Ground penetrating radar observations of the contact between the western delta and the crater floor of Jezero crater, Mars
(2024) In Science Advances 10(4).- Abstract
The delta deposits in Jezero crater contain sedimentary records of potentially habitable conditions on Mars. NASA's Perseverance rover is exploring the Jezero western delta with a suite of instruments that include the RIMFAX ground penetrating radar, which provides continuous subsurface images that probe up to 20 meters below the rover. As Perseverance traversed across the contact between the Jezero crater floor and the delta, RIMFAX detected a distinct discontinuity in the subsurface layer structure. Below the contact boundary are older crater floor units exhibiting discontinuous inclined layering. Above the contact boundary are younger basal delta units exhibiting regular horizontal layering. At one location, there is a clear... (More)
The delta deposits in Jezero crater contain sedimentary records of potentially habitable conditions on Mars. NASA's Perseverance rover is exploring the Jezero western delta with a suite of instruments that include the RIMFAX ground penetrating radar, which provides continuous subsurface images that probe up to 20 meters below the rover. As Perseverance traversed across the contact between the Jezero crater floor and the delta, RIMFAX detected a distinct discontinuity in the subsurface layer structure. Below the contact boundary are older crater floor units exhibiting discontinuous inclined layering. Above the contact boundary are younger basal delta units exhibiting regular horizontal layering. At one location, there is a clear unconformity between the crater floor and delta layers, which implies that the crater floor experienced a period of erosion before the deposition of the overlying delta strata. The regularity and horizontality of the basal delta sediments observed in the radar cross sections indicate that they were deposited in a low-energy lake environment.
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- author
- organization
- publishing date
- 2024-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Science Advances
- volume
- 10
- issue
- 4
- publisher
- American Association for the Advancement of Science (AAAS)
- external identifiers
-
- pmid:38277450
- scopus:85183591268
- ISSN
- 2375-2548
- DOI
- 10.1126/sciadv.adi8339
- language
- English
- LU publication?
- yes
- id
- 5c76ff69-ab72-47d3-a0c5-faa9cb3beb22
- date added to LUP
- 2024-02-22 10:18:45
- date last changed
- 2024-04-23 16:12:42
@article{5c76ff69-ab72-47d3-a0c5-faa9cb3beb22, abstract = {{<p>The delta deposits in Jezero crater contain sedimentary records of potentially habitable conditions on Mars. NASA's Perseverance rover is exploring the Jezero western delta with a suite of instruments that include the RIMFAX ground penetrating radar, which provides continuous subsurface images that probe up to 20 meters below the rover. As Perseverance traversed across the contact between the Jezero crater floor and the delta, RIMFAX detected a distinct discontinuity in the subsurface layer structure. Below the contact boundary are older crater floor units exhibiting discontinuous inclined layering. Above the contact boundary are younger basal delta units exhibiting regular horizontal layering. At one location, there is a clear unconformity between the crater floor and delta layers, which implies that the crater floor experienced a period of erosion before the deposition of the overlying delta strata. The regularity and horizontality of the basal delta sediments observed in the radar cross sections indicate that they were deposited in a low-energy lake environment.</p>}}, author = {{Paige, David A. and Hamran, Svein Erik and Amundsen, Hans E.F. and Berger, Tor and Russell, Patrick and Kakaria, Reva and Mellon, Michael T. and Eide, Sigurd and Carter, Lynn M. and Casademont, Titus M. and Nunes, Daniel C. and Shoemaker, Emileigh S. and Plettemeier, Dirk and Dypvik, Henning and Holm-Alwmark, Sanna and Horgan, Briony H.N.}}, issn = {{2375-2548}}, language = {{eng}}, number = {{4}}, publisher = {{American Association for the Advancement of Science (AAAS)}}, series = {{Science Advances}}, title = {{Ground penetrating radar observations of the contact between the western delta and the crater floor of Jezero crater, Mars}}, url = {{http://dx.doi.org/10.1126/sciadv.adi8339}}, doi = {{10.1126/sciadv.adi8339}}, volume = {{10}}, year = {{2024}}, }