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Old 03-30-2009, 10:31 PM
 
Location: Texas
5,070 posts, read 8,777,017 times
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The results, published in Nature on March 19, 2009, suggest that rock conductivity is not constant as was previously assumed, but instead varies strongly with temperature. Hofmeister explains, "Our analysis shows that rocks are more efficient at conducting heat at low temperatures than was previously thought and less efficient at high temperatures. The process of moving heat around really depends on the temperature of the rocks."

Seems to me the temperature of the crust would remain cooler where magmas cooler, while hot spots would stay that way.
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