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2/15/11 2:17 PMFormat Dynamics

Summary: 2/15/11 2:17 PMFormat Dynamics :: Kodak Viewer
Page 1 of 2http://www.msnbc.msn.com/cleanprint/CleanPrintProxy.aspx?1297775804249
By Lynne Peeples
updated 9/8/2010 10:58:09 AM ET
A plume of molten rock rising from deep
beneath Yellowstone National Park is probably
what is fueling the region's volcanic activity, as
well as tectonic plate oddities across the
Pacific Northwest, new research suggests.
Building on a growing body of evidence,
Mathias Obrebski of the University of
California, Berkeley, and his colleagues
created the most convincing picture to date of
a Yellowstone mantle plume -- one that
extends from about 621 miles below the
surface of the Earth.
Debates have long been waged over whether
erupting and shaking in the area over the last
few millions of years -- and a track marked


Source: Allen, Richard M. - Seismological Laboratory, Department of Earth and Planetary Science, University of California at Berkeley


Collections: Geosciences