Zircons from the Acraman impact melt rock (South Australia): Shock metamorphism, U–Pb and 40Ar/39Ar systematics, and implications for the isotopic dating of impact events

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Zircons from the Acraman impact melt rock (South Australia): Shock metamorphism, U–Pb and 40Ar/39Ar systematics, and implications for the isotopic dating of impact events

This study presents the first optical and scanning electron microscopic characterization and U–Pb SHRIMP dating results for zircon grains separated from the most likely autochthonous impact melt rock in the central domain of the large, ~40–90 km eroded Ediacaran Acraman impact structure in South Aus...

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Bibliographic Details
Main Authors:	Schmieder, M., Tohver, E., Jourdan, Fred, Denyszyn, S., Haines, P.
Format:	Journal Article
Published:	Elsevier Ltd 2015
Online Access:	http://hdl.handle.net/20.500.11937/13245

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