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Imbrium provenance for the Apollo 16 Descartes terrain: Argon ages and geochemistry of lunar breccias 67016 and 67455

Norman, Marc; Duncan, Robert A.; Huard, John J.

Description

In order to improve our understanding of impact history and surface geology on the Moon, we obtained40Ar-39Ar incremental heating age data and major + trace element compositions of anorthositic and melt breccia clasts from Apollo 16 feldspathic fragmental breccias 67016 and 67455. These breccias represent the Descartes terrain, a regional unit often proposed to be ejecta from the nearby Nectaris basin. The goal of this work is to better constrain the emplacement age and provenance of the...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
URI: http://hdl.handle.net/1885/39599
Source: Geochimica et Cosmochimica Acta
DOI: 10.1016/j.gca.2009.10.024

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