Plate tectonics got an early start | Science News

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Plate tectonics got an early start

The chemistry of minerals preserved in Australian rocks suggests tectonic activity for Earth’s earliest eon

By
11:56am, November 26, 2008

The chemical composition of ancient crystals now found in Australian rocks bolsters the notion that tectonic plates may have jostled across Earth’s surface more than 4 billion years ago.

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