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Targeting the impactors: siderophile element signatures of lunar impact melts from Serenitatis

Norman, Marc; Bennett, Victoria; Ryder, Graham


Highly siderophile element compositions of lunar impact melt breccias provide a unique record of the asteroid population responsible for large cratering events in the inner Solar System. Melt breccias associated with the 3.89 Ga Serenitatis impact basin resolve at least two separate impact events. KREEP-rich melt breccias representing the Apollo 17 poikilitic suite are enriched in highly siderophile elements. (3.6-15.8 ppb Ir) with Cl-normalized patterns that are elevated in Re, Ru and Pd...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Earth and Planetary Science Letters
DOI: 10.1016/S0012-821X(02)00780-X


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