Cretaceous provenance change in the Hegang Basin and its connection with the Songliao Basin, NE China: Evidence for lithospheric extension driven by palaeo-Pacific roll-back
The Cretaceous Hegang Basin is located on the Jiamusi Block, NE China, and separated from the Songliao Basin by the Lesser Xing'an Range (LXR). Seismic interpretation shows that the Chengzihe, Muling and Dongshan formations of the Hegang Basin thicken eastwards with westwards onlap, indicating...
| Main Authors: | , , , , , , |
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| Format: | Book Chapter |
| Published: |
Geological Society of London
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/26536 |
| _version_ | 1848752014580776960 |
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| author | Sun, M. Chen, H. Zhang, F. Wilde, Simon Minna, A. Lin, X. Yang, S. |
| author_facet | Sun, M. Chen, H. Zhang, F. Wilde, Simon Minna, A. Lin, X. Yang, S. |
| author_sort | Sun, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The Cretaceous Hegang Basin is located on the Jiamusi Block, NE China, and separated from the Songliao Basin by the Lesser Xing'an Range (LXR). Seismic interpretation shows that the Chengzihe, Muling and Dongshan formations of the Hegang Basin thicken eastwards with westwards onlap, indicating that the LXR existed as a palaeo-uplift during that period, whereas the Houshigou Formation shows no thickness change, indicating that the LXR was possibly under water at this time. This is supported by results of detrital zircon analysis from the Hegang Basin in which the Chengzihe Formation is dominated by approximately 180 Ma zircons, which can only be provided by the LXR, whereas the Houshigou Formation records no Early Jurassic ages. This view is consistent with previous studies of the Songliao Basin for a provenance change between the Denglouku and Quantou formations. We conclude that the LXR was a highland during deposition of the Chengzihe, Muling and Dongshan formations but that it was under water when the Houshigou Formation was deposited. There was thus a connection between the Hegang and Songliao basins, which marks an eastwards migration of the depositional and extensional centre of the Songliao-Hegang basin system. This eastwards migration implies lithospheric extension driven by palaeo-Pacific roll-back. |
| first_indexed | 2025-11-14T08:01:53Z |
| format | Book Chapter |
| id | curtin-20.500.11937-26536 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:01:53Z |
| publishDate | 2014 |
| publisher | Geological Society of London |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-265362017-09-13T15:27:12Z Cretaceous provenance change in the Hegang Basin and its connection with the Songliao Basin, NE China: Evidence for lithospheric extension driven by palaeo-Pacific roll-back Sun, M. Chen, H. Zhang, F. Wilde, Simon Minna, A. Lin, X. Yang, S. The Cretaceous Hegang Basin is located on the Jiamusi Block, NE China, and separated from the Songliao Basin by the Lesser Xing'an Range (LXR). Seismic interpretation shows that the Chengzihe, Muling and Dongshan formations of the Hegang Basin thicken eastwards with westwards onlap, indicating that the LXR existed as a palaeo-uplift during that period, whereas the Houshigou Formation shows no thickness change, indicating that the LXR was possibly under water at this time. This is supported by results of detrital zircon analysis from the Hegang Basin in which the Chengzihe Formation is dominated by approximately 180 Ma zircons, which can only be provided by the LXR, whereas the Houshigou Formation records no Early Jurassic ages. This view is consistent with previous studies of the Songliao Basin for a provenance change between the Denglouku and Quantou formations. We conclude that the LXR was a highland during deposition of the Chengzihe, Muling and Dongshan formations but that it was under water when the Houshigou Formation was deposited. There was thus a connection between the Hegang and Songliao basins, which marks an eastwards migration of the depositional and extensional centre of the Songliao-Hegang basin system. This eastwards migration implies lithospheric extension driven by palaeo-Pacific roll-back. 2014 Book Chapter http://hdl.handle.net/20.500.11937/26536 10.1144/SP413.2 Geological Society of London fulltext |
| spellingShingle | Sun, M. Chen, H. Zhang, F. Wilde, Simon Minna, A. Lin, X. Yang, S. Cretaceous provenance change in the Hegang Basin and its connection with the Songliao Basin, NE China: Evidence for lithospheric extension driven by palaeo-Pacific roll-back |
| title | Cretaceous provenance change in the Hegang Basin and its connection with the Songliao Basin, NE China: Evidence for lithospheric extension driven by palaeo-Pacific roll-back |
| title_full | Cretaceous provenance change in the Hegang Basin and its connection with the Songliao Basin, NE China: Evidence for lithospheric extension driven by palaeo-Pacific roll-back |
| title_fullStr | Cretaceous provenance change in the Hegang Basin and its connection with the Songliao Basin, NE China: Evidence for lithospheric extension driven by palaeo-Pacific roll-back |
| title_full_unstemmed | Cretaceous provenance change in the Hegang Basin and its connection with the Songliao Basin, NE China: Evidence for lithospheric extension driven by palaeo-Pacific roll-back |
| title_short | Cretaceous provenance change in the Hegang Basin and its connection with the Songliao Basin, NE China: Evidence for lithospheric extension driven by palaeo-Pacific roll-back |
| title_sort | cretaceous provenance change in the hegang basin and its connection with the songliao basin, ne china: evidence for lithospheric extension driven by palaeo-pacific roll-back |
| url | http://hdl.handle.net/20.500.11937/26536 |