Petrogenesis of Granitoid and Greenstone Rocks in the Yalgoo Area, Murchison Domain of the Youanmi Terrane, Yilgarn Craton, Western Australia, with Emphasis on Granitoid-Hosted Gold Mineralization
Two groups of mafic volcanic rocks and three types of granitoids have been identified in the Yalgoo area of Western Australia. Granodiorite records ages of ~2760 Ma and biotite monzogranite ages of 2636 Ma. A 1.85 Ga dolerite dyke is the first Paleoproterozoic dyke identified from the Yilgarn Craton...
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| Format: | Thesis |
| Language: | English |
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Curtin University
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/2017 |
| Summary: | Two groups of mafic volcanic rocks and three types of granitoids have been identified in the Yalgoo area of Western Australia. Granodiorite records ages of ~2760 Ma and biotite monzogranite ages of 2636 Ma. A 1.85 Ga dolerite dyke is the first Paleoproterozoic dyke identified from the Yilgarn Craton. An indirect age of ~2.63 Ga is inferred for gold mineralization. Geochemical data indicate formation in a continental marginal arc with traces of Hadean crust. |
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