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Geochemistry of impactites

Koeberl, Christian, Claeys, Philippe, Hecht, Lutz and McDonald, Iain 2012. Geochemistry of impactites. Elements 8 (1) , pp. 37-42. 10.2113/gselements.8.1.37

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Abstract

Geochemical analysis is an essential tool for the confirmation and study of impact structures and the characterization of the various rock types involved (target rocks, impact breccias, melt rocks, etc.). Concentrations and interelement ratios of the platinum-group elements, as well as the osmium and chromium isotope systems, allow quantification of extraterrestrial components and the identification of impactor types in impact deposits. In addition, chemolithostratigraphy can reveal the possible role of impacts in environmental change throughout the geologic record. This article deals predominantly with terrestrial impact structures.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Subjects: Q Science > QE Geology
Uncontrolled Keywords: impacts; ejecta; geochemistry; platinum-group elements; chromium; isotopes
Publisher: Mineralogical Society of America
ISSN: 1811-5209
Last Modified: 04 Jun 2017 04:46
URI: http://orca.cf.ac.uk/id/eprint/44572

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