Tuesday, June 8, 2010

Hawaiian Volcanoes Observatory Geologist Sampling Lava

Geologists at Hawaiian Volcanoes Obseratory, (HVO), collect samples of lava from active flows to get information on temperature, gas content, and chemical composition of the lava. In this photo, a geologist braves extreme radiant heat to collect a sample from an 'a'a  flow. The photo on the bottom is a thermal image that shows the temperature gradient of the lava. The interior of the flow exceeds 1000 degrees celsius, (1800 degrees fahrenheit).
Photo: Hawaiian Volcanoes Observatory

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