Neoproterozoic Arc - related mafic intrusions along the Northern Margin of South China: implications for accretion of Rodinia
South China has been considered as part of the Rodinian supercontinent during Neoproterozoic time, although itspaleogeographic position within this supercontinent is still a matter of debate. The Wangjiangshan and Bijigou complexesalong the northern margin of South China are among the largest mafic...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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University of Chicago Press
2002
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| Online Access: | http://hdl.handle.net/20.500.11937/31454 |
| _version_ | 1848753385180758016 |
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| author | Zhou, M. Kennedy, Allen Sun, M. Malpas, J. Lescher, C. |
| author_facet | Zhou, M. Kennedy, Allen Sun, M. Malpas, J. Lescher, C. |
| author_sort | Zhou, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | South China has been considered as part of the Rodinian supercontinent during Neoproterozoic time, although itspaleogeographic position within this supercontinent is still a matter of debate. The Wangjiangshan and Bijigou complexesalong the northern margin of South China are among the largest mafic intrusions in China. New SHRIMPzircon U-Pb results indicate that these two intrusions have crystallization ages of 820 Ma and 780 Ma, respectively.Enrichment of large ion lithophile and light rare earth elements and depletion of high field-strength elements in theseintrusions suggest derivation from an active arc along a continental margin. This interpretation of these intrusionsas part of a continental arc assemblage is in contrast with the previous view that they were products of a Neoproterozoicmantle plume that initiated the breakup of Rodinia. The presence of a Neoproterozoic magmatic arc suggests thatRodinian oceanic lithosphere was subducted beneath the (present) northern margin of South China and therefore thatSouth China flanked the Rodinian ocean. |
| first_indexed | 2025-11-14T08:23:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-31454 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:23:40Z |
| publishDate | 2002 |
| publisher | University of Chicago Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-314542017-09-13T15:56:36Z Neoproterozoic Arc - related mafic intrusions along the Northern Margin of South China: implications for accretion of Rodinia Zhou, M. Kennedy, Allen Sun, M. Malpas, J. Lescher, C. South China has been considered as part of the Rodinian supercontinent during Neoproterozoic time, although itspaleogeographic position within this supercontinent is still a matter of debate. The Wangjiangshan and Bijigou complexesalong the northern margin of South China are among the largest mafic intrusions in China. New SHRIMPzircon U-Pb results indicate that these two intrusions have crystallization ages of 820 Ma and 780 Ma, respectively.Enrichment of large ion lithophile and light rare earth elements and depletion of high field-strength elements in theseintrusions suggest derivation from an active arc along a continental margin. This interpretation of these intrusionsas part of a continental arc assemblage is in contrast with the previous view that they were products of a Neoproterozoicmantle plume that initiated the breakup of Rodinia. The presence of a Neoproterozoic magmatic arc suggests thatRodinian oceanic lithosphere was subducted beneath the (present) northern margin of South China and therefore thatSouth China flanked the Rodinian ocean. 2002 Journal Article http://hdl.handle.net/20.500.11937/31454 10.1086/341762 University of Chicago Press fulltext |
| spellingShingle | Zhou, M. Kennedy, Allen Sun, M. Malpas, J. Lescher, C. Neoproterozoic Arc - related mafic intrusions along the Northern Margin of South China: implications for accretion of Rodinia |
| title | Neoproterozoic Arc - related mafic intrusions along the Northern Margin of South China: implications for accretion of Rodinia |
| title_full | Neoproterozoic Arc - related mafic intrusions along the Northern Margin of South China: implications for accretion of Rodinia |
| title_fullStr | Neoproterozoic Arc - related mafic intrusions along the Northern Margin of South China: implications for accretion of Rodinia |
| title_full_unstemmed | Neoproterozoic Arc - related mafic intrusions along the Northern Margin of South China: implications for accretion of Rodinia |
| title_short | Neoproterozoic Arc - related mafic intrusions along the Northern Margin of South China: implications for accretion of Rodinia |
| title_sort | neoproterozoic arc - related mafic intrusions along the northern margin of south china: implications for accretion of rodinia |
| url | http://hdl.handle.net/20.500.11937/31454 |