Hafnium isotope evidence for a transition in the dynamics of continental growth 3.2 Gyr ago

T. Næraa (), A. Scherstén, M. T. Rosing, A. I. S. Kemp, J. E. Hoffmann, T. F. Kokfelt and M. J. Whitehouse
Additional contact information
T. Næraa: Geological Survey of Denmark and Greenland (GEUS), Øster Voldgade 10, 1350 Copenhagen K, Denmark
A. Scherstén: Lund University, Sölvegatan 12, 223 62 Lund, Sweden
M. T. Rosing: Nordic Center for Earth Evolution (NordCEE), Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen K, Denmark
A. I. S. Kemp: Centre for Exploration Targeting, School of Earth and Environment, University of Western Australia, Crawley, WA 6009 Australia
J. E. Hoffmann: Institut für Geologie und Mineralogie, Universität zu Köln, Zülpicher Strasse 49a, 50674 Köln, Germany
T. F. Kokfelt: Geological Survey of Denmark and Greenland (GEUS), Øster Voldgade 10, 1350 Copenhagen K, Denmark
M. J. Whitehouse: Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden

Nature, 2012, vol. 485, issue 7400, 627-630

Abstract: Hafnium isotope ratios obtained from zircons in southern West Greenland suggest that Earth’s ancient crustal growth changed around 3.2 Gyr ago to a modern geodynamic regime involving juvenile crust generation by plate tectonic processes.

Date: 2012
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DOI: 10.1038/nature11140

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