Geomorphology of Cape York and Solander Point, Examining Opportunity's destination at Endeavour Crater |
Geomorphology of Cape York and Solander Point, Examining Opportunity's destination at Endeavour Crater |
Jul 6 2010, 07:52 PM
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Everyone, say hello to Cape York... in colour...
Larger version on my blog: http://roadtoendeavour.wordpress.com/2010/...-york-in-colour -------------------- |
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Feb 9 2011, 04:56 PM
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Member Group: Members Posts: 146 Joined: 31-October 08 Member No.: 4473 |
The "shore-like" features around Cape York are most likely the result of a combination of evaporite deposit-cementation and ice erosion. [IMHO].
It seems likely to me that any Martian body of water would be ice-covered nearly all the time, so any "shoreline" erosion features would be dominated by this layer of ice. Indeed, glacial patterns may dominate. Probably some sort of snow/brine freeze-thaw/dust cycle. Terrestrial analogs? |
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Feb 9 2011, 09:08 PM
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Member Group: Members Posts: 194 Joined: 3-January 10 Member No.: 5156 |
Just an intermediate hint (from Emily): There is a new paper, which covers all discoveries by Opportunity between sols 511 and 2300
http://www.agu.org/pubs/crossref/2011/2010JE003746.shtml Abstract: "Key new results include (1) atmospheric argon measurements that demonstrate the importance of atmospheric transport to and from the winter carbon dioxide polar ice caps; (2) observations showing that aeolian ripples covering the plains were generated by easterly winds during an epoch with enhanced Hadley cell circulation; (3) the discovery and characterization of cobbles and boulders that include iron and stony-iron meteorites and Martian impact ejecta; (4) measurements of wall rock strata within Erebus and Victoria craters that provide compelling evidence of formation by aeolian sand deposition, with local reworking within ephemeral lakes; (5) determination that the stratigraphy exposed in the walls of Victoria and Endurance craters show an enrichment of chlorine and depletion of magnesium and sulfur with increasing depth. This result implies that regional-scale aqueous alteration took place before formation of these craters" I am very interested in this paper, but it isn't public Has somebody read it? -------------------- Need more input ...
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