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Stratigraphic relationships in Jezero crater, Mars: Constraints on the timing of fluvial-lacustrine activity from orbital observations

Holm-Alwmark, Sanna and Kinch, K. and Hansen, M.D. and Shahrzad, S. and Svennevig, K. and Abbey, W.J. and Anderson, R B and Calef, Fred and Gupta, S. and Hauber, Ernst and Horgan, Briony H. and Kah, L. C. and Knade, Julius and Miklusicak, N.B. and Stack, K M and Sun, V.Z. and Tarnas, J.D. and Quantin-Nataf, C. (2021) Stratigraphic relationships in Jezero crater, Mars: Constraints on the timing of fluvial-lacustrine activity from orbital observations. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 126, e2021JE006840. Wiley. doi: 10.1029/2021JE006840. ISSN 2169-9097.

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Official URL: https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2021JE006840

Abstract

On February 18, 2021 NASA's Perseverance rover landed in Jezero crater on Mars. In the past, the crater was filled with water, forming a lake, and in the western part of the crater an ancient delta is preserved. Part of the present-day crater floor has been interpreted to represent a lava flow that was deposited after the lake dried out, meaning that the floor unit would be younger than the western delta. In order to understand how the Jezero crater lake has developed over time, including the potential timeline and environments of habitability, it is necessary to work out the relations between the geologic units in Jezero crater. In this work, we have analyzed orbital images of Jezero crater and reveal how the crater floor and delta deposits relate to each other in time. Our results show that at least some of the deltaic deposits in Jezero overlie the youngest crater floor unit(s). It is therefore possible to learn broadly when fluvial activity in the crater has been effective from the age of the crater floor. Our work presents hypotheses that can be tested by Perseverance to advance our knowledge of how the area has evolved geologically over time.

Item URL in elib:https://elib.dlr.de/143146/
Document Type:Article
Title:Stratigraphic relationships in Jezero crater, Mars: Constraints on the timing of fluvial-lacustrine activity from orbital observations
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Holm-Alwmark, SannaNiels Bohr Institute, University of Copenhagen, Copenhagen, Denmarkhttps://orcid.org/0000-0002-0146-9324
Kinch, K.Niels Bohr Institute, University of Copenhagen, Copenhagen, DenmarkUNSPECIFIED
Hansen, M.D.Niels Bohr Institute, University of Copenhagen, Copenhagen, DenmarkUNSPECIFIED
Shahrzad, S.School of Earth and Environment, University of Leeds, Leeds, UKUNSPECIFIED
Svennevig, K.Geological Survey of Denmark and Greenland, Copenhagen, Denmarkhttps://orcid.org/0000-0003-3863-8096
Abbey, W.J.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Anderson, R BU.S. Geological Survey, Astrogeology Center, Flagstaff, AZ, USAhttps://orcid.org/0000-0003-4465-2871
Calef, FredJet Propulsion Laboratory, California Institute of Technology, Pasadena, USAUNSPECIFIED
Gupta, S.Imperial College of Science, Technology and Medicine, UKUNSPECIFIED
Hauber, ErnstErnst.Hauber (at) dlr.dehttps://orcid.org/0000-0002-1375-304X
Horgan, Briony H.Department of Astronomy, Space Sciences Building, Cornell University, Ithaca, NY 14853, USAUNSPECIFIED
Kah, L. C.Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996-1410, USAUNSPECIFIED
Knade, JuliusGerman Aerospace Center, Institute of Planetary Research, Berlin, GermanyUNSPECIFIED
Miklusicak, N.B.Department of Earth and Planetary Sciences, University of Tennessee-Knoxville, Knoxville, TN, USAUNSPECIFIED
Stack, K MJPL, Caltech, Pasadena, USAUNSPECIFIED
Sun, V.Z.JPL, Caltech, Pasadena, USAUNSPECIFIED
Tarnas, J.D.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Quantin-Nataf, C.Laboratoire Géologie de Lyon, La Doua, Université Claude Bernard LyonUNSPECIFIED
Date:June 2021
Journal or Publication Title:JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:126
DOI :10.1029/2021JE006840
Page Range:e2021JE006840
Publisher:Wiley
ISSN:2169-9097
Status:Published
Keywords:Mars, stratigraphy, delta, sedimentology, rover, Mars 2020, HRSC
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - ExoMars PanCam / MARS2020, R - Project Mars Express HRSC
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Hauber, Ernst
Deposited On:03 Aug 2021 08:19
Last Modified:19 Nov 2021 20:31

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