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Terrestrial-like zircon in a clast from an Apollo 14 breccia

Bellucci, Jeremy J.; Nemchin, Alexander A.; Grange, Marion; Robinson, Katharine L.; Collins, Gareth; Whitehouse, M.J.; Snape, Joshua F.; Norman, Marc; Kring, David A.


A felsite clast in lunar breccia Apollo sample 14321, which has been interpreted as Imbrium ejecta, has petrographic and chemical features that are consistent with formation conditions commonly assigned to both lunar and terrestrial environments. A simple model of Imbrium impact ejecta presented here indicates a pre-impact depth of 30–70 km, i.e. near the base of the lunar crust. Results from Secondary Ion Mass Spectrometry trace element analyses indicate that zircon grains recovered from this...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2019.01.010


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