التفاصيل البيبلوغرافية
| العنوان: |
Sedimentary architecture of the delta front at Jezero crater, Mars |
| المؤلفون: |
Mangold, Nicolas, Gupta, Sanjeev, Caravaca, Gwénaël, Dromart, Gilles, Gasnault, Olivier, Le Mouélic, Stéphane, Quantin-Nataf, Cathy, Horgan, Briony, Bell, Jim F., Beyssac, Olivier, Maurice, Sylvestre, Núñez, Jorge, Shuster, David L., Stack‐Morgan, Katie, M., Weiss, Benjamin P., Wiens, Roger, C |
| المساهمون: |
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 Science and Engineering Imperial College London, Imperial College London, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS), 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), Purdue University West Lafayette, 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), Johns Hopkins University Applied Physics Laboratory Laurel, MD (APL), Berkeley Geochronology Center (BGC), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Department of Earth, Atmospheric and Planetary Sciences MIT, Cambridge (EAPS), Massachusetts Institute of Technology (MIT) |
| المصدر: |
International Conference on Fluvial Sedimentology 2023 ; https://hal.science/hal-04052771 ; International Conference on Fluvial Sedimentology 2023, Jul 2023, Riva Del Garda, Italy ; https://www.icfs2023.it/ |
| بيانات النشر: |
HAL CCSD |
| سنة النشر: |
2023 |
| المجموعة: |
Aix-Marseille Université: HAL |
| مصطلحات موضوعية: |
Mars, mars2020, jezero crater, Perseverance, delta, delta front, sedimentology sedimentary architecture, [SDU]Sciences of the Universe [physics], [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
| جغرافية الموضوع: |
Riva Del Garda, Italy |
| الوصف: |
International audience ; The Perseverance rover landed on the floor of Jezero crater in February 2021, a site selected thanks to the presence of fluvial valleys, sedimentary fans and astrobiologically-relevant minerals (phyllosilicates, carbonates). Images obtained along the rover traverse by the Mastcam-Z camera and the SuperCam instrument provide in-situ observations of scarps along the western fan and the residual butte Kodiak. These images display a variety of facies consistent with a deltaic architecture: Close to the base of scarps of the butte Kodiak, subhorizontal, fine-grained layers are interpreted as bottomsets transitioning progressively into steeply inclined (up to 35°) planar beds interpreted as foresets. Above foresets, sandstones and pebbly sandstones display cross-bedding and local channelization as observed in fluvial deposits, interpreted as topsets on the deltaic plain. The transition from foresets to topsets display varying elevations (from -2510 to -2580 m below datum) suggestive of fluctuating lake levels in a closed lake system. Boulder-rich conglomerates are observed toward the top of scarps. They display a clast-supported texture with imbricated, rounded cobbles and ~1 m thick beds with fining upward sequence consistent with accretion of fluvial bars from high-energy floods of still undetermined origin (e.g., glacial dam break, rapid snowmelt). The persistence of a lake during these flood events is currently unknown. The overall architecture and presence of flood deposits suggest a building of the fan in relatively short period at geological scale in agreement with estimations made in the past (hundreds to thousands of years). |
| نوع الوثيقة: |
conference object |
| اللغة: |
English |
| الاتاحة: |
https://hal.science/hal-04052771 |
| رقم الانضمام: |
edsbas.2A872C03 |
| قاعدة البيانات: |
BASE |