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Science 23 March 2007:
Vol. 315. no. 5819, pp. 1650 - 1651
DOI: 10.1126/science.315.5819.1650b
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News of the Week

GEOLOGY:
A Trace of the Earliest Plate Tectonics Turns Up in Greenland

Richard A. Kerr

A group of geologists has discovered the earliest known remnants--by billions of years--of plate tectonics, the large-scale movement of Earth's crust, they report on page 1704 of this issue of Science. (Read more.)

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Science. ISSN 0036-8075 (print), 1095-9203 (online)