The Geology of Jezero Crater, Observations & Findings |
The Geology of Jezero Crater, Observations & Findings |
Feb 19 2022, 11:11 PM
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#271
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Senior Member Group: Members Posts: 1057 Joined: 17-February 09 Member No.: 4605 |
The fact that the current floor of the crater is igneous was hardly surprising. Well before the landing it was identified as lava deposit(s) laid down after the lake dried up and significant erosion of the delta had occurred. Guillaumes grind (Roubion coring attempt) was at the bottom of a 16 metres dip well below all other grinds/samples and and still looks sedimentary to my tired old eyes.
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Aug 26 2022, 06:20 PM
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#272
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Senior Member Group: Members Posts: 3009 Joined: 30-October 04 Member No.: 105 |
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Aug 27 2022, 03:06 AM
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#273
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Senior Member Group: Members Posts: 1057 Joined: 17-February 09 Member No.: 4605 |
A couple more very interesting contributions. Some indications that water in Jezero may have a long history, albeit cyclical.
https://www.science.org/doi/10.1126/science.abo2196 https://www.science.org/doi/10.1126/sciadv.abp8564 |
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Aug 27 2022, 08:41 AM
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#274
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Member Group: Members Posts: 104 Joined: 3-February 20 From: Paris (France) Member No.: 8747 |
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Aug 27 2022, 04:04 PM
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#275
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Senior Member Group: Members Posts: 3009 Joined: 30-October 04 Member No.: 105 |
Good set of papers. Jezero crater has a long and varied history. .I'm looking forward to getting up on the delta surface, the floodplain and river channels. Mars as a whole has had a cyclical climate. Although Mars is presently dry and cold on the surface it is warm snd wet at depth.
--Bill -------------------- |
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Aug 28 2022, 12:35 AM
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#276
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Senior Member Group: Members Posts: 1057 Joined: 17-February 09 Member No.: 4605 |
The models for the evolution of Séítah, Máaz etc are compelling. The only query I would have is the timeline for the beginning of cyclical inflow to the crater. That is, did this begin prior to basaltic emplacement because Guillaumes at the deepest exposure seems sedimentary.
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