SHERLOC Raman Mineral Class Detections of the Mars 2020 Crater Floor Campaign

Author:

Corpolongo Andrea1ORCID,Jakubek Ryan S.2,Burton Aaron S.3ORCID,Brown Adrian J.4ORCID,Yanchilina Anastasia5ORCID,Czaja Andrew D.1ORCID,Steele Andrew6,Wogsland Brittan V.7ORCID,Lee Carina8,Flannery David9ORCID,Baker Desirée1,Cloutis Edward A.10ORCID,Cardarelli Emily4,Scheller Eva L.11,Berger Eve L.12,McCubbin Francis M.3,Hollis Joseph Razzell4,Hickman‐Lewis Keyron1314,Steadman Kim4ORCID,Uckert Kyle4ORCID,DeFlores Lauren4,Kah Linda7ORCID,Beegle Luther W.15,Fries Marc3ORCID,Minitti Michelle16ORCID,Haney Nikole C.2ORCID,Conrad Pamela6,Morris Richard V.3ORCID,Bhartia Rohit17,Roppel Ryan18ORCID,Siljeström Sandra19,Asher Sanford A.18,Bykov Sergei V.18ORCID,Sharma Sunanda4,Shkolyar Svetlana202122ORCID,Fornaro Teresa23ORCID,Abbey William4ORCID

Affiliation:

1. Department of Geology University of Cincinnati Cincinnati OH USA

2. Jacobs NASA Johnson Space Center Houston TX USA

3. NASA Johnson Space Center Houston TX USA

4. Jet Propulsion Laboratory California Institution of Technology Pasadena CA USA

5. Impossible Sensing Incorporated St. Louis MO USA

6. Carnegie Institute of Washington Washington DC USA

7. Department of Earth and Planetary Sciences University of Tennessee Knoxville TN USA

8. Lunar & Planetary Institute Universities Space Research Association Houston TX USA

9. Queensland University of Technology Brisbane QLD Australia

10. Department of Geography University of Winnipeg Winnipeg MB Canada

11. California Institute of Technology Pasadena CA USA

12. Texas State University Jacobs JETS NASA Johnson Space Center Houston TX USA

13. The Natural History Museum London UK

14. Dipartimento BiGeA Università di Bologna Bologna Italy

15. Formerly at Jet Propulsion Laboratory California Institution of Technology Pasadena CA USA

16. Framework Silver Spring MD USA

17. Photon Systems Incorporated Covina CA USA

18. Department of Chemistry University of Pittsburgh Pittsburgh PA USA

19. RISE Research Institutes of Sweden Stockholm Sweden

20. USRA Columbia MD USA

21. NASA Goddard Space Flight Center Greenbelt MD USA

22. Blue Marble Space Institute of Science Seattle WA USA

23. INAF‐Astrophysical Observatory of Arcetri Florence Italy

Abstract

AbstractThe goals of NASA's Mars 2020 mission include searching for evidence of ancient life on Mars, studying the geology of Jezero crater, understanding Mars' current and past climate, and preparing for human exploration of Mars. During the mission's first science campaign, the Perseverance rover's SHERLOC deep UV Raman and fluorescence instrument collected microscale, two‐dimensional Raman and fluorescence images on 10 natural (unabraded) and abraded targets on two different Jezero crater floor units: Séítah and Máaz. We report SHERLOC Raman measurements collected during the Crater Floor Campaign and discuss their implications regarding the origin and history of Séítah and Máaz. The data support the conclusion that Séítah and Máaz are mineralogically distinct igneous units with complex aqueous alteration histories and suggest that the Jezero crater floor once hosted an environment capable of supporting microbial life and preserving evidence of that life, if it existed.

Funder

Swedish National Space Agency

Canadian Space Agency

Natural Sciences and Engineering Research Council of Canada

Publisher

American Geophysical Union (AGU)

Subject

Space and Planetary Science,Earth and Planetary Sciences (miscellaneous),Geochemistry and Petrology,Geophysics

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