| Title: |
Sedimentology and Stratigraphy of the Shenandoah Formation, Western Fan, Jezero Crater, Mars |
| Authors: |
Stack, Kathryn, M; Ives, Libby, R W; Gupta, Sanjeev; Lamb, Michael, P; Tebolt, Michelle; Caravaca, Gwénaël; Grotzinger, John, P; Russell, Patrick; Shuster, David, L; Williams, Amy, J; Amundsen, Hans; Alwmark, Sanna; Annex, Andrew, M; Barnes, Robert; Bell, James; Beyssac, O.; Bosak, Tanja; Crumpler, Larry, S; Dehouck, Erwin; Gwizd, Samantha, J; Hickman‐lewis, Keyron; Horgan, Briony, H N; Hurowitz, Joel; Kalucha, Hemani; Kanine, Oak; Lesh, Connor; Maki, Justin; Mangold, N.; Randazzo, Nicolas; Seeger, Christina; Williams, Rebecca, M E; Brown, Adrian; Cardarelli, Emily; Dypvik, H.; Flannery, David; Frydenvang, Jens; Hamran, S.‐E.; Núñez, Jorge, I; Paige, David; Simon, Justin, I; Tice, Michael, M; Tate, Christian; Wiens, Roger, C |
| Contributors: |
Jet Propulsion Laboratory (JPL); NASA-California Institute of Technology (CALTECH); Stanford University; Department of Earth Science and Engineering Imperial College London; Imperial College London; California Institute of Technology (CALTECH); Jackson School of Geosciences (JSG); University of Texas at Austin Austin; Institut de recherche en astrophysique et planétologie (IRAP); Université Toulouse III - Paul Sabatier (UT3); Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Communauté d'universités et établissements de Toulouse (Comue de Toulouse)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS); Caltech Division of Geological and Planetary Sciences; Institut d'Astrophysique de Paris (IAP); Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Department of Earth and Planetary Science UC Berkeley (EPS); University of California Berkeley (UC Berkeley); University of California (UC)-University of California (UC); Department of Geological Sciences Gainesville (UF|Geological); University of Florida Gainesville (UF); Physics of Geological Processes Oslo (PGP); Department of Physics Oslo; Faculty of Mathematics and Natural Sciences Oslo; University of Oslo (UiO)-University of Oslo (UiO)-Faculty of Mathematics and Natural Sciences Oslo; University of Oslo (UiO)-University of Oslo (UiO)-Department of Geosciences Oslo; University of Oslo (UiO)-University of Oslo (UiO); Skane University Hospital Lund; IT University of Copenhagen (ITU); ASU School of Earth and Space Exploration (SESE); Arizona State University Tempe (ASU); Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC); Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement IRD : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Department of Earth, Atmospheric and Planetary Sciences MIT, Cambridge (EAPS); Massachusetts Institute of Technology (MIT); New Mexico Museum of Natural History and Science (NMMNHS); Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE); École normale supérieure de Lyon (ENS de Lyon); Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS); The Natural History Museum London (NHM); Dipartimento di Scienze Biologiche, Geologiche e Ambientali Bologna; Alma Mater Studiorum Università di Bologna = University of Bologna Bologne (UNIBO); Department of Earth, Atmospheric, and Planetary Sciences West Lafayette (EAPS); Purdue University West Lafayette; Department of Geosciences Stony Brook; Stony Brook University SUNY (SBU); State University of New York (SUNY)-State University of New York (SUNY); University of California Los Angeles (UCLA); University of California (UC); Laboratoire de Planétologie et Géosciences UMR_C 6112 (LPG); Le Mans Université (UM)-Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST); Nantes Université - pôle Sciences et technologie; Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie; Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ); Department of Earth, Ocean and Atmospheric Sciences Vancouver (UBC EOAS); University of British Columbia Canada (UBC); Planetary Science Institute Tucson (PSI); Plancius Research LLC; University of Oslo (UiO); Queensland University of Technology Brisbane (QUT); Københavns Universitet = University of Copenhagen = Université de Copenhague (UCPH); Johns Hopkins University Applied Physics Laboratory Laurel, MD (APL); NASA Johnson Space Center (JSC); NASA; Texas A&M University College Station; Cornell University Ithaca (CU) |
| Source: |
ISSN: 2169-9097. |
| Publisher Information: |
CCSD; Wiley-Blackwell |
| Publication Year: |
2024 |
| Collection: |
Université Toulouse III - Paul Sabatier: HAL-UPS |
| Subject Terms: |
Mars; mars 2020; jezero crater; shenandoah formation; delta; perseverance; paleoenvironment; [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]; [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
| Description: |
International audience ; Abstract Sedimentary fans are key targets of exploration on Mars because they record the history of surface aqueous activity and habitability. The sedimentary fan extending from the Neretva Vallis breach of Jezero crater's western rim is one of the Mars 2020 Perseverance rover's main exploration targets. Perseverance spent ∼250 sols exploring and collecting seven rock cores from the lower ∼25 m of sedimentary rock exposed within the fan's eastern scarp, a sequence informally named the “Shenandoah” formation. This study describes the sedimentology and stratigraphy of the Shenandoah formation at two areas, “Cape Nukshak” and “Hawksbill Gap,” including a characterization, interpretation, and depositional framework for the facies that comprise it. The five main facies of the Shenandoah formation include: laminated mudstone, laminated sandstone, low‐angle cross stratified sandstone, thin‐bedded granule sandstone, and thick‐bedded granule‐pebble sandstone and conglomerate. These facies are organized into three facies associations (FA): FA1, comprised of laminated and soft sediment‐deformed sandstone interbedded with broad, unconfined coarser‐grained granule and pebbly sandstone intervals; FA2, comprised predominantly of laterally extensive, soft‐sediment deformed laminated, sulfate‐bearing mudstone with lenses of low‐angle cross‐stratified and scoured sandstone; and FA3, comprised of dipping planar, thin‐bedded sand‐gravel couplets. The depositional model favored for the Shenandoah formation involves the transition from a sand‐dominated distal alluvial fan setting (FA1) to a stable, widespread saline lake (FA2), followed by the progradation of a river delta system (FA3) into the lake basin. This sequence records the initiation of a relatively long‐lived, habitable lacustrine and deltaic environment within Jezero crater. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1029/2023je008187 |
| Availability: |
https://hal.science/hal-04521140; https://hal.science/hal-04521140v1/document; https://hal.science/hal-04521140v1/file/JGR%20Planets%20-%202024%20-%20Stack%20-%20Sedimentology%20and%20Stratigraphy%20of%20the%20Shenandoah%20Formation%20%20Western%20Fan%20%20Jezero%20Crater%20%20Mars.pdf; https://doi.org/10.1029/2023je008187 |
| Rights: |
https://creativecommons.org/licenses/by-nc/4.0/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.9CC6916 |
| Database: |
BASE |