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Iceland volcano drilling suggests magma could become source of high-grade energy

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Geplaatst op 17 februari 2011 - 14:40

Iceland Volcano Drilling Suggests Magma Could Become Source of High-Grade Energy

Geologists drilling an exploratory geothermal well in 2009 in the Krafla volcano in Iceland encountered a problem they were simply unprepared for: magma (molten rock or lava underground) which flowed unexpectedly into the well at 2.1 kilometers (6,900 ft) depth, forcing the researchers to terminate the drilling.

"To the best of our knowledge, only one previous instance of magma flowing into a geothermal well while drilling has been documented," said Wilfred Elders, a professor emeritus of geology in the Department of Earth Sciences at the University of California, Riverside, who led the research team. "We were drilling a well that was designed to search for very deep -- 4.5 kilometers (15,000 feet) -- geothermal resources in the volcano. While the magma flow interrupted our project, it gave us a unique opportunity to study the magma and test a very hot geothermal system as an energy source."


Lees verder: http://www.scienceda...10216123545.htm

Bron: Science Daily

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