How much magma is hiding beneath our feet? Mysteries of Earth’s crust pierced

23 julio 2014

Molten rock, or magma, has a strong influence on our planet and its inhabitants, causing destructive volcanic eruptions and generating some of the giant mineral deposits. Our understanding of these phenomena is, however, limited by the fact that most magma cools and solidifies several kilometers beneath our feet, only to be exposed at the surface, millions of years later, by erosion.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1ViiD_oyHeA/140723131359.htm

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