The Willouran basic province of South Australia: Its relation to the Guibei large igneous province in South China and the breakup of Rodinia
The Willouran Basic Province in South-Central Australia and the Guibei large igneous province (LIP) in the South China Block are two of the most prominent Neoproterozoic LIPs related to the breakup of the supercontinent Rodinia. The Willouran Basic Province is dominated by tholeiitic mafic dykes (th...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Elsevier Science BV
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/25074 |
| _version_ | 1848751606703587328 |
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| author | Wang, Xuan-ce Li, X. Li, Zheng-Xiang Liu, Y. Yang, Y. |
| author_facet | Wang, Xuan-ce Li, X. Li, Zheng-Xiang Liu, Y. Yang, Y. |
| author_sort | Wang, Xuan-ce |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The Willouran Basic Province in South-Central Australia and the Guibei large igneous province (LIP) in the South China Block are two of the most prominent Neoproterozoic LIPs related to the breakup of the supercontinent Rodinia. The Willouran Basic Province is dominated by tholeiitic mafic dykes (the Gairdner dykes), flood basalts (the Wooltana basalts), and mafic intrusions. The basaltic suites across a distance of more than 1000 km have similar immobile major element compositions, uniform tholeiitic OIB-type trace element distribution patterns, and identical Hf-Nd isotopic signatures. Geochemical analyses from this study imply that their generation may have involved both depleted and enriched mantle sources, similar to that of the Guibei LIP. The age distributions of the two LIPs are also comparable, peaking at ca. 825 Ma. This simultaneous flare-up of mafic magmatism in the two continents, including high-temperature lavas found in the South China Block, coincides with the starting up of widespread continental rifting in Rodinia. We thus speculate that the two LIPs could have been parts of a once contiguous LIP, which was dismembered during the breakup of Rodinia. This work thus provides additional support for the proposed South China-Australia connection in Rodinia. |
| first_indexed | 2025-11-14T07:55:24Z |
| format | Journal Article |
| id | curtin-20.500.11937-25074 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:55:24Z |
| publishDate | 2010 |
| publisher | Elsevier Science BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-250742017-09-13T15:52:51Z The Willouran basic province of South Australia: Its relation to the Guibei large igneous province in South China and the breakup of Rodinia Wang, Xuan-ce Li, X. Li, Zheng-Xiang Liu, Y. Yang, Y. Neoproterozoic - Willouran Basic Province - Wooltana basalts - Large igneous province - Mantle plume - Australia - South China - Rodinia The Willouran Basic Province in South-Central Australia and the Guibei large igneous province (LIP) in the South China Block are two of the most prominent Neoproterozoic LIPs related to the breakup of the supercontinent Rodinia. The Willouran Basic Province is dominated by tholeiitic mafic dykes (the Gairdner dykes), flood basalts (the Wooltana basalts), and mafic intrusions. The basaltic suites across a distance of more than 1000 km have similar immobile major element compositions, uniform tholeiitic OIB-type trace element distribution patterns, and identical Hf-Nd isotopic signatures. Geochemical analyses from this study imply that their generation may have involved both depleted and enriched mantle sources, similar to that of the Guibei LIP. The age distributions of the two LIPs are also comparable, peaking at ca. 825 Ma. This simultaneous flare-up of mafic magmatism in the two continents, including high-temperature lavas found in the South China Block, coincides with the starting up of widespread continental rifting in Rodinia. We thus speculate that the two LIPs could have been parts of a once contiguous LIP, which was dismembered during the breakup of Rodinia. This work thus provides additional support for the proposed South China-Australia connection in Rodinia. 2010 Journal Article http://hdl.handle.net/20.500.11937/25074 10.1016/j.lithos.2010.08.011 Elsevier Science BV fulltext |
| spellingShingle | Neoproterozoic - Willouran Basic Province - Wooltana basalts - Large igneous province - Mantle plume - Australia - South China - Rodinia Wang, Xuan-ce Li, X. Li, Zheng-Xiang Liu, Y. Yang, Y. The Willouran basic province of South Australia: Its relation to the Guibei large igneous province in South China and the breakup of Rodinia |
| title | The Willouran basic province of South Australia: Its relation to the Guibei large igneous province in South China and the breakup of Rodinia |
| title_full | The Willouran basic province of South Australia: Its relation to the Guibei large igneous province in South China and the breakup of Rodinia |
| title_fullStr | The Willouran basic province of South Australia: Its relation to the Guibei large igneous province in South China and the breakup of Rodinia |
| title_full_unstemmed | The Willouran basic province of South Australia: Its relation to the Guibei large igneous province in South China and the breakup of Rodinia |
| title_short | The Willouran basic province of South Australia: Its relation to the Guibei large igneous province in South China and the breakup of Rodinia |
| title_sort | willouran basic province of south australia: its relation to the guibei large igneous province in south china and the breakup of rodinia |
| topic | Neoproterozoic - Willouran Basic Province - Wooltana basalts - Large igneous province - Mantle plume - Australia - South China - Rodinia |
| url | http://hdl.handle.net/20.500.11937/25074 |