Along the base of Vera Rubin Ridge, (Sites 64-65, Sols 1726-1812, Jun 14-Sep 11 2017) |
Along the base of Vera Rubin Ridge, (Sites 64-65, Sols 1726-1812, Jun 14-Sep 11 2017) |
Sep 1 2017, 09:08 PM
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#181
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Senior Member Group: Members Posts: 2428 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Where have you been seeing hints towards dessication patterns, Paul? I see hints towards layering of sediments of variable cementation, fracture fill, possibly syneresis cracking of a soft and fresh sediment. But I've difficulties to find hexagonal or rectangular shringkage patterns more typical for dessication, unless it's been heavily distorted by a subsequent process. Gerald, thank you (as always) for your expert feedback. The 'hints' I referred to are those dust covered features of the lower portion of this frame. Link |
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Sep 1 2017, 10:13 PM
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#182
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Thanks, Paul! These escaped my notice. There is indeed a considerable similarily with dessication patterns. Thanks again for pointing to the according image!
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Sep 2 2017, 02:41 AM
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#183
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Senior Member Group: Members Posts: 2428 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
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Sep 2 2017, 10:04 AM
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#184
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Senior Member Group: Members Posts: 2428 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
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Sep 4 2017, 05:56 PM
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#185
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Senior Member Group: Members Posts: 2822 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Sep 4 2017, 06:16 PM
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#186
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Senior Member Group: Members Posts: 2822 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Sep 4 2017, 11:07 PM
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#187
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Senior Member Group: Members Posts: 1630 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
Neat to see the lighter colored rocks on top of the ridge.
-------------------- Steve [ my home page and planetary maps page ]
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Sep 5 2017, 01:27 AM
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#188
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Senior Member Group: Members Posts: 1043 Joined: 17-February 09 Member No.: 4605 |
That lightness could have more to do with the angles of reflection than composition of the rock.
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Sep 5 2017, 01:53 AM
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#189
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
No - the Hematite ridge really is a brighter tone of rock - it's clearly visible in HiRISE and CTX as well as from the surface.
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Sep 5 2017, 02:37 AM
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#190
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Senior Member Group: Members Posts: 2428 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Mosaic using just 8 L-MastCam frames of what will eventually be a much larger mosaic. These raw Sol 1805 frames were assembled in MS ICE without additional processing.
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Sep 6 2017, 01:16 AM
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#191
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Senior Member Group: Members Posts: 2428 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
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Sep 6 2017, 04:26 AM
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#192
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Solar System Cartographer Group: Members Posts: 10153 Joined: 5-April 05 From: Canada Member No.: 227 |
This is Jan's sol 1800 panorama in circular form. I also made a circular projection of Paul's partial panorama from sol 1807 to get a good location for the route map.
Phil -------------------- ... 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 PD: 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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Sep 6 2017, 12:33 PM
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#193
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Senior Member Group: Members Posts: 2822 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Sep 6 2017, 05:12 PM
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#194
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Solar System Cartographer Group: Members Posts: 10153 Joined: 5-April 05 From: Canada Member No.: 227 |
A great image, Jan - thanks. Here is a circular version showing how we are perched on the edge of the ridge. The atmosphere is getting clearer, so we see the crater rim quite well. Soon we'll have the widest view ever of that distant landscape.
Phil -------------------- ... 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 PD: 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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Sep 6 2017, 05:55 PM
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#195
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Member Group: Members Posts: 215 Joined: 23-October 12 From: Russia Member No.: 6725 |
-------------------- My blog on Patreon
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