"Most volcanism on Earth occurs at plate boundaries in places where tectonic plates move apart (e.g. Iceland) and in places where tectonic plates come together with one plate diving (subducting) below the other plate into the mantle (e.g. Pacific ring of fire)," Dr Schellart said. "For the latter scenario, the volcanoes form directly above the subducted plate." |
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I have a law degree (Stanford, 66') but have never practiced. Instead, from 1967 through 1977, I tried to contribute to the revolution in America. As unsuccessful as everyone else over that decade, in 1978 I went to work for the U.S. Forest (
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