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Protracted post-eruptive basaltic weathering of the Emeishan large igneous province constrained by U-Pb CA-ID-TIMS geochronology

文献类型：期刊论文

作者Gong, Zheng8,9; Crowley, James L.7; Kamo, Sandra L.6; Denyszyn, Steven W.1,5; Zhang, Maochao4,9; Li, Jun3,9; Liu, Yanmei2,9; Huang, Chengmin9
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2025-02-01
卷号659页码:18
关键词Paleosol Basaltic weathering Emeishan large igneous province Zircon U-Pb geochronology Global cooling
ISSN号0031-0182
DOI10.1016/j.palaeo.2024.112666
英文摘要The post eruptive basaltic weathering of the Emeishan large igneous province is proposed to cause early Wuchiapingian cooling globally. However, the endpoint of this cooling event has not been evaluated yet, preventing the further understanding of long-term interaction between climate and weathering. In this study, abundant thick and highly weathered basaltic paleosols at the Emeishan volcanic landscapes have been identified, providing direct evidence for intense post-eruptive basaltic weathering. By using CA-TIMS zircon U-Pb dating on paleosols and adjacent tuffs, the onset and the termination of the intense weathering are constrained to similar to 259.6 Ma and similar to 253.4 Ma, respectively. The onset of intense weathering is coincident with the early Wuchiapingian cooling, supporting the CO2-forced cooling model triggered by the post-eruptive basaltic weathering of the Emeishan large igneous province. Moreover, the temporal correlation between the long-term weathering and the paleoclimate and carbon isotope records indicate that this cooling is possible persisting until at similar to 253.4 Ma.
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:001394739100001
源URL[http://ir.gig.ac.cn/handle/344008/81857]  
专题中国科学院矿物学与成矿学重点实验室
通讯作者Huang, Chengmin
作者单位1.Univ Western Australia, Sch Earth Sci, 35 Stirling Highway, Crawley, WA 6009, Australia
2.Aba Teachers Univ, Wenchuan 623002, Peoples R China
3.Lanzhou City Univ, Coll Urban Environm, Lanzhou 730070, Peoples R China
4.Qingyuan Polytech, Qingyuan 511500, Peoples R China
5.MEM UNIV NEWFOUNDLAND, DEPT EARTH SCI, St John, NF A1B 3X5, Canada
6.Univ Toronto, Dept Earth Sci, Jack Satterly Geochronol Lab, Toronto, ON M5S 3B1, Canada
7.Boise State Univ, Dept Geosci, Boise, ID 83725 USA
8.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China
9.Sichuan Univ, Dept Environm Sci & Engn, Chengdu 610065, Peoples R China
推荐引用方式
GB/T 7714		 Gong, Zheng,Crowley, James L.,Kamo, Sandra L.,et al. Protracted post-eruptive basaltic weathering of the Emeishan large igneous province constrained by U-Pb CA-ID-TIMS geochronology[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2025,659:18.
APA Gong, Zheng.,Crowley, James L..,Kamo, Sandra L..,Denyszyn, Steven W..,Zhang, Maochao.,...&Huang, Chengmin.(2025).Protracted post-eruptive basaltic weathering of the Emeishan large igneous province constrained by U-Pb CA-ID-TIMS geochronology.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,659,18.
MLA Gong, Zheng,et al."Protracted post-eruptive basaltic weathering of the Emeishan large igneous province constrained by U-Pb CA-ID-TIMS geochronology".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 659(2025):18.

入库方式： OAI收割

来源：广州地球化学研究所

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