Perseverance rover reveals an ancient delta-lake system and flood deposits at Jezero crater, Mars
(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.
(Less)
- author
- organization
- publishing date
- 2021-11-05
- 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
-
- pmid:34618548
- scopus:85118958753
- 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
- 2024-09-09 07:17:33
@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}}, }