| Literature DB >> 33568875 |
Kathryn M Stack1, Nathan R Williams1, Fred Calef1, Vivian Z Sun1, Kenneth H Williford1, Kenneth A Farley2, Sigurd Eide3, David Flannery4, Cory Hughes5, Samantha R Jacob6, Linda C Kah7, Forrest Meyen8, Antonio Molina9, Cathy Quantin Nataf10, Melissa Rice4, Patrick Russell11, Eva Scheller2, Christina H Seeger5, William J Abbey1, Jacob B Adler12, Hans Amundsen13, Ryan B Anderson14, Stanley M Angel15, Gorka Arana16, James Atkins7, Megan Barrington17, Tor Berger18, Rose Borden7, Beau Boring7, Adrian Brown19, Brandi L Carrier1, Pamela Conrad20, Henning Dypvik3, Sarah A Fagents21, Zachary E Gallegos22, Brad Garczynski23, Keenan Golder7, Felipe Gomez9, Yulia Goreva1, Sanjeev Gupta24, Svein-Erik Hamran3, Taryn Hicks7, Eric D Hinterman25, Briony N Horgan23, Joel Hurowitz26, Jeffrey R Johnson27, Jeremie Lasue28, Rachel E Kronyak1, Yang Liu1, Juan Manuel Madariaga16, Nicolas Mangold29, John McClean24, Noah Miklusicak7, Daniel Nunes1, Corrine Rojas6, Kirby Runyon27, Nicole Schmitz30, Noel Scudder23, Emily Shaver7, Jason SooHoo25, Russell Spaulding7, Evan Stanish31, Leslie K Tamppari1, Michael M Tice32, Nathalie Turenne31, Peter A Willis1, R Aileen Yingst33.
Abstract
The Mars 2020 Perseverance rover landing site is located within Jezero crater, a ∼ 50 km diameter impact crater interpreted to be a Noachian-aged lake basin inside the western edge of the Isidis impact structure. Jezero hosts remnants of a fluvial delta, inlet and outlet valleys, and infill deposits containing diverse carbonate, mafic, and hydrated minerals. Prior to the launch of the Mars 2020 mission, members of the Science Team collaborated to produce a photogeologic map of the Perseverance landing site in Jezero crater. Mapping was performed at a 1:5000 digital map scale using a 25 cm/pixel High Resolution Imaging Science Experiment (HiRISE) orthoimage mosaic base map and a 1 m/pixel HiRISE stereo digital terrain model. Mapped bedrock and surficial units were distinguished by differences in relative brightness, tone, topography, surface texture, and apparent roughness. Mapped bedrock units are generally consistent with those identified in previously published mapping efforts, but this study's map includes the distribution of surficial deposits and sub-units of the Jezero delta at a higher level of detail than previous studies. This study considers four possible unit correlations to explain the relative age relationships of major units within the map area. Unit correlations include previously published interpretations as well as those that consider more complex interfingering relationships and alternative relative age relationships. The photogeologic map presented here is the foundation for scientific hypothesis development and strategic planning for Perseverance's exploration of Jezero crater.Entities:
Keywords: Geologic mapping; Jezero; Mars; Perseverance; Rover
Year: 2020 PMID: 33568875 PMCID: PMC7116714 DOI: 10.1007/s11214-020-00739-x
Source DB: PubMed Journal: Space Sci Rev ISSN: 0038-6308 Impact factor: 8.017