Aqueous alteration processes in Jezero crater, Mars-implications for organic geochemistry.
Journal
Science (New York, N.Y.)
ISSN: 1095-9203
Titre abrégé: Science
Pays: United States
ID NLM: 0404511
Informations de publication
Date de publication:
09 12 2022
09 12 2022
Historique:
pubmed:
24
11
2022
medline:
15
12
2022
entrez:
23
11
2022
Statut:
ppublish
Résumé
The Perseverance rover landed in Jezero crater, Mars, in February 2021. We used the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument to perform deep-ultraviolet Raman and fluorescence spectroscopy of three rocks within the crater. We identify evidence for two distinct ancient aqueous environments at different times. Reactions with liquid water formed carbonates in an olivine-rich igneous rock. A sulfate-perchlorate mixture is present in the rocks, which probably formed by later modifications of the rocks by brine. Fluorescence signatures consistent with aromatic organic compounds occur throughout these rocks and are preserved in minerals related to both aqueous environments.
Identifiants
pubmed: 36417498
doi: 10.1126/science.abo5204
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM