The late Paleozoic to Mesozoic evolution of the eastern margin of the Central Asian Orogenic Belt in China
© 2015 Elsevier Ltd. The north-east Central Asian Orogenic Belt (CAOB) in China records terminal closure of the Paleo-Asian Ocean in the mid- to late Permian along the Solonker-Xar Moron-Changchun suture. This marks the end of the overall northward movement of the Chinese blocks from a peri-Gondwana...
| Main Authors: | , |
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| Format: | Journal Article |
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Elsevier Ltd
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/15818 |
| _version_ | 1848748996782194688 |
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| author | Wilde, Simon Zhou, J. |
| author_facet | Wilde, Simon Zhou, J. |
| author_sort | Wilde, Simon |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2015 Elsevier Ltd. The north-east Central Asian Orogenic Belt (CAOB) in China records terminal closure of the Paleo-Asian Ocean in the mid- to late Permian along the Solonker-Xar Moron-Changchun suture. This marks the end of the overall northward movement of the Chinese blocks from a peri-Gondwana position toward Siberia and a switch in tectonic processes to those dominated by activity associated with the Paleo-Pacific plate to the east. Four distinct changes in tectonic regime can be recognised here in the late Paleozoic to early Mesozoic: (i) north-south compression resulted in orogenesis and gave way to post-collisional extension at ~260-250. Ma with the emplacement of A-type granites; (ii) almost coeval with this, there was an the onset of east-west extension from 250 to 225. Ma along the extreme eastern margin of the CAOB, when a seaway opened between the Songliao and Jiamusi/Khanka blocks; (iii) the onset of westerly-directed compression, associated with subduction of the Paleo-Pacific plate from ~210. Ma, resulted in re-amalgamation of the Jiamusi/Khanka block with the CAOB by ~190-180. Ma and the massive generation of Jurassic I-type granitoids throughout the region; finally (iv) a change to east-west extension from ~140. Ma onward resulted from roll-back of the Paleo-Pacific plate. This latter event was accompanied by the emplacement of S-type granitoids and the development of sedimentary basins and core complexes. It also accompanied a more widespread thinning or delamination of the lithosphere across most of north-east China during the Cretaceous. |
| first_indexed | 2025-11-14T07:13:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-15818 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:13:55Z |
| publishDate | 2015 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-158182017-09-13T14:07:15Z The late Paleozoic to Mesozoic evolution of the eastern margin of the Central Asian Orogenic Belt in China Wilde, Simon Zhou, J. © 2015 Elsevier Ltd. The north-east Central Asian Orogenic Belt (CAOB) in China records terminal closure of the Paleo-Asian Ocean in the mid- to late Permian along the Solonker-Xar Moron-Changchun suture. This marks the end of the overall northward movement of the Chinese blocks from a peri-Gondwana position toward Siberia and a switch in tectonic processes to those dominated by activity associated with the Paleo-Pacific plate to the east. Four distinct changes in tectonic regime can be recognised here in the late Paleozoic to early Mesozoic: (i) north-south compression resulted in orogenesis and gave way to post-collisional extension at ~260-250. Ma with the emplacement of A-type granites; (ii) almost coeval with this, there was an the onset of east-west extension from 250 to 225. Ma along the extreme eastern margin of the CAOB, when a seaway opened between the Songliao and Jiamusi/Khanka blocks; (iii) the onset of westerly-directed compression, associated with subduction of the Paleo-Pacific plate from ~210. Ma, resulted in re-amalgamation of the Jiamusi/Khanka block with the CAOB by ~190-180. Ma and the massive generation of Jurassic I-type granitoids throughout the region; finally (iv) a change to east-west extension from ~140. Ma onward resulted from roll-back of the Paleo-Pacific plate. This latter event was accompanied by the emplacement of S-type granitoids and the development of sedimentary basins and core complexes. It also accompanied a more widespread thinning or delamination of the lithosphere across most of north-east China during the Cretaceous. 2015 Journal Article http://hdl.handle.net/20.500.11937/15818 10.1016/j.jseaes.2015.05.005 Elsevier Ltd restricted |
| spellingShingle | Wilde, Simon Zhou, J. The late Paleozoic to Mesozoic evolution of the eastern margin of the Central Asian Orogenic Belt in China |
| title | The late Paleozoic to Mesozoic evolution of the eastern margin of the Central Asian Orogenic Belt in China |
| title_full | The late Paleozoic to Mesozoic evolution of the eastern margin of the Central Asian Orogenic Belt in China |
| title_fullStr | The late Paleozoic to Mesozoic evolution of the eastern margin of the Central Asian Orogenic Belt in China |
| title_full_unstemmed | The late Paleozoic to Mesozoic evolution of the eastern margin of the Central Asian Orogenic Belt in China |
| title_short | The late Paleozoic to Mesozoic evolution of the eastern margin of the Central Asian Orogenic Belt in China |
| title_sort | late paleozoic to mesozoic evolution of the eastern margin of the central asian orogenic belt in china |
| url | http://hdl.handle.net/20.500.11937/15818 |