Major orogenic gold episode associated with Cordilleran-style tectonics related to the assembly of Paleoproterozoic Australia
New in situ sensitive high-resolution ion-microprobe (SHRIMP) U-Pb analyses of hydrothermal phosphates associated with orogenic gold mineralization in the Paleoproterozoic Ashburton and Pine Creek gold provinces of northern Australia provide ages of ca. 1740 and ca. 1730 Ma, respectively. Argon-argo...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Geological Society of America Inc
2005
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| Online Access: | http://hdl.handle.net/20.500.11937/9195 |
| _version_ | 1848745880418516992 |
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| author | Sener, A. Young, C. Groves, D. Krapez, Bryan Fletcher, Ian |
| author_facet | Sener, A. Young, C. Groves, D. Krapez, Bryan Fletcher, Ian |
| author_sort | Sener, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | New in situ sensitive high-resolution ion-microprobe (SHRIMP) U-Pb analyses of hydrothermal phosphates associated with orogenic gold mineralization in the Paleoproterozoic Ashburton and Pine Creek gold provinces of northern Australia provide ages of ca. 1740 and ca. 1730 Ma, respectively. Argon-argon analyses of gold-related hydrothermal mica from the Tanami gold province of northern Australia provide ages ca. 1730 Ma. It is important to note that late orogenic events across the western half of Australia coincide with gold metallogenesis across this time interval, in several widely separated provinces. Thus, this orogenic gold episode is interpreted to relate to tectonic events during the amalgamation of various continental blocks to form Paleoproterozoic Australia. It is potentially Earth's best-preserved record of orogenic gold formation during a major early Precambrian continental assembly event. |
| first_indexed | 2025-11-14T06:24:23Z |
| format | Journal Article |
| id | curtin-20.500.11937-9195 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:24:23Z |
| publishDate | 2005 |
| publisher | Geological Society of America Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-91952017-09-13T16:04:16Z Major orogenic gold episode associated with Cordilleran-style tectonics related to the assembly of Paleoproterozoic Australia Sener, A. Young, C. Groves, D. Krapez, Bryan Fletcher, Ian orogenic gold xenotime Tanami inlier SHRIMP data monazite Pine Creek inlier Ashburton province New in situ sensitive high-resolution ion-microprobe (SHRIMP) U-Pb analyses of hydrothermal phosphates associated with orogenic gold mineralization in the Paleoproterozoic Ashburton and Pine Creek gold provinces of northern Australia provide ages of ca. 1740 and ca. 1730 Ma, respectively. Argon-argon analyses of gold-related hydrothermal mica from the Tanami gold province of northern Australia provide ages ca. 1730 Ma. It is important to note that late orogenic events across the western half of Australia coincide with gold metallogenesis across this time interval, in several widely separated provinces. Thus, this orogenic gold episode is interpreted to relate to tectonic events during the amalgamation of various continental blocks to form Paleoproterozoic Australia. It is potentially Earth's best-preserved record of orogenic gold formation during a major early Precambrian continental assembly event. 2005 Journal Article http://hdl.handle.net/20.500.11937/9195 10.1130/G21017.1 Geological Society of America Inc restricted |
| spellingShingle | orogenic gold xenotime Tanami inlier SHRIMP data monazite Pine Creek inlier Ashburton province Sener, A. Young, C. Groves, D. Krapez, Bryan Fletcher, Ian Major orogenic gold episode associated with Cordilleran-style tectonics related to the assembly of Paleoproterozoic Australia |
| title | Major orogenic gold episode associated with Cordilleran-style tectonics related to the assembly of Paleoproterozoic Australia |
| title_full | Major orogenic gold episode associated with Cordilleran-style tectonics related to the assembly of Paleoproterozoic Australia |
| title_fullStr | Major orogenic gold episode associated with Cordilleran-style tectonics related to the assembly of Paleoproterozoic Australia |
| title_full_unstemmed | Major orogenic gold episode associated with Cordilleran-style tectonics related to the assembly of Paleoproterozoic Australia |
| title_short | Major orogenic gold episode associated with Cordilleran-style tectonics related to the assembly of Paleoproterozoic Australia |
| title_sort | major orogenic gold episode associated with cordilleran-style tectonics related to the assembly of paleoproterozoic australia |
| topic | orogenic gold xenotime Tanami inlier SHRIMP data monazite Pine Creek inlier Ashburton province |
| url | http://hdl.handle.net/20.500.11937/9195 |