Exploring the Greenheugh Pediment, Sols 3387-3871, 16 Feb 2022-1 Jul 2023 |
Exploring the Greenheugh Pediment, Sols 3387-3871, 16 Feb 2022-1 Jul 2023 |
Feb 25 2022, 10:18 AM
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#16
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Senior Member Group: Members Posts: 2872 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Feb 25 2022, 06:49 PM
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#17
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
Wow, look at this freaky little object!
Phil PS - only later did I notice that Fredk had posted about this earlier, but he had the misfortune of being stuck on the previous page so I didn't see it at the time. -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Feb 25 2022, 07:53 PM
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#18
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Senior Member Group: Members Posts: 2872 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Feb 25 2022, 08:04 PM
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#19
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Senior Member Group: Members Posts: 2872 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Feb 25 2022, 09:02 PM
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#20
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Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Amazing. Shooting from the hip, this would appear at first glance to be some sort of evaporite structure like barite 'roses' in terrestrial deserts. Maybe gypsum?
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Feb 25 2022, 09:21 PM
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#21
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Senior Member Group: Members Posts: 2872 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Feb 26 2022, 07:28 AM
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#22
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Member Group: Members Posts: 427 Joined: 18-September 17 Member No.: 8250 |
Wow, look at this freaky little object! Phil There's a cool 3D reconstruction at https://twitter.com/stim3on/status/14973368...VvgaCYnqCQRhXxw |
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Feb 28 2022, 11:49 AM
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#23
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Senior Member Group: Members Posts: 1075 Joined: 21-September 07 From: Québec, Canada Member No.: 3908 |
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Mar 1 2022, 05:10 AM
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#24
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
-------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Mar 1 2022, 01:26 PM
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#25
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Senior Member Group: Members Posts: 3008 Joined: 30-October 04 Member No.: 105 |
Some fun geology in stereo on sol 3396. Anaglyph: [attachment=50537:3396MH00...DXXX_ana.jpg] and cross-eyed: [attachment=50538:3396MH00...XX_cross.jpg] How wonderful is this? It appears to be a "desert rose", likely a twinned crystal of gypsum (calcium sulfate) grown within a sandy sediment and incorporating some of the sand grains in it's structure. Common in the desert where there are saturated, liberalized waters percolating in porous, Sandy sediments. Note the "surface" it is on is actually a flat plane cutting across many fine layers. Aeolian erosion in action! These features speak volumes about the processes involved here. --Bill -------------------- |
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Mar 1 2022, 06:23 PM
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#26
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Senior Member Group: Members Posts: 3008 Joined: 30-October 04 Member No.: 105 |
Where do we suppose the desert rose is located on this Pan? --Bill -------------------- |
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Mar 1 2022, 08:42 PM
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#27
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
The "rose" was near the 3393 location, so not very visible in the 3397 view.
You can see "roses" in this 3393 ML: https://mars.nasa.gov/msl-raw-images/msss/0...116C00_DXXX.jpg http://lcdm.ca/msl/3393/3393ML101516066130...XXX_deBayer.jpg and some context in this hazcam view: https://mars.nasa.gov/msl-raw-images/proj/m...FHAZ00302M_.JPG |
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Mar 2 2022, 02:16 AM
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#28
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Senior Member Group: Members Posts: 3008 Joined: 30-October 04 Member No.: 105 |
Good. These views, plus the 3393 panorama, give a context of this lithology. I see some fracture fills, which suggests saturated groundwaters.
--Bill -------------------- |
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Mar 2 2022, 10:38 AM
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#29
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Senior Member Group: Members Posts: 2872 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Mar 2 2022, 05:28 PM
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#30
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Senior Member Group: Members Posts: 2872 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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