MIT solves longstanding volcanic mystery

For decades, geologists have been puzzled by the mechanisms that give rise to the kind of volcanoes that form the so-called “ring of fire” around the Pacific Ocean. These arc volcanoes, which account for about 10 to 25 percent of all volcanoes, are produced when one of the plates that make up Earth’s crust plunges beneath another plate, a process called subduction.

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<p><a href="http://www.physorg.com/news163684334.html">MIT solves longstanding volcanic mystery</a></p> <p>For decades, geologists have been puzzled by the mechanisms that give rise to the kind of volcanoes that form the so-called “ring of fire” around the Pacific Ocean. These arc volcanoes, which account for about 10 to 25 percent of all volcanoes, are produced when one of the plates that make up Earth’s crust plunges beneath another plate, a process called subduction.</p>