Was there a Cambrian ocean in South China? – Insight from detrital provenance analyses
We use detrital provenance data from Cambrian sandstones to examine whether the Yangtze and Cathaysia blocks in South China were separated by an ocean during the Cambrian period. Zircons from the Cambrian sandstones exhibit a dominant ~800 Ma age peak in the central Yangtze Block, being sourced from...
| Main Authors: | , , |
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| Format: | Journal Article |
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Cambridge University Press
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/39545 |
| _version_ | 1848755619654270976 |
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| author | Yao, Weihua Li, Zheng-Xiang Li, W. |
| author_facet | Yao, Weihua Li, Zheng-Xiang Li, W. |
| author_sort | Yao, Weihua |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We use detrital provenance data from Cambrian sandstones to examine whether the Yangtze and Cathaysia blocks in South China were separated by an ocean during the Cambrian period. Zircons from the Cambrian sandstones exhibit a dominant ~800 Ma age peak in the central Yangtze Block, being sourced from the western Yangtze Block, whereas a ~980 Ma peak dominates in the northwestern Cathaysia Block, being sourced from an exotic continent once connected to Cathaysia. A mixed provenance with both age peaks is found in Cambrian sandstones from the southeastern Yangtze Block, indicating that detritus can travel from the Cathaysia Block to the Yangtze Block, and therefore arguing against the existence of a broad Cambrian ocean. |
| first_indexed | 2025-11-14T08:59:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-39545 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:59:11Z |
| publishDate | 2015 |
| publisher | Cambridge University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-395452017-09-13T16:03:55Z Was there a Cambrian ocean in South China? – Insight from detrital provenance analyses Yao, Weihua Li, Zheng-Xiang Li, W. detrital provenance Cambrian ocean South China U–Pb geochronology We use detrital provenance data from Cambrian sandstones to examine whether the Yangtze and Cathaysia blocks in South China were separated by an ocean during the Cambrian period. Zircons from the Cambrian sandstones exhibit a dominant ~800 Ma age peak in the central Yangtze Block, being sourced from the western Yangtze Block, whereas a ~980 Ma peak dominates in the northwestern Cathaysia Block, being sourced from an exotic continent once connected to Cathaysia. A mixed provenance with both age peaks is found in Cambrian sandstones from the southeastern Yangtze Block, indicating that detritus can travel from the Cathaysia Block to the Yangtze Block, and therefore arguing against the existence of a broad Cambrian ocean. 2015 Journal Article http://hdl.handle.net/20.500.11937/39545 10.1017/S0016756814000338 Cambridge University Press restricted |
| spellingShingle | detrital provenance Cambrian ocean South China U–Pb geochronology Yao, Weihua Li, Zheng-Xiang Li, W. Was there a Cambrian ocean in South China? – Insight from detrital provenance analyses |
| title | Was there a Cambrian ocean in South China? – Insight from detrital provenance analyses |
| title_full | Was there a Cambrian ocean in South China? – Insight from detrital provenance analyses |
| title_fullStr | Was there a Cambrian ocean in South China? – Insight from detrital provenance analyses |
| title_full_unstemmed | Was there a Cambrian ocean in South China? – Insight from detrital provenance analyses |
| title_short | Was there a Cambrian ocean in South China? – Insight from detrital provenance analyses |
| title_sort | was there a cambrian ocean in south china? – insight from detrital provenance analyses |
| topic | detrital provenance Cambrian ocean South China U–Pb geochronology |
| url | http://hdl.handle.net/20.500.11937/39545 |