Journal article
Evidence for hybridisation in the Tynong Province granitoids, Lachlan Fold Belt, eastern Australia
KR Regmi, RF Weinberg, IA Nicholls, R Maas, M Raveggi
Australian Journal of Earth Sciences | TAYLOR & FRANCIS LTD | Published : 2016
Abstract
The role of mafic–felsic magma mixing in the formation of granites is controversial. Field evidence in many granite plutons undoubtedly implies interaction of mafic (basaltic–intermediate) magma with (usually) much more abundant granitic magma, but the extent of such mixing and its effect on overall chemical features of the host intrusion are unclear. Late Devonian I-type granitoids of the Tynong Province in the western Lachlan Fold Belt, southeast Australia, show typical evidence for magma mingling and mixing, such as small dioritic stocks, hybrid zones with local host granite and ubiquitous microgranitoid enclaves. The latter commonly have irregular boundaries and show textural features ch..
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Awarded by ARC
Funding Acknowledgements
We thank Ron Vernon, Tracy Rushmer and an anonymous reviewer for their comments that helped us improve this manuscript. This research was funded by the ARC Discovery Project DP110102543.