Geochronological results from the Zhela Formation volcanics of the Tethyan Himalaya and their implications for the breakup of eastern Gondwana
Abstract The relationship between the Kerguelen mantle plume and the breakup of eastern Gondwana is still debated. The new Zircon SHRIMP U–Pb dating of 139.9 ± 4.6 Ma, as well as previous ages from the Zhela Formation volcanic rocks in the Tethyan Himalaya, show that the studied Zhela Formation volc...
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| Format: | Article |
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Nature Portfolio
2023-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-47268-5 |
| _version_ | 1797559580080734208 |
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| author | Jiacheng Liang Weiwei Bian Xianwei Jiao Wenxiao Peng Jiahui Ma Suo Wang Yiming Ma Shihong Zhang Huaichun Wu Haiyan Li Yuruo Shi Tianshui Yang |
| author_facet | Jiacheng Liang Weiwei Bian Xianwei Jiao Wenxiao Peng Jiahui Ma Suo Wang Yiming Ma Shihong Zhang Huaichun Wu Haiyan Li Yuruo Shi Tianshui Yang |
| author_sort | Jiacheng Liang |
| collection | DOAJ |
| description | Abstract The relationship between the Kerguelen mantle plume and the breakup of eastern Gondwana is still debated. The new Zircon SHRIMP U–Pb dating of 139.9 ± 4.6 Ma, as well as previous ages from the Zhela Formation volcanic rocks in the Tethyan Himalaya, show that the studied Zhela Formation volcanic rocks formed during the Late Jurassic-Early Cretaceous, rather than the Middle Jurassic. The calculated volume of the Comei-Bunbury igneous rocks is ~ 114,250 km3, which is compatible with the large igneous provinces and, consequently, the typical mantle plume models. The new date results, along with existing dates, show that the volcanism attributed to the Kerguelen mantle plume in the Tethyan Himalaya ranges from ca.147 Ma to ca.124 Ma, with two peaks at approximately 141 Ma and 133 Ma. This new finding, together with geochemical and palaeomagnetic data obtained from the Comei-Bunbury igneous rocks, indicate that the Kerguelen mantle plume contributed significantly to the breakup of eastern Gondwana and that eastern Gondwana first disintegrated and dispersed at ca.147 Ma, the Indian plate separated completely from the eastern Gondwana before ca.125 Ma. |
| first_indexed | 2024-03-10T17:47:25Z |
| format | Article |
| id | doaj.art-f0eb8448c6504918b8cb42f32efa5ebd |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T17:47:25Z |
| publishDate | 2023-11-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj.art-f0eb8448c6504918b8cb42f32efa5ebd2023-11-20T09:30:15ZengNature PortfolioScientific Reports2045-23222023-11-0113111310.1038/s41598-023-47268-5Geochronological results from the Zhela Formation volcanics of the Tethyan Himalaya and their implications for the breakup of eastern GondwanaJiacheng Liang0Weiwei Bian1Xianwei Jiao2Wenxiao Peng3Jiahui Ma4Suo Wang5Yiming Ma6Shihong Zhang7Huaichun Wu8Haiyan Li9Yuruo Shi10Tianshui Yang11State Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesSchool of Earth Sciences and Resources, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesBeijing SHRIMP Center, Institute of Geology, Chinese Academy of Geological SciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesAbstract The relationship between the Kerguelen mantle plume and the breakup of eastern Gondwana is still debated. The new Zircon SHRIMP U–Pb dating of 139.9 ± 4.6 Ma, as well as previous ages from the Zhela Formation volcanic rocks in the Tethyan Himalaya, show that the studied Zhela Formation volcanic rocks formed during the Late Jurassic-Early Cretaceous, rather than the Middle Jurassic. The calculated volume of the Comei-Bunbury igneous rocks is ~ 114,250 km3, which is compatible with the large igneous provinces and, consequently, the typical mantle plume models. The new date results, along with existing dates, show that the volcanism attributed to the Kerguelen mantle plume in the Tethyan Himalaya ranges from ca.147 Ma to ca.124 Ma, with two peaks at approximately 141 Ma and 133 Ma. This new finding, together with geochemical and palaeomagnetic data obtained from the Comei-Bunbury igneous rocks, indicate that the Kerguelen mantle plume contributed significantly to the breakup of eastern Gondwana and that eastern Gondwana first disintegrated and dispersed at ca.147 Ma, the Indian plate separated completely from the eastern Gondwana before ca.125 Ma.https://doi.org/10.1038/s41598-023-47268-5 |
| spellingShingle | Jiacheng Liang Weiwei Bian Xianwei Jiao Wenxiao Peng Jiahui Ma Suo Wang Yiming Ma Shihong Zhang Huaichun Wu Haiyan Li Yuruo Shi Tianshui Yang Geochronological results from the Zhela Formation volcanics of the Tethyan Himalaya and their implications for the breakup of eastern Gondwana Scientific Reports |
| title | Geochronological results from the Zhela Formation volcanics of the Tethyan Himalaya and their implications for the breakup of eastern Gondwana |
| title_full | Geochronological results from the Zhela Formation volcanics of the Tethyan Himalaya and their implications for the breakup of eastern Gondwana |
| title_fullStr | Geochronological results from the Zhela Formation volcanics of the Tethyan Himalaya and their implications for the breakup of eastern Gondwana |
| title_full_unstemmed | Geochronological results from the Zhela Formation volcanics of the Tethyan Himalaya and their implications for the breakup of eastern Gondwana |
| title_short | Geochronological results from the Zhela Formation volcanics of the Tethyan Himalaya and their implications for the breakup of eastern Gondwana |
| title_sort | geochronological results from the zhela formation volcanics of the tethyan himalaya and their implications for the breakup of eastern gondwana |
| url | https://doi.org/10.1038/s41598-023-47268-5 |
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