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TITLE: As Plates Spread, Iceland Grows

[Photo: Iceland]
Iceland straddles the North American and Eurasian Plates, which are separating at a rate of 2 cm (0.8 in) per year. Is the island being torn in two? Yes, but...basaltic lava that is erupted from the crest of the Mid-Atlantic Ridge, where it cuts across Iceland, builds the island as fast as it is torn apart.

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Smithsonian National Museum of Natural History Department of Mineral Sciences website Credits