| Title: |
LITHOFACIES, FLOW DIRECTIONS, AND PRELIMINARY DEPOSITIONAL INTERPRETATIONS OF LEDGE-FORMING SANDSTONES AT ALAGNAK, JEZERO CRATER, MARS |
| Authors: |
Ives, Libby, R.W.; Stack‐Morgan, Katie, M.; Barnes, Robert; Gupta, Sanjeev; Caravaca, Gwénaël; Russell, Patrick; Annex, Andrew M. |
| Contributors: |
Jet Propulsion Laboratory (JPL); NASA-California Institute of Technology (CALTECH); 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); 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); Department of Earth, Planetary and Space Sciences Los Angeles (EPSS); University of California Los Angeles (UCLA); University of California (UC)-University of California (UC); Caltech Division of Geological and Planetary Sciences; California Institute of Technology (CALTECH); Lunar and Planetary Institute |
| Source: |
54th Lunar and Planetary Science Conference; https://hal.science/hal-04051962; 54th Lunar and Planetary Science Conference, Lunar and Planetary Institute, Mar 2023, The Woodlands (Texas), United States. pp.2556; https://www.hou.usra.edu/meetings/lpsc2023/ |
| Publisher Information: |
CCSD |
| Publication Year: |
2023 |
| Collection: |
Université Toulouse III - Paul Sabatier: HAL-UPS |
| Subject Terms: |
mars; Mars 2020; Jezero crater; sedimentology; stratigraphy; Alagnak; [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 |
| Subject Geographic: |
The Woodlands (Texas); United States |
| Description: |
International audience ; The Mars 2020 Perseverance rover is exploring a sedimentary deposit interpreted to be theremnants of a delta within Jezero crater, a 45 km diameter Late Noachian-aged crater. During itsexploration of the “lower delta” exposure of the western delta/fan in Jezero crater, Mars (Fig. 1), Perseveranceacquired image and composition data from Alagnak, a ~2 m thick, well-exposed outcrop of clastic sedimentaryrock located at Cape Nukshak (Fig. 1).This outcrop was thoroughly documented from multiple angles at a cm-scale by the Mastcam-Z camerasystem [1] and the Supercam Remote Micro-Imager (RMI) [2] on the Perseverance rover. Dip and strikemeasurements of sedimentary beds were collected from 3D reconstructions of Mastcam-Z stereo-imagescollected using the Planetary Robotics software tools PRoViP and PRo3D [3].In this study, we examine the physical sedimentology and stratigraphic context of the Alagnakoutcrop. The preliminary depositional interpretation of Alagnak is as a prograding, subaqueous fan builtthrough the deposition of many, meter-scale, gravity driven, sediment-rich flows. Flow directions rangedbetween NNE and SW, with principal directions toward SE and E. |
| Document Type: |
conference object |
| Language: |
English |
| Relation: |
BIBCODE: 2023LPICo2806.2556I |
| Availability: |
https://hal.science/hal-04051962; https://hal.science/hal-04051962v1/document; https://hal.science/hal-04051962v1/file/2556.pdf |
| Rights: |
info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.1D760ED8 |
| Database: |
BASE |