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

K.A. Farley; K.M. Stack; D.L. Shuster; B.H.N. Horgan; J.A. Hurowitz; J. D. Tarnas; J.I. Simon; V.Z. Sun; E.L. Scheller; K.R. Moore; S.M. McLennan; P.M. Vasconcelos; R. C. Wiens; A.H. Treiman; L.E. Mayhew; O. Beyssac; T.V. Kizovski; N. J. Tosca; K.H. Williford; L.S. Crumpler; L.W. Beegle; J.F. Bell III; B.L. Ehlmann; Y. Liu; J.N. Maki; M. E. Schmidt; A.C. Allwood; H.E.F. Amundsen; R. Ghartia; T. Bosak; A.J. Brown; B. C. Clark; A. Cousin; O. Forni; Travis S.J. Gabriel; Y. Goreva; S. Gupta; S.-E. Hamran; C.D.K. Herd; K. Hickman-Lewis; J.R. Johnson; L.C. Kah; P. B. Kelemen; K.B. Kinch; L. Mandon; N. Mangold; C. Quantun-Nataf; M.S. Rice; P.S. Russell; S. Sharma; S. Siljestroem; A. Steele; R. Sullivan; M. Wadhwa; B. P. Weiss; A.J. Williams; B.V. Wogsland; P.A. Willis; T.A. Acosta-Maeda; B. Peck; K. Benzerara; S. Bernard; A.S. Burton; E. L. Cardarelli; B. Chide; E. Clave; E.A. Cloutis; A.D. Czaja; V. Debaille; E. Dehouck; A.G. Fairen; D.T. Flannery; S.Z. Fleron; T. Fouchet; J. Frydenvang; B.J. Garczynski; E.F. Gibbons; E.M. Hausrath; A.G. Hayes; J. Henneke; J.L. Jorgensen; E.M. Kelly; J. Lasue; S. Le Mouelic; J. M. Madariaga; S. Maurice; M. Merusi; P. #NAME? Meslin; S.M. Milkovich; C.C. Million; R.C. Moeller; J.I. Nunez; A.M. Ollila; G. Paar; D.A. Paige; D.A.K. Pedersen; P. Pilleri; C. Pilorget; P.C. Pinet; J.W. Rice Jr.; C. Royer; V. Sautter; M. Schulte; M. A. Sephton; S.K. Sharma; S.F. Sholes; N. Spanovich; M. St. Clair; C.D. Tate; K. Uckert; S.J. VanBommel; A.G. Yanchilina; M. #NAME? Zorzano

doi:10.1126/science.abo2196

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

Science

By: K.A. Farley, K.M. Stack, D.L. Shuster, B.H.N. Horgan, J.A. Hurowitz, J. D. Tarnas, J.I. Simon, V.Z. Sun, E.L. Scheller, K.R. Moore, S.M. McLennan, P.M. Vasconcelos, R. C. Wiens, A.H. Treiman, L.E. Mayhew, O. Beyssac, T.V. Kizovski, N. J. Tosca, K.H. Williford, L.S. Crumpler, L.W. Beegle, J.F. Bell III, B.L. Ehlmann, Y. Liu, J.N. Maki, M. E. Schmidt, A.C. Allwood, H.E.F. Amundsen, R. Ghartia, T. Bosak, A.J. Brown, B. C. Clark, A. Cousin, O. Forni, Travis S.J. Gabriel, Y. Goreva, S. Gupta, S.-E. Hamran, C.D.K. Herd, K. Hickman-Lewis, J.R. Johnson, L.C. Kah, P. B. Kelemen, K.B. Kinch, L. Mandon, N. Mangold, C. Quantun-Nataf, M.S. Rice, P.S. Russell, S. Sharma, S. Siljestroem, A. Steele, R. Sullivan, M. Wadhwa, B. P. Weiss, A.J. Williams, B.V. Wogsland, P.A. Willis, T.A. Acosta-Maeda, B. Peck, K. Benzerara, S. Bernard, A.S. Burton, E. L. Cardarelli, B. Chide, E. Clave, E.A. Cloutis, A.D. Czaja, V. Debaille, E. Dehouck, A.G. Fairen, D.T. Flannery, S.Z. Fleron, T. Fouchet, J. Frydenvang, B.J. Garczynski, E.F. Gibbons, E.M. Hausrath, A.G. Hayes, J. Henneke, J.L. Jorgensen, E.M. Kelly, J. Lasue, S. Le Mouelic, J. M. Madariaga, S. Maurice, M. Merusi, P. #NAME? Meslin, S.M. Milkovich, C.C. Million, R.C. Moeller, J.I. Nunez, A.M. Ollila, G. Paar, D.A. Paige, D.A.K. Pedersen, P. Pilleri, C. Pilorget, P.C. Pinet, J.W. Rice Jr., C. Royer, V. Sautter, M. Schulte, M. A. Sephton, S.K. Sharma, S.F. Sholes, N. Spanovich, M. St. Clair, C.D. Tate, K. Uckert, S.J. VanBommel, A.G. Yanchilina, and M. #NAME? Zorzano

https://doi.org/10.1126/science.abo2196

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Abstract

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 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. Fe-Mg carbonates along grain boundaries indicate reactions with CO₂-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 were stored aboard Perseverance for potential return to Earth.

Suggested Citation

Farley, K., Stack, K., Shuster, D., Horgan, B., Hurowitz, J., Tarnas, J., Simon, J., Sun, V., Scheller, E., Moore, K., McLennan, S., Vasconcelos, P., Wiens, R.C., Treiman, A., Mayhew, L., Beyssac, O., Kizovski, T., Tosca, N.J., Williford, K., Crumpler, L., Beegle, L., Bell III, J., Ehlmann, B., Liu, Y., Maki, J., Schmidt, M.E., Allwood, A., Amundsen, H., Ghartia, R., Bosak, T., Brown, A., Clark, B., Cousin, A., Forni, O., Gabriel, T.S., Goreva, Y., Gupta, S., Hamran, S., Herd, C., Hickman-Lewis, K., Johnson, J., Kah, L., Kelemen, P.B., Kinch, K., Mandon, L., Mangold, N., Quantun-Nataf, C., Rice, M., Russell, P., Sharma, S., Siljestroem, S., Steele, A., Sullivan, R., Wadhwa, M., Weiss, B.P., Williams, A., Wogsland, B., Willis, P., Acosta-Maeda, T., Peck, B., Benzerara, K., Bernard, S., Burton, A., Cardarelli, E., Chide, B., Clave, E., Cloutis, E., Czaja, A., Debaille, V., Dehouck, E., Fairen, A., Flannery, D., Fleron, S., Fouchet, T., Frydenvang, J., Garczynski, B., Gibbons, E., Hausrath, E., Hayes, A., Henneke, J., Jorgensen, J., Kelly, E., Lasue, J., Le Mouelic, S., Madariaga, J., Maurice, S., Merusi, M., Meslin, P.#., Milkovich, S., Million, C., Moeller, R., Nunez, J., Ollila, A., Paar, G., Paige, D., Pedersen, D., Pilleri, P., Pilorget, C., Pinet, P., Rice Jr., J., Royer, C., Sautter, V., Schulte, M., Sephton, M., Sharma, S., Sholes, S., Spanovich, N., St. Clair, M., Tate, C., Uckert, K., VanBommel, S., Yanchilina, A., Zorzano, M.#., 2022, Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars: Science, v. 377, no. 6614, eabo2196, 12 p., https://doi.org/10.1126/science.abo2196.

Additional publication details
Publication type	Article
Publication Subtype	Journal Article
Title	Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars
Series title	Science
DOI	10.1126/science.abo2196
Volume	377
Issue	6614
Year Published	2022
Language	English
Publisher	American Association for the Advancement of Science
Contributing office(s)	Astrogeology Science Center
Description	eabo2196, 12 p.
Other Geospatial	Jezero crater, Mars