Gusev terrain, some data from CRISM and HiRISE |
Gusev terrain, some data from CRISM and HiRISE |
Mar 25 2009, 10:11 AM
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#1
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Member Group: Members Posts: 236 Joined: 5-June 08 From: Udon Thani Member No.: 4185 |
Computer generated terrain clasification based on HiRISE for area north and south of Columbia hills. Colors mark areas which have the same average grid brightness and the same variance. The colors in themselves have no meaning, they are just used to show the different terrains.
Both images are at 16 mtr / pixel map aligned. |
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Mar 25 2009, 10:24 AM
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#2
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Member Group: Members Posts: 236 Joined: 5-June 08 From: Udon Thani Member No.: 4185 |
Distribution of Iron and Ferric minerals as measured by CRISM (average of all available CRISM data). Colors note area's which have the same quantities of iron and ferric minerals, the colors in themselves are meaningless and only used to show the various area's. Note more or less the same terrain shows up as in above post from HiRISE data. Same map for distribution of mafic minerals (pyroxenes) as measured by CRISM. Once again note that in this presentation the colors do not show whether there is more or less of a certain mineral, they only show the area's which have the same distribution of measured minerals. |
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Mar 25 2009, 10:37 AM
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#3
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Member Group: Members Posts: 236 Joined: 5-June 08 From: Udon Thani Member No.: 4185 |
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Mar 25 2009, 10:46 AM
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#4
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Member Group: Members Posts: 236 Joined: 5-June 08 From: Udon Thani Member No.: 4185 |
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Mar 25 2009, 10:55 AM
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#5
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Member Group: Members Posts: 236 Joined: 5-June 08 From: Udon Thani Member No.: 4185 |
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Mar 25 2009, 11:02 AM
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#6
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Member Group: Members Posts: 236 Joined: 5-June 08 From: Udon Thani Member No.: 4185 |
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Mar 26 2009, 12:28 PM
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#7
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Member Group: Members Posts: 206 Joined: 15-August 07 From: Shrewsbury, Shropshire Member No.: 3233 |
Gusev crater once most likely contained a lake. The main reason for the selection of Gusev as a MER landing site was to look for lake deposits. Does the CRISM data for Gusev crater or for the large overflow channel to the South East of Gusev crater show evidence of lake or river deposits?
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Mar 26 2009, 08:09 PM
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#8
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Solar System Cartographer Group: Members Posts: 10231 Joined: 5-April 05 From: Canada Member No.: 227 |
A mud flow might be a better description... doesn't seem to be much evidence for actual standing water. I don't know about compositional data (clays etc.) that might add to that.
But - there is an amazing geologic map of the Columbia Hills and Inner Basin area including Home Plate, by Larry Crumpler, in the poster session here at LPSC. I'm drooling - I hope it gets published or distributed as a big PDF at some point. It's a combination of HiRISE data and Spirit's observations. 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 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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Sep 24 2009, 02:00 PM
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#9
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Junior Member Group: Members Posts: 57 Joined: 17-May 06 From: Houston, Texas Member No.: 776 |
If Home Plate is supposed to be a fumarole, could Pitchers Mound be a volcanic cone?
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