Linking magmatism with collision in an accretionary orogen
A compilation of U-Pb age, geochemical and isotopic data for granitoid plutons in the southern Central Asian Orogenic Belt (CAOB), enables evaluation of the interaction between magmatism and orogenesis in the context of Paleo-Asian oceanic closure and continental amalgamation. These constraints, in...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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Nature Publishing Group
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/9759 |
| _version_ | 1848746042516832256 |
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| author | Li, S. Chung, S. Wilde, Simon Wang, T. Xiao, W. Guo, Q. |
| author_facet | Li, S. Chung, S. Wilde, Simon Wang, T. Xiao, W. Guo, Q. |
| author_sort | Li, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A compilation of U-Pb age, geochemical and isotopic data for granitoid plutons in the southern Central Asian Orogenic Belt (CAOB), enables evaluation of the interaction between magmatism and orogenesis in the context of Paleo-Asian oceanic closure and continental amalgamation. These constraints, in conjunction with other geological evidence, indicate that following consumption of the ocean, collision-related calc-alkaline granitoid and mafic magmatism occurred from 255 ± 2 Ma to 251 ± 2 Ma along the Solonker-Xar Moron suture zone. The linear or belt distribution of end-Permian magmatism is interpreted to have taken place in a setting of final orogenic contraction and weak crustal thickening, probably as a result of slab break-off. Crustal anatexis slightly post-dated the early phase of collision, producing adakite-like granitoids with some S-type granites during the Early-Middle Triassic (ca. 251-245 Ma). Between 235 and 220 Ma, the local tectonic regime switched from compression to extension, most likely caused by regional lithospheric extension and orogenic collapse. Collision-related magmatism from the southern CAOB is thus a prime example of the minor, yet tell-tale linking of magmatism with orogenic contraction and collision in an archipelago-type accretionary orogen. |
| first_indexed | 2025-11-14T06:26:58Z |
| format | Journal Article |
| id | curtin-20.500.11937-9759 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:26:58Z |
| publishDate | 2016 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-97592017-09-13T14:53:17Z Linking magmatism with collision in an accretionary orogen Li, S. Chung, S. Wilde, Simon Wang, T. Xiao, W. Guo, Q. A compilation of U-Pb age, geochemical and isotopic data for granitoid plutons in the southern Central Asian Orogenic Belt (CAOB), enables evaluation of the interaction between magmatism and orogenesis in the context of Paleo-Asian oceanic closure and continental amalgamation. These constraints, in conjunction with other geological evidence, indicate that following consumption of the ocean, collision-related calc-alkaline granitoid and mafic magmatism occurred from 255 ± 2 Ma to 251 ± 2 Ma along the Solonker-Xar Moron suture zone. The linear or belt distribution of end-Permian magmatism is interpreted to have taken place in a setting of final orogenic contraction and weak crustal thickening, probably as a result of slab break-off. Crustal anatexis slightly post-dated the early phase of collision, producing adakite-like granitoids with some S-type granites during the Early-Middle Triassic (ca. 251-245 Ma). Between 235 and 220 Ma, the local tectonic regime switched from compression to extension, most likely caused by regional lithospheric extension and orogenic collapse. Collision-related magmatism from the southern CAOB is thus a prime example of the minor, yet tell-tale linking of magmatism with orogenic contraction and collision in an archipelago-type accretionary orogen. 2016 Journal Article http://hdl.handle.net/20.500.11937/9759 10.1038/srep25751 http://creativecommons.org/licenses/by/4.0/ Nature Publishing Group fulltext |
| spellingShingle | Li, S. Chung, S. Wilde, Simon Wang, T. Xiao, W. Guo, Q. Linking magmatism with collision in an accretionary orogen |
| title | Linking magmatism with collision in an accretionary orogen |
| title_full | Linking magmatism with collision in an accretionary orogen |
| title_fullStr | Linking magmatism with collision in an accretionary orogen |
| title_full_unstemmed | Linking magmatism with collision in an accretionary orogen |
| title_short | Linking magmatism with collision in an accretionary orogen |
| title_sort | linking magmatism with collision in an accretionary orogen |
| url | http://hdl.handle.net/20.500.11937/9759 |