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dc.contributor.authorRasmussen, Birger
dc.contributor.authorMueller, A.
dc.contributor.authorFletcher, Ian
dc.date.accessioned2017-01-30T12:33:02Z
dc.date.available2017-01-30T12:33:02Z
dc.date.created2010-03-29T20:04:37Z
dc.date.issued2009
dc.identifier.citationRasmussen, Birger and Mueller, Andreas and Fletcher, Ian. 2009. Zirconolite and xenotime U-Pb age constraints on the emplacement of the Golden Mile Dolerite sill and gold mineralization at the Mt Charlotte mine, Eastern Goldfields Province, Yilgarn Craton, Western Australia. Contributions to Mineralogy and Petrology. 157 (5): pp. 559-572.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/22688
dc.identifier.doi10.1007/s00410-008-0352-7
dc.description.abstract

In situ SHRIMP U-Pb dating of magmatic zirconolite (CaZrTi2O7) in the Golden Mile Dolerite from the Mt Charlotte gold deposit (Yilgarn Craton, Australia) has yielded the first robust emplacement age (2,680 9 Ma) for the principle host-rock of gold mineralization in the Kalgoorlie district. In contrast, comagmatic zircon gave ages from approx 2.68 Ga to approx 2.17 Ga, reflecting isotopic resetting of high-U and -Th crystals. In situ SHRIMP analysis of hydrothermal xenotime (YPO4), which co-exists with gold in alteration pyrite, provided a Pb/Pb isochron age of 2,655 13 Ma. This date indicates that the youngest deposit in the Kalgoorlie district (Mt Charlotte) formed at approx 2.65 Ga, and provides a new minimum age for the structurally older Golden Mile deposit. Our results indicate that gold mineralization at Mt Charlotte is approx 50 million years older than indicated by recent 40Ar/39Ar dating and places new constraints on the timing of late-stage regional faulting (D4) in the province.

dc.publisherSpringer
dc.subjectZirconolite
dc.subjectSHRIMP
dc.subjectYilgarn craton
dc.subjectU-Pb dating
dc.subjectXenotime
dc.subjectGold mineralization
dc.titleZirconolite and xenotime U-Pb age constraints on the emplacement of the Golden Mile Dolerite silland gold mineralization at the Mt Charlotte mine, Eastern Goldfields Province, Yilgarn Craton, Western Australia.
dc.typeJournal Article
dcterms.source.volume157
dcterms.source.startPage559
dcterms.source.endPage572
dcterms.source.issn0010-7999
dcterms.source.titleContributions to Mineralogy and Petrology
curtin.note

The original publication is available at : http://www.springerlink.com

curtin.accessStatusFulltext not available
curtin.facultyDepartment of Applied Geology
curtin.facultyFaculty of Science and Engineering
curtin.facultyWA School of Mines


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