. J.0000-0002-9352-6989
Clark, B. C.0000-0002-5546-8757
Cousin, A.0000-0001-7823-7794
Forni, O.0000-0001-6772-9689
Gabriel, T. S. J.0000-0002-9767-4153
Goreva, Y.0000-0002-4474-4250
Gupta, S.0000-0001-6415-1332
Hamran, S.-E.0000-0002-1078-449X
Herd, C. D. K.0000-0001-5210-4002
Hickman-Lewis, K.0000-0001-8014-233X
Johnson, J. R.0000-0002-5586-4901
Kah, L. C.0000-0001-7172-2033
Kelemen, P. B.0000-0003-4757-0855
Kinch, K. B.0000-0002-4629-8880
Mandon, L.0000-0002-9310-0742
Mangold, N.0000-0002-0022-0631
Quantin-Nataf, C.0000-0002-8313-8595
Rice, M. S.0000-0002-8370-4139
Sharma, S.0000-0001-8822-7960
Siljeström, S.0000-0002-4975-6074
Steele, A.0000-0001-9643-2841
Sullivan, R.0000-0003-4191-598X
Wadhwa, M.0000-0001-9187-1255
Weiss, B. P.0000-0003-3113-3415
Williams, A. J.0000-0001-6299-0845
Wogsland, B. V.0000-0002-7829-5094
Willis, P. A.0000-0001-5394-1101
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Benzerara, K.0000-0002-0553-0137
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Burton, A. S.0000-0002-1194-4336
Cardarelli, E. L.0000-0001-5451-2309
Chide, B.0000-0002-5124-9119
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Cloutis, E. A.0000-0001-7301-0929
Cohen, B. A.0000-0001-5896-5903
Czaja, A. D.0000-0002-2450-0734
Debaille, V.0000-0002-6544-4564
Dehouck, E.0000-0002-1368-4494
Fairén, A. G.0000-0002-2938-6010
Flannery, D. T.0000-0001-8982-496X
Fleron, S. Z.0000-0001-7413-3912
Fouchet, T.0000-0001-9040-8285
Frydenvang, J.0000-0001-9294-1227
Garczynski, B. J.0000-0002-7668-3675
Gibbons, E. F.0000-0002-4789-4772
Hausrath, E. M.0000-0002-5520-1622
Hayes, A. G.0000-0001-6397-2630
Henneke, J.0000-0002-3195-7417
Jørgensen, J. L.0000-0002-0343-239X
Kelly, E. M.0000-0002-2233-3901
Lasue, J.0000-0001-9082-4457
Le Mouélic, S.0000-0001-5260-1367
Madariaga, J. M.0000-0002-1685-6335
Maurice, S.0000-0001-5702-8002
Merusi, M.0000-0003-0570-9177
Meslin, P.-Y.0000-0002-0703-3951
Million, C. C.0000-0003-2732-3486
Núñez, J. I.0000-0003-0930-6674
Ollila, A. M.0000-0003-0479-9465
Paar, G.0000-0003-3198-8640
Pedersen, D. A. K.0000-0001-7182-8567
Pilleri, P.0000-0003-4861-0476
Pilorget, C.0000-0002-7759-9854
Pinet, P. C.0000-0002-1933-5631
Royer, C.0000-0002-5472-7235
Sautter, V.0000-0002-4263-7558
Schulte, M.0000-0001-8141-2020
Sephton, M. A.0000-0002-2190-5402
Sharma, S. K.0000-0002-5676-7572
Sholes, S. F.0000-0003-4854-1191
Spanovich, N.0000-0002-9584-5043
St. Clair, M.0000-0002-7877-3148
Tate, C. D.0000-0003-3467-0099
Uckert, K.0000-0002-0859-5526
VanBommel, S. J.0000-0002-6565-0827
Yanchilina, A. G.0000-0003-3782-6343
Zorzano, M.-P.0000-0002-4492-9650
Additional Information:Funding: This effort was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). K.A.F., K.M.S., J.D.T., V.Z.S., Y.L., J.N.M., A.C.A., Y.G., P.A.W., E.L.C., S.M.Mi., R.C.M., S.F.S., N.S., and K.U. were supported by NASA grant 80NM0018D0004 through JPL. D.T.F. was supported by Australian Research Council grant DE210100205. E.F.G. was supported by Canadian Space Agency grant 21EXPCOI1. E.A.C. was supported by Canadian Space Agency grant 19PACOI0 and Natural Sciences and Engineering Research Council of Canada grant RGPIN-2021-02995. C.D.K.H., T.V.K., and M.E.S. were supported by Canadian Space Agency M2020 Participating Scientist grants. M.M. was supported by the EU’s Horizon 2020 research and innovation program under the Marie Skłodowska Curie grant 801199. G.P. was supported by ESA PRODEX Experiment Arrangement PEA 4000117520. V.D. was supported by Fonds pour la Recherche Scientifique. A.J.W., S.J.V., D.L.S., J.I.S., L.E.M., T.B., and E.M.H. were supported by NASA Mars 2020 Participating Scientist grants. T.B. was supported by the Simons Foundation Collaboration on the Origins of Life grant 327126. R.C.W. was supported by NASA Mars 2020 contracts NNH15AZ24I and NNH13ZDA018O for SuperCam and a LANL internal LDRD grant. S.K.S. was supported by JPL subcontract 1654163. S.G. was supported by the Royal Society Leverhulme Trust Senior Research Fellowship (SRF\R1\21000106) and the UK Space Agency Aurora program. M.-P.Z. was supported by the Spanish Ministry of Science and Innovation under grant PID2019-104205GB-C21. S.Si. was supported by the Swedish National Space Agency under contracts 137/19 and 2021-00092. K.B.K. was supported by the Carlsberg Foundation, grant CF19-0023. S.-E.H. was supported by the Research Council of Norway under grants 301238 and 309835. The work of O.B., A.C., O.F., L.M., N.M., C.Q.-N., P.B., K.B., B.C., E.C., E.D., T.F., J.L., S.L.M., S.M., P.-Y.M., P.P., C.P., P.C.P., C.R., and V.S. on Mars 2020 was supported by CNES. K.H.-L. was supported by a UK Space Agency Aurora Research Fellowship. M.A.S. was supported by UK Space Agency grants ST/V002732/1 and ST/V006134/1. J.F.B. was supported by NASA-JPL subcontract number 1511125. A.G.F. was supported by the European Research Council, Consolidator Grant 818602.
Group:Division of Geological and Planetary Sciences
Funding AgencyGrant Number
Australian Research CouncilDE210100205
Canadian Space Agency (CSA)21EXPCOI1
Canadian Space Agency (CSA)19PACOI0
Natural Sciences and Engineering Research Council of Canada (NSERC)RGPIN-2021-02995
Marie Curie Fellowship801199
European Space Agency (ESA)PEA 4000117520
Fonds de la Recherche Scientifique (FNRS)UNSPECIFIED
Simons Foundation327126
Los Alamos National LaboratoryUNSPECIFIED
Royal SocietySRF\R1\21000106
Ministerio de Ciencia e Innovación (MCINN)PID2019-104205GB-C21
Swedish National Space Agency137/19
Swedish National Space Agency2021-00092
Carlsberg FoundationCF19-0023
Research Council of Norway301238
Research Council of Norway309835
Centre National d'Études Spatiales (CNES)UNSPECIFIED
United Kingdom Space Agency (UKSA)ST/V002732/1
United Kingdom Space Agency (UKSA)ST/V006134/1
European Research Council (ERC)818602
Issue or Number:6614
Record Number:CaltechAUTHORS:20221212-615014000.1
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ID Code:118293
Deposited By: Research Services Depository
Deposited On:13 Dec 2022 00:14
Last Modified:13 Dec 2022 17:42

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