Elevation related to temperature differences within the Earth's crust: geologists
CBCTue, 26 Jun 2007 16:32 EDT
Heat contained in the Earth's crust acts like a life-jacket, and without it much of North America would be under water, suggests research at the University of Utah.
The flooding predicted because of global warming is a much more immediate threat, the researchers note. It would take billions of years for North American rock to cool to the point where it will become denser and sink enough to put much of the continent under water.
The research suggests for the first time that about half the elevation of any place in North America is related to temperature differences within the Earth's crust, with most of the rest due to differences in what the rocks are made of.
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posted by ... @ 2:19 PM
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