Northwest Africa 773: Lunar origin and iron-enrichment trend
Fagan, T.J.; Taylor, G Jeffrey; Keil, Frerich; Hicks, T.L.; Killgore, M; Bunch, T.E.; Wittke, J.H.; Mittlefehldt, David W; Clayton, R.N.; Mayeda, T K; Eugster, O.; Lorenzetti, S; Norman, Marc
Description
The meteorite Northwest Africa 773 (NWA 773) is a lunar sample with implications for the evolution of mafic magmas on the moon. A combination of key parameters including whole-rock oxygen isotopic composition, Fe/Mn ratios in mafic silicates, noble gas concentrations, a KREEP-like rare earth element pattern, and the presence of regolith agglutinate fragments indicate a lunar origin for NWA 773. Partial maskelynitization of feldspar and occasional twinning of pyroxene are attributed to shock...[Show more]
Collections | ANU Research Publications |
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Date published: | 2003 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/77006 |
Source: | Meteoritics and Planetary Science |
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