Volcanic Arcs (IMAGE)

Woods Hole Oceanographic Institution

Volcanic Arcs

Caption

The melting of intensely-mixed mélange rocks transports materials that generate lavas at volcanic arcs, such as this one at Krakatau (above), part of the Sunda volcanic island arc in Indonesia. These curving chains of volcanoes form above subduction zones, where a large fraction of Earth's volcanic and earthquake hazards occur.

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iStock.com, Byelikova Oksana

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Licensing required to use the image: http://www.istockphoto.com/photo/boat-near-anak-krakatau-gm504486919-44321296 Credit: Byelikova_Oksana, Getty Images

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