CHEMOSTRATIGRAPHY AND MINERALOGY OF THE JEZERO WESTERN FAN AS SEEN BY THE SUPERCAM INSTRUMENT: EVIDENCE FOR A COMPLEX AQUEOUS HISTORY AND VARIABLE ALTERATION CONDITIONS - Tout INSP Accéder directement au contenu
Communication Dans Un Congrès Année : 2024

CHEMOSTRATIGRAPHY AND MINERALOGY OF THE JEZERO WESTERN FAN AS SEEN BY THE SUPERCAM INSTRUMENT: EVIDENCE FOR A COMPLEX AQUEOUS HISTORY AND VARIABLE ALTERATION CONDITIONS

1 LGL-TPE - Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement
2 IRAP - Institut de recherche en astrophysique et planétologie
3 IPAG - Institut de Planétologie et d'Astrophysique de Grenoble
4 LPG - Laboratoire de Planétologie et Géosciences [UMR_C 6112]
5 IMPMC - Institut de minéralogie, de physique des matériaux et de cosmochimie
6 PLANETO - LATMOS
7 DLR Institute of Optical Sensor Systems
8 APL - Johns Hopkins University Applied Physics Laboratory [Laurel, MD]
9 IAS - Institut d'astrophysique spatiale
10 Department of Geoscience [Las Vegas]
11 UVa - Universidad de Valladolid [Valladolid]
12 EAPS - Department of Earth, Atmospheric, and Planetary Sciences [West Lafayette]
13 JPL - Jet Propulsion Laboratory
14 US Geological Survey [Flagstaff]
15 IMPMC_ROCKS - Research On Carbon-rich Key Samples [IMPMC]
16 EAPS - Department of Earth, Atmospheric and Planetary Sciences [MIT, Cambridge]
17 UPV/EHU - Universidad del Pais Vasco / Euskal Herriko Unibertsitatea [Espagne]
18 LANL - Los Alamos National Laboratory
19 CALTECH - California Institute of Technology
20 Pôle Planétologie du LESIA
21 UCPH - University of Copenhagen = Københavns Universitet
22 USGS - United States Geological Survey
23 McGill University = Université McGill [Montréal, Canada]
24 SBU - Stony Brook University [SUNY]
25 Department of Analytical Chemistry [Leioa]
26 Texas A&M University [College Station]
27 IUF - Institut universitaire de France
28 SESE - School of Earth and Space Exploration [Tempe]
29 EPSS - Department of Earth, Planetary and Space Sciences [Los Angeles]
30 DLR Institut für Optische Sensorsyteme
31 BGC - Berkeley Geochronology Center
32 Rice University [Houston]
33 JSC - NASA Johnson Space Center
34 UF|Geological - Department of Geological Sciences [Gainesville]
Clément Royer
  • Fonction : Auteur
Elise Clavé
  • Fonction : Auteur
  • PersonId : 1388555
François Poulet
  • Fonction : Auteur
  • PersonId : 880383
Arya Udry
Kathryn M. Stack
Ryan B. Anderson
  • Fonction : Auteur
  • PersonId : 1134357
Sylvain Bernard
Thierry Fouchet
Travis Gabriel
Patrick J. Gasda
Joel A. Hurowitz
  • Fonction : Auteur
  • PersonId : 1308361
Hemani Kalucha
Justin I Simon
The Supercam Team
  • Fonction : Auteur

Résumé

In February 2021, the Perseverance rover landed in Jezero crater. The crater floor was found to be composed of lava flows and cumulate rocks that have undergone some limited aqueous alteration; however, it is not clear whether this alteration is related to the lacustrine phase of the crater [1-7]. After completing its exploration of these igneous units, Perseverance drove towards the sedimentary fan located at the mouth of Neretva Vallis, a river valley that incised the western rim of the crater [8]. Between April and December 2022, the rover investigated the basal layers of the fan in two areas named Cape Nukshak and Hawksbill Gap, which are ~400 m apart [9]. After building a contingency cache for Mars Sample Return in a flat area adjacent to the fan [10], Perseverance climbed onto and explored the upper surface of the fan from February to September 2023. Here, we present a synthetic view of the chemostratigraphy and mineralogy of the fan based on data collected throughout the traverse by the SuperCam instrument suite. We show that the fan records a strong compositional diversity, which in turn reflects a complex aqueous history and variable alteration conditions.
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Dates et versions

hal-04650266 , version 1 (16-07-2024)

Identifiants

  • HAL Id : hal-04650266 , version 1

Citer

Erwin Dehouck, Olivier Forni, Cathy Quantin-Nataf, Pierre Beck, Nicolas Mangold, et al.. CHEMOSTRATIGRAPHY AND MINERALOGY OF THE JEZERO WESTERN FAN AS SEEN BY THE SUPERCAM INSTRUMENT: EVIDENCE FOR A COMPLEX AQUEOUS HISTORY AND VARIABLE ALTERATION CONDITIONS. Tenth International Conference on Mars 2024, Lunar and Planetary Institute, Jul 2024, Pasadena (California), United States. pp.3364. ⟨hal-04650266⟩
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