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Geology
Measurements link magma melting rate to tectonic plate subduction rate
November 20th, 2007
Determining the origin and rate of magma production in subduction zone volcanoes is essential to understanding the formation of continental crust and the recycling of subducted materials back into Earth’s mantle. Now, geologists at the University of Illinois report new measurements of rock samples from Kick’em Jenny, a submarine volcano in the Caribbean, that link the rate at which magma is produced beneath subduction zone volcanoes to the rate at which tectonic plates converge in this plate tectonic setting. "We can use the geochemical measurements to constrain a geophysical parameter, the melt production rate; we then relate the melting rate at an individual subduction zone to its plate...
Source: Science Letter (2007-11-20)
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