The Top of Vera Rubin Ridge Part 1, Site 66-67, sol 1812-1943, 11 Sep 2017-23 Jan 2018 |
The Top of Vera Rubin Ridge Part 1, Site 66-67, sol 1812-1943, 11 Sep 2017-23 Jan 2018 |
Sep 11 2017, 09:50 AM
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#301
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Senior Member Group: Members Posts: 2431 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Welcome to Route 66... Er, make that Site 66
Drive 0000 on Sol 1812. Roughly stitched L-NavCam using MS ICE Midnight Planets reporting it as ~5.6m ESE (115º) link |
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Jan 18 2018, 02:18 AM
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#302
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Senior Member Group: Members Posts: 1057 Joined: 17-February 09 Member No.: 4605 |
Actually Phil's identification of the central pin indentation may hold the answer as the bristles seem to scribe a groove around the pin on occasion.
As Phil and also MrNatural identify, this is comparatively soft rock compared to the hematite ridge which could reflect lack of consolidation as well as cementing agent. If it is clay then would this tend to imply that it was formed after the Mount Sharp overburden had eroded away? |
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Jan 18 2018, 02:59 AM
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#303
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Junior Member Group: Members Posts: 42 Joined: 19-October 12 Member No.: 6719 |
Actually Phil's identification of the central pin indentation may hold the answer as the bristles seem to scribe a groove around the pin on occasion. As Phil and also MrNatural identify, this is comparatively soft rock compared to the hematite ridge which could reflect lack of consolidation as well as cementing agent. If it is clay then would this tend to imply that it was formed after the Mount Sharp overburden had eroded away? Not sure if MSL has reached the Clay Unit, but given the softness of this rock and its visual appearance, I would think that this would be a good place to try the new drilling strategy. I suspect that ever since MSL landed, the team has wanted to analyze the Clay Unit with SAM, even if MSL has run into clay at many other drill sites (but these clay's were not visible with CRISM). |
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Jan 21 2018, 09:34 PM
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#304
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Senior Member Group: Members Posts: 1057 Joined: 17-February 09 Member No.: 4605 |
Not sure if MSL has reached the Clay Unit....... Probably not, but Curiosity is at the verge of the Crism hematite response and in one of the "blue-grey" patches referred to in Emily's last walkaround. http://www.planetary.org/blogs/emily-lakda...-1814-1926.html |
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