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Mt. St. Helens erupts in 1980. Photo courtesy USGS.
New research suggests melting ice sheets could trigger more vulcanism
By Summit Voice
SUMMIT COUNTY — Melting ice sheets may trigger an increase in global volcanic activity, according to researchers with the GEOMAR Helmholtz Centre for Ocean Research (based in Kiel, Germany), and Harvard, who matched historic geological records of vulcanism with warm climate periods.
“In times of global warming, glaciers on the continents are melting relatively quickly. At the same time the sea level rises. The weight on the continents decreases, while the weight on the oceanic tectonic plates increases. Thus, the stress changes within in the earth to open more routes for ascending magma,” said GEOMAR’s Dr Mario Jegen. (more…)
Filed under: climate and weather, global warming, world news | Tagged: climate, Earth Sciences, Geology, global warming, vulcanism | 1 Comment »
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