Photogeologic Map of the Perseverance Rover Field Site in Jezero Crater Constructed by the Mars 2020 Science Team

Kathryn M. Stack , Nathan R. Williams , Fred Calef , Vivian Z. Sun , Kenneth H. Williford , Kenneth A. Farley , Sigurd Eide , David Flannery , Cory Hughes , Samantha R. Jacob , Linda C. Kah , Forrest Meyen , Antonio Molina , Cathy Quantin-Nataf (1) , Melissa Rice , Patrick Russell , Eva Scheller , Christina H. Seeger , William J. Abbey , Jacob B. Adler , Hans Amundsen , Ryan B. Anderson , Stanley M. Angel , Gorka Arana , James Atkins , Megan Barrington , Tor Berger , Rose Borden , Beau Boring , Adrian Brown , Brandi L. Carrier , Pamela Conrad , Henning Dypvik , Sarah A. Fagents , Zachary E. Gallegos , Brad Garczynski , Keenan Golder , Felipe Gomez , Yulia Goreva , Sanjeev Gupta , Svein-Erik Hamran , Taryn Hicks , Eric D. Hinterman , Briony N. Horgan , Joel Hurowitz , Jeffrey R. Johnson , Jeremie Lasue (2) , Rachel E. Kronyak , Yang Liu , Juan Manuel Madariaga , Nicolas Mangold (3) , John Mcclean , Noah Miklusicak , Daniel Nunes , Corrine Rojas , Kirby Runyon , Nicole Schmitz , Noel Scudder , Emily Shaver , Jason Soohoo , Russell Spaulding , Evan Stanish , Leslie K. Tamppari , Michael M. Tice , Nathalie Turenne , Peter A. Willis , R. Aileen Yingst

1 Université de Lyon
2 IRAP - Institut de recherche en astrophysique et planétologie
3 LPG - Laboratoire de Planétologie et Géodynamique [UMR 6112]

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.

Mots clés: Mars; Perseverance; Rover; Jezero; Geologic mapping

Domaines: Planète et Univers [physics]

Kathryn M. Stack, Nathan R. Williams, Fred Calef, Vivian Z. Sun, Kenneth H. Williford, et al.. Photogeologic Map of the Perseverance Rover Field Site in Jezero Crater Constructed by the Mars 2020 Science Team. Space Science Reviews, 2020, 216, ⟨10.1007/s11214-020-00739-x⟩. ⟨insu-03663839⟩