Scientists follow magma from Earth's belly to base of Mt. Rainier

The lava that spews from the fiery rims of volcanoes originates deep in Earth’s crust, often more than 50 miles below our feet. Although scientists have a general idea where this magma comes from, it’s nearly impossible to see exactly what’s happening so far beneath the surface.



via L.A. Times - Science http://ift.tt/1qgI9Vi