Journal article
Inferring a deep-crustal source terrane from a high-level granitic pluton: the Strathbogie Batholith, Australia
JD Clemens, GN Phillips
Contributions to Mineralogy and Petrology | Published : 2014
Abstract
The Strathbogie Igneous Complex is comprised of the ignimbritic rocks of the Violet Town Volcanics and the granitic rocks of the Strathbogie batholith. It is Late Devonian in age and postorogenic-extensional in tectonic setting. The batholith was constructed from peraluminous, metasediment-derived magmas emplaced as several internally heterogeneous plutons. Chemical variation in the magmas was largely inherited from the protolith rather than having been produced by differentiation (crystal–liquid separation) or magma mixing. The Strathbogie magmas formed during a granulite-facies metamorphic event that caused partial melting of the rocks of the Proterozoic Selwyn Block, which forms the basem..
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Funding Acknowledgements
We acknowledge the late Bruce Chappell for providing unpublished whole-rock analyses, Jim O'Neil and Bill Compston for providing some O and Sr isotope data, respectively, in 1981. JC is grateful to the South African NRF for providing funding for travel and analytical costs through its incentive scheme for rated researchers. We also acknowledge logistical support from Warrambie and Gowanvale farms during field work. We thank Martin Hughes for assembling the various geophysical datasets across central Victoria. These were collected by the Victorian Government as part of the Victorian Initiative for Minerals and Petroleum and provide the basis for many regional geological studies such as this. We also thank Janet Hergt and various student projects shared with NP for contributing valuable data. In his review, Ron Vernon provided many constructive suggestions for improvement of the manuscript. Another anonymous reviewer also provided useful comments and suggestions that helped improve the manuscript.