Under Active Volcanoes, Magma Sits in Cold Storage

February 17, 2014 6:26 AM

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Under Active Volcanoes, Magma Sits in Cold Storage

Strike that iconic image of a tall, snow-capped volcano sitting atop a liquid pool of hot, molten magma. It turns out that many volcanoes prefer cold storage, a new study suggests.

The findings come from a detailed study of crystals in lavas at Oregon's Mount Hood, from two different eruptions 220 years ago and about 1,500 years ago. These crystals formed inside the volcano's magma chamber, and provide a chronology and a temperature history.

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