High resolution U-Pb ages of Ca-phosphates in Apollo 14 breccias: Implications for the age of the Imbrium impact

Previous age estimates of the Imbrium impact range from 3770 to 3920 Ma, with the latter being the most commonly accepted age of this basin-forming event. The occurrence of Ca-phosphates in Apollo 14 breccias, interpreted to represent ejecta formed by this impact, provides a new opportunity to date...

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Bibliographic Details
Main Authors: Merle, Renaud, Nemchin, Alexander, Grange, Marion, Whitehouse, M., Pidgeon, Robert
Format: Journal Article
Published: John Wiley & Sons, Inc. 2014
Online Access:http://hdl.handle.net/20.500.11937/19741