U-Pb Ages and Compositions of Apollo 14 Regolith Glasses
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U-Pb compositions of Apollo 14 impact glasses suggests two prominent age groups at 3.7 Ga and less than 1 Ga, with smaller clusters at 2.5 Ga and 1.3 Ga. The range of chemical compositions suggests multiple impact events contributed to these groups.
Norman, M. and Nemchin, A. and Grange, M. and Zeigler, R. and Whitehouse, M. and Muhling, J. and Merle, R. 2013. U-Pb Ages and Compositions of Apollo 14 Regolith Glasses, in Proceedings of the 76th Annual Meeting of the Meteoritical Society, Jul 29-Aug 7 2013. Edmonton, Canada: Lunar and Planetary Institute.
METEORITICS & PLANETARY SCIENCE
Department of Applied Geology