OVERVIEW OF THE BEDROCK GEOCHEMISTRY AND MINERALOGY OBSERVED BY SUPERCAM DURING PERSEVERANCE'S DELTA FRONT CAMPAIGN
Erwin Dehouck
(1)
,
Olivier Forni
(2)
,
Cathy Quantin-Nataf
(1)
,
Pierre Beck
(3)
,
Nicolas Mangold
(4)
,
Clément Royer
(5)
,
Elise Clavé
(6)
,
Olivier Beyssac
(7)
,
Jeffrey R. Johnson
(8)
,
Lucia Mandon
(9)
,
François Poulet
(10)
,
Stéphane Le Mouélic
(4)
,
Gwénaël Caravaca
(2)
,
Hemani Kalucha
(11)
,
Erin Gibbons
(12)
,
Gilles Dromart
(1)
,
Patrick J Gasda
(13)
,
Pierre-Yves Meslin
(2)
,
Susanne Schroeder
(14)
,
Arya Udry
(15)
,
Ryan B. Anderson
(16)
,
Samuel M. Clegg
(13)
,
Agnès Cousin
(2)
,
Travis Gabriel
(17)
,
Jérémie Lasue
(2)
,
Thierry Fouchet
(18)
,
Paolo Pilleri
(2)
,
Cédric Pilorget
(10)
,
Joel A. Hurowitz
(19)
,
Jorge Núñez
(8)
,
Amy J. Williams
(20)
,
Patrick Russell
(21)
,
Justin I. Simon
(22)
,
Sylvestre Maurice
(2)
,
Roger C Wiens
(5)
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 Department of Earth, Atmospheric, and Planetary Sciences, Purdue University
6 CELIA - Centre d'Etudes Lasers Intenses et Applications
7 IMPMC - Institut de minéralogie, de physique des matériaux et de cosmochimie
8 APL - Johns Hopkins University Applied Physics Laboratory [Laurel, MD]
9 Division of Geological and Planetary Sciences [Pasadena]
10 IAS - Institut d'astrophysique spatiale
11 CALTECH - California Institute of Technology
12 McGill University = Université McGill [Montréal, Canada]
13 LANL - Los Alamos National Laboratory
14 DLR - Deutsches Zentrum für Luft- und Raumfahrt [Berlin]
15 WGU Nevada - University of Nevada [Las Vegas]
16 US Geological Survey [Flagstaff]
17 USGS - United States Geological Survey
18 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics
19 SBU - Stony Brook University [SUNY]
20 UF|Geological - Department of Geological Sciences [Gainesville]
21 EPSS - Department of Earth, Planetary and Space Sciences [Los Angeles]
22 JSC - NASA Johnson Space Center
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 Department of Earth, Atmospheric, and Planetary Sciences, Purdue University
6 CELIA - Centre d'Etudes Lasers Intenses et Applications
7 IMPMC - Institut de minéralogie, de physique des matériaux et de cosmochimie
8 APL - Johns Hopkins University Applied Physics Laboratory [Laurel, MD]
9 Division of Geological and Planetary Sciences [Pasadena]
10 IAS - Institut d'astrophysique spatiale
11 CALTECH - California Institute of Technology
12 McGill University = Université McGill [Montréal, Canada]
13 LANL - Los Alamos National Laboratory
14 DLR - Deutsches Zentrum für Luft- und Raumfahrt [Berlin]
15 WGU Nevada - University of Nevada [Las Vegas]
16 US Geological Survey [Flagstaff]
17 USGS - United States Geological Survey
18 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics
19 SBU - Stony Brook University [SUNY]
20 UF|Geological - Department of Geological Sciences [Gainesville]
21 EPSS - Department of Earth, Planetary and Space Sciences [Los Angeles]
22 JSC - NASA Johnson Space Center
Erwin Dehouck
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Olivier Forni
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Cathy Quantin-Nataf
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Pierre Beck
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Nicolas Mangold
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Clément Royer
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Olivier Beyssac
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Lucia Mandon
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Stéphane Le Mouélic
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Gwénaël Caravaca
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Gilles Dromart
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Patrick J Gasda
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Pierre-Yves Meslin
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Agnès Cousin
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Travis Gabriel
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Jérémie Lasue
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Paolo Pilleri
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Cédric Pilorget
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Amy J. Williams
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Patrick Russell
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Sylvestre Maurice
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Roger C Wiens
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Abstract
In February 2021, the Perseverance rover landed in Jezero crater, Mars. The crater floor was found to be composed of lava flows and cumulate rocks [1-5]. These magmatic rocks appear to have undergone some limited aqueous alteration; however, it is not clear whether this alteration is related to the lacustrine phase of the crater [1,3,6,7].
After completing its exploration of the crater floor, Perseverance reached the foot of the Jezero western fan in late April 2022 (sol ~422). Long-distance images acquired earlier in the mission had already confirmed the deltaic nature of the fan [8], which had long been suspected from orbital observations [9,10]. Between April and December 2022, Perseverance investigated the basal layers of the delta at two locations named Hawksbill Gap and Cape Nukshak, which are ~400 m apart [11]. Here, we present an overview of the geo-chemistry and mineralogy of the delta rocks as observed by SuperCam, and show that these rocks record a diver-sity of past aqueous alteration environments.
Origin : Publisher files allowed on an open archive