Difference between revisions of "October 5, 2010"
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=Polar Puzzle= | =Polar Puzzle= | ||
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<em>LRO Wide Angle Camera mosaic from [http://wms.lroc.asu.edu/lroc_browse/view/SP_Mosaic NASA/GSFC/Arizona State University]</em> <br /> | <em>LRO Wide Angle Camera mosaic from [http://wms.lroc.asu.edu/lroc_browse/view/SP_Mosaic NASA/GSFC/Arizona State University]</em> <br /> | ||
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<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em> <br /> | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em> <br /> | ||
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===COMMENTS?=== | ===COMMENTS?=== | ||
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment. | Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment. | ||
Revision as of 21:12, 2 January 2015
Polar Puzzle
LRO Wide Angle Camera mosaic from NASA/GSFC/Arizona State University
Wiechert J is the relatively fresh 34 km wide crater at bottom center. It is just 5º from the south pole. Nearby is a somewhat dark layer of material that appears to coat underlying terrain. What is it? The arrows point to areas where the dark deposit seems to have stopped in a movement across the surface. The material to the south of Wiechert J has a rough texture with groves and ridges, and one part has a slightly elevated surface with a curved, flow-front like outline. The material to the right of the crater has a much smoother surface and clearly fills in and softens underlying terrain. This material appears to have at least partially flowed. The south pole is far from any recognized volcanic deposit so it more likely that the material is some type of ejecta. But all basins are distant from the pole. So what is this stuff?
Chuck Wood
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