Arizona Geophysicists Detect Molten Layer in American Southwest (IMAGE)

Arizona State University

Arizona Geophysicists Detect Molten Layer in American Southwest

Caption

A sheet of molten rock roughly 10 miles thick spreads underneath much of the American Southwest, some 250 miles below Tucson, Ariz. From the surface, you can't see it, smell it or feel it. But Arizona geophysicists Daniel Toffelmier (left) and James Tyburczy detected the molten layer with a comparatively new and overlooked technique for exploring the deep Earth that uses magnetic eruptions on the sun.

Credit

Tom Story, Arizona State University

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