Zirconolite 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.
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 contra...
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| Format: | Journal Article |
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Springer
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/22688 |
| _version_ | 1848750939726413824 |
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| author | Rasmussen, Birger Mueller, A. Fletcher, Ian |
| author_facet | Rasmussen, Birger Mueller, A. Fletcher, Ian |
| author_sort | Rasmussen, Birger |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T07:44:48Z |
| format | Journal Article |
| id | curtin-20.500.11937-22688 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:44:48Z |
| publishDate | 2009 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-226882017-09-13T15:58:58Z Zirconolite 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. Rasmussen, Birger Mueller, A. Fletcher, Ian Zirconolite SHRIMP Yilgarn craton U-Pb dating Xenotime Gold mineralization 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. 2009 Journal Article http://hdl.handle.net/20.500.11937/22688 10.1007/s00410-008-0352-7 Springer restricted |
| spellingShingle | Zirconolite SHRIMP Yilgarn craton U-Pb dating Xenotime Gold mineralization Rasmussen, Birger Mueller, A. Fletcher, Ian Zirconolite 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. |
| title | Zirconolite 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. |
| title_full | Zirconolite 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. |
| title_fullStr | Zirconolite 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. |
| title_full_unstemmed | Zirconolite 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. |
| title_short | Zirconolite 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. |
| title_sort | zirconolite 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. |
| topic | Zirconolite SHRIMP Yilgarn craton U-Pb dating Xenotime Gold mineralization |
| url | http://hdl.handle.net/20.500.11937/22688 |