Lava provides window on early Earth

Researchers at Harvard and the University of Hawaii believe they’ve resolved a long-standing controversy over the roots of islands — volcanoes in the middle of tectonic plates — showing that the islands’ lava provides a window into the early Earth’s makeup.

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<p><a href="http://www.physorg.com/news113234685.html">Lava provides window on early Earth</a></p> <p>Researchers at Harvard and the University of Hawaii believe they’ve resolved a long-standing controversy over the roots of islands — volcanoes in the middle of tectonic plates — showing that the islands’ lava provides a window into the early Earth’s makeup.</p>