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

  • Y. Liu
  • , M. M. Tice
  • , M. E. Schmidt
  • , A. H. Treiman
  • , T. V. Kizovski
  • , J. A. Hurowitz
  • , A. C. Allwood
  • , J. Henneke
  • , D. A.K. Pedersen
  • , S. J. VanBommel
  • , M. W.M. Jones
  • , A. L. Knight
  • , B. J. Orenstein
  • , B. C. Clark
  • , W. T. Elam
  • , C. M. Heirwegh
  • , T. Barber
  • , L. W. Beegle
  • , K. Benzerara
  • , S. Bernard
  • O. Beyssac, T. Bosak, A. J. Brown, E. L. Cardarelli, D. C. Catling, J. R. Christian, E. A. Cloutis, B. A. Cohen, S. Davidoff, A. G. Fairén, K. A. Farley, D. T. Flannery, A. Galvin, J. P. Grotzinger, S. Gupta, J. Hall, C. D.K. Herd, K. Hickman-Lewis, R. P. Hodyss, B. H.N. Horgan, J. R. Johnson, J. L. Jørgensen, L. C. Kah, J. N. Maki, L. Mandon, N. Mangold, F. M. McCubbin, S. M. McLennan, K. Moore, M. Nachon, P. Nemere, L. D. Nothdurft, J. I. Núñez, L. O’Neil, C. M. Quantin-Nataf, V. Sautter, D. L. Shuster, K. L. Siebach, J. I. Simon, K. P. Sinclair, K. M. Stack, A. Steele, J. D. Tarnas, N. J. Tosca, K. Uckert, A. Udry, L. A. Wade, B. P. Weiss, R. C. Wiens, K. H. Williford, M. P. Zorzano
  • California Institute of Technology
  • Texas A&M University
  • Brock University
  • Universities Space Research Association
  • Technical University of Denmark
  • Washington University St. Louis
  • Queensland University of Technology
  • Space Science Institute
  • University of Washington
  • Sorbonne Université
  • Massachusetts Institute of Technology
  • Plancius Research
  • University of Winnipeg
  • NASA Goddard Space Flight Center
  • CSIC
  • Cornell University
  • Imperial College London
  • University of Alberta
  • The Natural History Museum, London
  • University of Bologna
  • Purdue University
  • Johns Hopkins University Applied Physics Laboratory
  • University of Tennessee
  • Université PSL
  • Nantes Université
  • NASA Johnson Space Center
  • Stony Brook University
  • Université Lyon
  • University of California at Berkeley
  • Rice University
  • Carnegie Institution of Washington
  • University of Cambridge
  • University of Nevada, Las Vegas
  • Los Alamos National Laboratory
  • Blue Marble Space Institute of Science

Research output: Contribution to journalArticlepeer-review

121 Scopus citations

Abstract

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 investigated 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 found 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 multistage cooling of a thick magma body.

Original languageEnglish
Pages (from-to)1513-1519
Number of pages7
JournalScience
Volume377
Issue number6614
DOIs
StatePublished - Sep 30 2022

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