Identifying impact events within the lunar cataclysm from 40 Ar- 39 Ar ages and compositions of Apollo 16 impact melt rocks
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Norman, Marc; Duncan, Robert A.; Huard, John J.
Description
Lunar impact melt breccias provide a unique record of the timing and frequency of collisional events during the early history of the inner Solar System prior to the development of a significant rock record on Earth. The predominance of ages clustering between 3.8 and 4.0 Ga was a major, unexpected discovery obtained from geochronological studies of lunar impact melts, and is the basis of the concept that a cataclysmic bombardment of large planetesimals struck the Earth and Moon, and possibly...[Show more]
Collections | ANU Research Publications |
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Date published: | 2006 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/20344 |
Source: | Geochimica et Cosmochimica Acta |
DOI: | 10.1016/j.gca.2006.05.021 |
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01_Norman_Identifying_impact_events_2006.pdf | 1.03 MB | Adobe PDF | Request a copy |
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