Ancient oceans on Venus, Possible detection of surface granite by Venus Express |
Ancient oceans on Venus, Possible detection of surface granite by Venus Express |
 Jul 14 2009, 02:33 PM
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 Senior Member  Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345  |
space.com article on the possible detection of granite by IR signature on some of the ancient-looking plateaus:
http://www.space.com/scienceastronomy/0907...-venus-map.html Granite is formed by chemical processing with water in the mantle. The lower density granite bloops up and forms continental material. The argument is that if there was processing of subsurface rock by water, there may have been oceans and plate tectonics. -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Juramike Ancient oceans on Venus Jul 14 2009, 02:33 PM
nprev Exciting & interesting, but gotta play skeptic... Jul 15 2009, 12:32 AM
dburt QUOTE (nprev @ Jul 14 2009, 05:32 PM) Exc... Jul 15 2009, 12:58 AM qraal QUOTE (nprev @ Jul 15 2009, 12:32 PM) Exc... Jul 16 2009, 09:20 AM  |
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