Perseverance rover reveals an ancient delta-lake system and flood deposits at Jezero crater, Mars
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Mangold_Science_withFiguresHAL.pdf
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Accepted version
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3.79 MB
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Author(s)
Bosak, Tanja
Weiss, Benjamin
Date Issued
2021
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Bosak, Tanja and Weiss, Benjamin. 2021. "Perseverance rover reveals an ancient delta-lake system and flood deposits at Jezero crater, Mars." Science, 374 (6568).
Version
Author's final manuscript
Abstract
Perseverance images of a delta on Mars
The Perseverance rover landed in Jezero crater, Mars, in February 2021. Earlier orbital images showed that the crater contains an ancient river delta that was deposited by water flowing into a lake billions of years ago. Mangold et al . analyzed rover images taken shortly after landing that show distant cliff faces at the edge of the delta. The exposed stratigraphy and sizes of boulders allowed them to determine the past lake level and water discharge rates. An initially steady flow transitioned into intermittent floods as the planet dried out. This history of the delta’s geology provides context for the rest of the mission and improves our understanding of Mars’ ancient climate. —KTS
The Perseverance rover landed in Jezero crater, Mars, in February 2021. Earlier orbital images showed that the crater contains an ancient river delta that was deposited by water flowing into a lake billions of years ago. Mangold et al . analyzed rover images taken shortly after landing that show distant cliff faces at the edge of the delta. The exposed stratigraphy and sizes of boulders allowed them to determine the past lake level and water discharge rates. An initially steady flow transitioned into intermittent floods as the planet dried out. This history of the delta’s geology provides context for the rest of the mission and improves our understanding of Mars’ ancient climate. —KTS
MIT Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
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DOI of Published Version
https://doi.org/10.1126/SCIENCE.ABL4051
