GEOLOGY: Canyon Cutting on a Grand Time Scale

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Science 7 March 2008:
Vol. 319. no. 5868, pp. 1343 - 1344
DOI: 10.1126/science.1155286

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Tim Atkinson¹ and Mike Leeder²

New data show how the Grand Canyon has been formed over the course of the past 20 million years.

¹Department of Earth Sciences, University College London, London WC1E 6BT, UK. E-mail: t.atkinson{at}ucl.ac.uk

²School of Environmental Sciences, University of East Anglia, Norwich NR4 7 TJ, UK. E-mail: m.leeder{at}uea.ac.uk

REPORTS Age and Evolution of the Grand Canyon Revealed by U-Pb Dating of Water Table-Type Speleothems: Victor Polyak, Carol Hill, and Yemane Asmerom (7 March 2008)
Science 319 (5868), 1377. [DOI: 10.1126/science.1151248]
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