Several ideas major impact stripped much of the

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Unformatted text preview: edu/gallery/sciencePhotos/image.php?&image_id=235 Mercury had running water at some Hme in its past. most of Mercury’s craters are volcanic in origin. Mercury shrank aSer its crust solidified. most of Mercury’s surface is <100 million years old. Mercury now has acHve plate tectonics. Apr. 8 Apr. 8 4 4/8/11 Radar map from Magellan Why a big core and thin lithosphere? Several ideas: •  Major impact stripped much of the lithosphere •  Protosun...
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This note was uploaded on 01/19/2012 for the course ASTRO 109750 taught by Professor Keeting during the Fall '11 term at Rutgers.

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