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Perseverance rover reveals an ancient delta-lake system and flood deposits at Jezero crater, Mars

Mangold, N. ; Gupta, S. ; Gasnault, O. ; Dromart, G. ; Tarnas, J. D. ; Sholes, S. F. ; Horgan, B. ; Quantin-Nataf, C. ; Brown, A. J. and Mouélic, S. Le , et al. (2021) In Science 374(6568).
Abstract

Observations from orbital spacecraft have shown that Jezero crater on Mars contains a prominent fan-shaped body of sedimentary rock deposited at its western margin. The Perseverance rover landed in Jezero crater in February 2021. We analyze images taken by the rover in the 3 months after landing. The fan has outcrop faces, which were invisible from orbit, that record the hydrological evolution of Jezero crater. We interpret the presence of inclined strata in these outcrops as evidence of deltas that advanced into a lake. In contrast, the uppermost fan strata are composed of boulder conglomerates, which imply deposition by episodic high-energy floods. This sedimentary succession indicates a transition from sustained hydrologic activity... (More)

Observations from orbital spacecraft have shown that Jezero crater on Mars contains a prominent fan-shaped body of sedimentary rock deposited at its western margin. The Perseverance rover landed in Jezero crater in February 2021. We analyze images taken by the rover in the 3 months after landing. The fan has outcrop faces, which were invisible from orbit, that record the hydrological evolution of Jezero crater. We interpret the presence of inclined strata in these outcrops as evidence of deltas that advanced into a lake. In contrast, the uppermost fan strata are composed of boulder conglomerates, which imply deposition by episodic high-energy floods. This sedimentary succession indicates a transition from sustained hydrologic activity in a persistent lake environment to highly energetic short-duration fluvial flows.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Science
volume
374
issue
6568
article number
A38
publisher
American Association for the Advancement of Science (AAAS)
external identifiers
  • scopus:85118958753
  • pmid:34618548
ISSN
0036-8075
DOI
10.1126/science.abl4051
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2021 American Association for the Advancement of Science. All rights reserved.
id
acb27ed2-ae92-4f78-961c-8146c11b8fd3
date added to LUP
2022-01-21 16:30:36
date last changed
2024-06-17 02:53:36
@article{acb27ed2-ae92-4f78-961c-8146c11b8fd3,
  abstract     = {{<p>Observations from orbital spacecraft have shown that Jezero crater on Mars contains a prominent fan-shaped body of sedimentary rock deposited at its western margin. The Perseverance rover landed in Jezero crater in February 2021. We analyze images taken by the rover in the 3 months after landing. The fan has outcrop faces, which were invisible from orbit, that record the hydrological evolution of Jezero crater. We interpret the presence of inclined strata in these outcrops as evidence of deltas that advanced into a lake. In contrast, the uppermost fan strata are composed of boulder conglomerates, which imply deposition by episodic high-energy floods. This sedimentary succession indicates a transition from sustained hydrologic activity in a persistent lake environment to highly energetic short-duration fluvial flows.</p>}},
  author       = {{Mangold, N. and Gupta, S. and Gasnault, O. and Dromart, G. and Tarnas, J. D. and Sholes, S. F. and Horgan, B. and Quantin-Nataf, C. and Brown, A. J. and Mouélic, S. Le and Yingst, R. A. and Bell, J. F. and Beyssac, O. and Bosak, T. and Calef, F. and Ehlmann, B. L. and Farley, K. A. and Grotzinger, J. P. and Hickman-Lewis, K. and Holm-Alwmark, S. and Kah, L. C. and Martinez-Frias, J. and McLennan, S. M. and Maurice, S. and Nuñez, J. I. and Ollila, A. M. and Pilleri, P. and Rice, J. W. and Rice, M. and Simon, J. I. and Shuster, D. L. and Stack, K. M. and Sun, V. Z. and Treiman, A. H. and Weiss, B. P. and Wiens, R. C. and Williams, A. J. and Williams, N. R. and Williford, K. H.}},
  issn         = {{0036-8075}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{6568}},
  publisher    = {{American Association for the Advancement of Science (AAAS)}},
  series       = {{Science}},
  title        = {{Perseverance rover reveals an ancient delta-lake system and flood deposits at Jezero crater, Mars}},
  url          = {{http://dx.doi.org/10.1126/science.abl4051}},
  doi          = {{10.1126/science.abl4051}},
  volume       = {{374}},
  year         = {{2021}},
}