Widespread mixing and burial of Earth’s Hadean crust by asteroid impacts

S. Marchi (), W. F. Bottke, L. T. Elkins-Tanton, M. Bierhaus, K. Wuennemann, A. Morbidelli and D. A. Kring
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S. Marchi: Southwest Research Institute
W. F. Bottke: Southwest Research Institute
L. T. Elkins-Tanton: Carnegie Institution for Science
M. Bierhaus: Museum für Naturkunde
K. Wuennemann: Museum für Naturkunde
A. Morbidelli: Observatoire de la Côte d’Azur
D. A. Kring: Universities Space Research Association, Lunar and Planetary Institute

Nature, 2014, vol. 511, issue 7511, 578-582

Abstract: A new bombardment model of the early Earth, calibrated with existing lunar and terrestrial data, shows that the Earth’s surface would have been widely reprocessed by impacts through mixing and burial by impact-generated melt; the model may also explain the age distribution of ancient zircons and the absence of early terrestrial rocks.

Date: 2014
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DOI: 10.1038/nature13539

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