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Communication Dans Un Congrès Année : 2024

Reconstructing the Sedimentology and Depositional Setting of the Margin Unit, Jezero Crater

Briony H. N. Horgan
Gerhard Paar
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  • PersonId : 1123755
Kathryn Stack
Justin Maki
Justin I Simon
Nicole Schmitz
Adrian J. Brown
  • Fonction : Auteur
  • PersonId : 1181903

Résumé

The Margin Unit of Jezero crater is an olivine- and carbonate-rich geologic unit stratigraphically underlying the Jezero Western fan, tracing the inner margin of the western crater rim, and is of significant astrobiological interest [1]. However, the origin of the Margin Unit is uncertain. The distribution of the unit around the inner margin of the crater rim and its strong orbital carbonate signature led to one interpretation of the Margin Unit as a lake shore precipitate [1] either coeval with, or predating, the Western fan [2]. Alternate hypotheses include fluviolacustrine or aeolian [3], or part of a regional carbonatized lava flow or pyroclastic deposit [4-6]. Here, we report on Perseverance rover observations of the sedimentology and 3D architecture of the Margin Unit explored between sols 910 – 1028, with the objective of characterizing the unit and understanding its emplacement/depositional processes.
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Dates et versions

hal-04442900 , version 1 (06-02-2024)

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  • HAL Id : hal-04442900 , version 1

Citer

Alex J. Jones, Sanjeev Gupta, Robert Barnes, Briony H. N. Horgan, Gerhard Paar, et al.. Reconstructing the Sedimentology and Depositional Setting of the Margin Unit, Jezero Crater. 55th Lunar and Planetary Science Conference, Lunar and Planetary Institute, Mar 2024, The Woodlands (Texas), United States. pp.1994. ⟨hal-04442900⟩
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