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News Release 10-131

Triggers of Volcanic Eruptions in Oregon's Mount Hood Investigated

Mixing of two types of magma key to understanding volcano

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Photo showing Mount Hood, Oregon, looking north from the White River Valley.

A view of Mount Hood, Oregon, looking north from the White River Valley.

Credit: Adam Kent


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Photomicrograph of lava from Mount Hood.

Image of lava from Mount Hood; from crystals in the lava, geologists learn about the volcano.

Credit: Adam Kent


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Plot of weight percent silicon dioxide versus percentage of total for mount hood, mount st. helens.

Silicon dioxide in volcanic rocks from Mount Hood tells a story of the volcano's history.

Credit: Adam Kent


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