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Browsing Samuel Ginn College of Engineering by Author "Richardson, James E."
No Change in the Recent Lunar Impact Flux Required Based on Modeling of Impact Glass Spherule Age Distributions
Huang, Ya-Huei; Minton, David A.; Zellner, Nicolle E. B.; Hirabayashi, Masatoshi; Richardson, James E.; Fassett, Caleb I. (2020-05-27)
The distributions of Ar-40/Ar-39-derived ages of impact glass spherules in lunar regolith samples show an excess at <500 Ma relative to older ages. It has not been well understood whether this excess of young ages reflects ...