The western route, 5th leg after stop at Absecon / Reeds Bay |
The western route, 5th leg after stop at Absecon / Reeds Bay |
Jul 11 2009, 05:57 PM
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
Time for a new thread.
After moving southwards for ages, the "detour" by the western path has started with a 60+ meters drive on sol 1942. There are no images yet --they should be available on the next update-- so this image was calculated solely based on the rover's mobility info. I'll update the route map later. |
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Aug 2 2009, 12:26 PM
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Senior Member Group: Members Posts: 1045 Joined: 17-February 09 Member No.: 4605 |
Could Block Island be a mesosiderite (stony iron meteorite)? Yes they are rare, but that would explain much of what we see. Burial on impact, exposure to acidic groundwater, exhumation and eolian erosian producing yet another Mars mystery to ponder.
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Aug 2 2009, 12:57 PM
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Member Group: Members Posts: 204 Joined: 29-June 05 Member No.: 421 |
As the block island meteorite seems very similar to heat shield rock, the discussion regarding impact scenarios for HSR probably applies without much change. See this long Lunar and Planetary Science abstract for some detailed analysis, which comes to the conclusion that it must have come in at a pretty low angle to arrive in one piece, even in a range of martian atomospheres from today's thin version to a much thicker past version. So however recently it landed, it would have been expected to ricochet and not be near an impact feature from its initial hit.
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