Jezero Delta Campaign, Sols 414-1000, 21 Apr 2022- 23 Dec 2023 |
Jezero Delta Campaign, Sols 414-1000, 21 Apr 2022- 23 Dec 2023 |
Apr 21 2022, 07:21 PM
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#301
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Member Group: Members Posts: 363 Joined: 13-April 06 From: Malta Member No.: 741 |
Think we can kick off the new phase of exploration at Jezero.
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Aug 14 2022, 09:19 PM
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#302
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Senior Member Group: Members Posts: 3008 Joined: 30-October 04 Member No.: 105 |
I don't think this is the case here, but I've seen boulders dropped by glaciers/floating sea ice into underlying sediment.
One complicating factor is that we have multiple erosional/depositional events happening over millions of years. Mars never disappoints. --Bill -------------------- |
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Aug 15 2022, 05:04 AM
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#303
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Member Group: Members Posts: 155 Joined: 8-February 04 From: Phoenix, AZ USA Member No.: 9 |
I don't think this is the case here, but I've seen boulders dropped by glaciers/floating sea ice into underlying sediment. One complicating factor is that we have multiple erosional/depositional events happening over millions of years. Mars never disappoints. I'm sticking with my previous interpretation in reply #297: these interesting stratal geometries are the result of scour and current shadows around an outsized intraclast, which now looks like a big armored mudball, studded with imbedded interclasts. The closer view also shows smaller scour and fill structures associated with partial, and then complete, burial of the clast. It even looks like some coarser bedload material was trapped behind the clast. As I mentioned before, I've seen big clasts like this far out on submarine fan lobes, with similar sedimentary structures around them. -------------------- Tim Demko
BioLink site |
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Lo-Fi Version | Time is now: 24th September 2024 - 10:47 AM |
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