Orbital images indicate that this crater hosted a lake with two major inlet channels and one outlet channel, suggested to be fluvially active as early as the late Noachian period ( 2). Jezero is located (18.4°N, 77.5☎) near the western edge of Isidis Planitia and east of Nili Fossae in Noachian terrain. Jezero crater was selected as the landing site of the Perseverance rover based on strong astrobiological potential and attributes important for sample return ( 1). Orbital observations link the Jezero floor lithology to the broader Nili-Syrtis region, suggesting that density-driven compositional stratification is a regional characteristic. Alteration materials including carbonates, sulfates, perchlorates, hydrated silicates, and iron oxides are pervasive but low in abundance, suggesting relatively brief lacustrine conditions. This is the first martian cumulate and shows similarities to martian meteorites, which also express olivine disequilibrium. The lowest observed unit has the highest inferred density and is olivine-rich with coarse (1.5 millimeters) euhedral, relatively unweathered grains, suggesting a cumulate origin. Stratigraphically lower, layered rocks are richer in normative pyroxene. The dominant lithology along the traverse is basaltic, with plagioclase enrichment in stratigraphically higher locations. SuperCam observations in the first 286 Mars days on Mars revealed a volcanic and intrusive terrain with compositional and density stratification. Farley, and The SuperCam Team Show Fewerīefore Perseverance, Jezero crater’s floor was variably hypothesized to have a lacustrine, lava, volcanic airfall, or aeolian origin. Stott, Jesse Tarnas, Nathalie Turenne, Marco Veneranda, David S. Hausrath, Xavier Jacob, Hemani Kalucha, Evan Kelly, Elise Knutsen, Nina Lanza, Javier Laserna, Jeremie Lasue, Stéphane Le Mouélic, Richard Leveille, Guillermo Lopez Reyes, Ralph Lorenz, Jose Antonio Manrique, Jesus Martinez-Frias, Tim McConnochie, Noureddine Melikechi, David Mimoun, Franck Montmessin, Javier Moros, Naomi Murdoch, Paolo Pilleri, Cedric Pilorget, Patrick Pinet, William Rapin, Fernando Rull, Susanne Schröder, David L. Michael Angel, Gorka Arana, Pierre Beck, Sylvain Bernard, Tanguy Bertrand, Bruno Bousquet, Kepa Castro, Baptiste Chide, Elise Clavé, Ed Cloutis, Stephanie Connell, Erwin Dehouck, Gilles Dromart, Woodward Fischer, Thierry Fouchet, Raymond Francis, Jens Frydenvang, Olivier Gasnault, Erin Gibbons, Sanjeev Gupta, Elisabeth M. Ollila, Francois Poulet, Clement Royer, Shiv K. Horgan, Linda Kah, Carey LegettIV, Juan Manuel Madariaga, Pierre-Yves Meslin, Ann M. Gabriel, Patrick Gasda, James Hall, Briony H. Johnson, Lisa Mayhew, Sylvestre Maurice, Ryan B. McLennan, Violaine Sautter, Adrian Brown, Karim Benzerara, Jeffrey R. Wiens, Arya Udry, Olivier Beyssac, Cathy Quantin-Nataf, Nicolas Mangold, Agnès Cousin, Lucia Mandon, … Show All …, Tanja Bosak, Olivier Forni, Scott M.
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