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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Jul 19 2011, 06:32 PM
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Member Group: Members Posts: 363 Joined: 13-April 06 From: Malta Member No.: 741 |
I am no planetary geologist and therfore may not be knowledgable to answer such queries but I think that CY forms part of endeavour crater rim and thus represents material excavated from deeper layers on Mars which presumably contain the clays which predate the sulphates!
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Jul 19 2011, 06:56 PM
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
... I think that CY forms part of endeavour crater rim and thus represents material excavated from deeper layers... Yes, but at one point the sulphate layers covered Cape York. They have been eroded away so I would expect to find blueberries that eroded out of the sulphate layers on Cape York but I would expect little left of the Sulphate layers themselves. As for why the Meridiani plains leading up to Cape York are higher, I guess it's just a matter of differential erosion rates due to the prevailing winds over the topography of the crater.
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Jul 19 2011, 07:14 PM
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Junior Member Group: Members Posts: 53 Joined: 5-October 06 Member No.: 1227 |
Yes, but at one point the sulphate layers covered Cape York. They have been eroded away so I would expect to find blueberries that eroded out of the sulphate layers on Cape York but I would expect little left of the Sulphate layers themselves. This is quite plausable. In this case we should see a blueberry lag deposit directly on the clays (ie the sulfates are all gone in places). Blueberries over clays (and other CY rim materials) would look different than blueberries over sulfates & sands (which we are driving on) and would explain why CY is destinctive looking even though it is lower than the plains. |
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