Short duration of Early Permian Qiangtang-Panjal large igneous province: Implications for origin of the Neo-Tethys Ocean
Short duration of Early Permian Qiangtang-Panjal large igneous province: Implications for origin of the Neo-Tethys Ocean
复制标题
早二叠世羌塘-旁佳大型火成岩省持续时间短：对新特提斯洋起源的启示
DOI：
10.1016/j.epsl.2021.117054
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发表时间：
2021-08
影响因子：
5.3
通讯作者：
Yue Qi
中科院分区：
文献类型：
--
作者：
Wei Dan;Qiang Wang;J. Brendan Murphy;Xiu-Zheng Zhang;Yi-Gang Xu;William M. White;Zi-Qi Jiang;Quan Ou;Lu-Lu Hao;Yue Qi
Northward drift of the Cimmerian microcontinents and opening of the Neo-Tethys Ocean in Early Permian are prominent events in northern Gondwana's protracted breakup history. However, the geodynamic setting responsible for these events is controversial. The dispersal of the eastern Cimmerian microcontinents was accompanied by the emplacement of Qiangtang-Panjal large igneous province (QP-LIP). Previously published zircon U-Pb data imply the QP-LIP was emplaced over a long interval (320-280 Ma) but are inconsistent with the short eruption interval constrained by biostratigraphic studies. New secondary ion mass spectrometry (SIMS) zircon U-Pb ages from 15 mafic dikes and gabbroic intrusions from the Southern Qiangtang terrane as well as age data from other parts of the QP-LIP show a much shorter duration (∼ 290− 285 Ma) for this LIP. The QP-LIP was characterized by an initial∼ 290 Ma alkalic and tholeiitic phases and a subsequent∼ 285 Ma tholeiitic phase, in agreement with regional biostratigraphic data constraining the timing of departure of the eastern Cimmerian microcontinents from Gondwana at∼ 285 Ma and the opening of the Neo-Tethys Ocean. The QP-LIP was most likely the consequence of the arrival in the upper mantle of a mantle plume beneath the northern Gondwanan margin. This event, in combination with slab pull associated with subduction beneath Laurasia, may have caused extension and rifting of east Cimmerian continental fragments from the northern margin of Gondwana. This study may elucidate the mechanism responsible for repeated episodes of one-way northward drifting terranes from northern Gondwana that commenced in Paleozoic.
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影响因子：
3.5
作者：
Herzberg, C.;Asimow, P. D.
通讯作者：
Asimow, P. D.
影响因子：
1.8
作者：
Wu Fuyuan;Wan Bo;Zhao Liang;Xiao Wenjiao;Zhu Rixiang
通讯作者：
Wu Fuyuan;Wan Bo;Zhao Liang;Xiao Wenjiao;Zhu Rixiang
冈瓦纳大陆的早期鸟类：羌塘北部下二叠统熔岩的古地磁和古特提斯洋的地理
影响因子：
5.3
作者：
Song Peiping;Ding Lin;Li Zhenyu;Lippert Peter C.;Yue Yahui
通讯作者：
Yue Yahui
西藏羌塘中部石榴石-十字石白云母片岩揭示的俯冲侵蚀和随后的底侵过程的变质记录
DOI：
10.1002/2016gc006576
发表时间：
2017
期刊：
Geochemistry, Geophysics, Geosystems
影响因子：
--
作者：
Xiu-Zheng Zhang;Yong-Sheng Dong;Qiang Wang;Wei Dan;Chunfu Zhang;Wang Xu;Ming-Liang Huang
通讯作者：
Ming-Liang Huang
影响因子：
12.1
作者：
D. Sciunnach;E. Garzanti
通讯作者：
D. Sciunnach;E. Garzanti