Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island
It has been widely accepted that an active continental margin existed along the coast of Southeast China during the Mesozoic time that produced extensive magmatism in the region. However, there is little constraint as to when this active margin was first initiated. Here we present new SHRIMP U-Pb zi...
| Main Authors: | , , , |
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| Format: | Journal Article |
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University of Chicago Press
2006
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| Online Access: | http://hdl.handle.net/20.500.11937/18079 |
| _version_ | 1848749641475031040 |
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| author | Li, X.-H. Li, Zheng-Xiang Li, W.-X. Wang, Y. |
| author_facet | Li, X.-H. Li, Zheng-Xiang Li, W.-X. Wang, Y. |
| author_sort | Li, X.-H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | It has been widely accepted that an active continental margin existed along the coast of Southeast China during the Mesozoic time that produced extensive magmatism in the region. However, there is little constraint as to when this active margin was first initiated. Here we present new SHRIMP U-Pb zircon ages and geochemical and Sr-Nd isotopic data for syntectonic granites on Hainan Island. Our data demonstrate that these rocks, dated at 267-262 Ma, are typical of calc-alkaline I-type granites formed in continental arc environments. The age of this magmatic arc coincides with a sudden change in sedimentary environments in South China during the Permian time, suggesting that the South China Indosinian Orogeny was likely contemporaneous with the onset of continental arc magmatism. |
| first_indexed | 2025-11-14T07:24:10Z |
| format | Journal Article |
| id | curtin-20.500.11937-18079 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:24:10Z |
| publishDate | 2006 |
| publisher | University of Chicago Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-180792017-09-13T15:44:53Z Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island Li, X.-H. Li, Zheng-Xiang Li, W.-X. Wang, Y. Hainan Island arc magmatism SHRIMP U-Pb data Indosinian Orogeny Permian Mesozoic It has been widely accepted that an active continental margin existed along the coast of Southeast China during the Mesozoic time that produced extensive magmatism in the region. However, there is little constraint as to when this active margin was first initiated. Here we present new SHRIMP U-Pb zircon ages and geochemical and Sr-Nd isotopic data for syntectonic granites on Hainan Island. Our data demonstrate that these rocks, dated at 267-262 Ma, are typical of calc-alkaline I-type granites formed in continental arc environments. The age of this magmatic arc coincides with a sudden change in sedimentary environments in South China during the Permian time, suggesting that the South China Indosinian Orogeny was likely contemporaneous with the onset of continental arc magmatism. 2006 Journal Article http://hdl.handle.net/20.500.11937/18079 10.1086/501222 University of Chicago Press fulltext |
| spellingShingle | Hainan Island arc magmatism SHRIMP U-Pb data Indosinian Orogeny Permian Mesozoic Li, X.-H. Li, Zheng-Xiang Li, W.-X. Wang, Y. Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island |
| title | Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island |
| title_full | Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island |
| title_fullStr | Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island |
| title_full_unstemmed | Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island |
| title_short | Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island |
| title_sort | initiation of the indosinian orogeny in south china: evidence for a permian magmatic arc on hainan island |
| topic | Hainan Island arc magmatism SHRIMP U-Pb data Indosinian Orogeny Permian Mesozoic |
| url | http://hdl.handle.net/20.500.11937/18079 |