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Paleomagnetic Constraints on the Origin and Drift History of the North Qiangtang Terrane in the Late Paleozoic
Ma, Yiming; Wang, Qiang1,2; Wang, Jun2; Yang, Tianshui3; Tan, Xiaodong4; Dan, Wei; Zhang, Xiuzheng; Ma, Lin; Wang, Zilong2; Hu, Wanlong2; Zhang, Shihong3; Wu, Huaichun3; Li, Haiyan3; Cao, Liwan3
2019
Source PublicationGEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
Volume46Issue:2Pages:689
AbstractTo better constrain the origin and drift history of the North Qiangtang terrane (NQT), we report a well-dated paleomagnetic pole from the Late Permian volcanics of the NQT that appears to average out secular variation. Our new results yield a paleolatitude of -7.6 +/- 5.6 degrees N at -259 Ma for our sampling area, which confirms the NQT drifted northward during the Permian and Triassic periods. The equatorial paleolatitude of the NQT is similar to that of the coeval South China block, demonstrating that they were in close proximity. Combined with palaeontological and magmatic evidence, paleomagnetic constraints on the drift of the NQT in the Permian indicate that the NQT moved northward together with the South China block at this time. The paleolatitude evolution of the NQT implies that the NQT rifted from the northern margin of the Gondwana in the Devonian, which is earlier than the departure time of the South Qiangtang terrane. Plain Language Summary The Tibetan Plateau is composed of several different blocks that accreted to the southern margin of Asia. There are still several unanswered questions, such as the following: Where did these blocks originate? How did these blocks accrete to Asia? How did the oceanic basin evolve? In this work, we provide robust evidence to show that the Northern Qiangtang was located at equatorial latitude (-7.6 +/- 5.6 degrees N) during the Late Permian (similar to 259 Ma). The northward drift history together with features of the Northern Qiangtang and South China block indicates that they moved northward together during the Permian and that the Northern Qiangtang rifted from the northern margin of the Greater India margin of Gondwana during the Devonian.
DepartmentOMG
DOI10.1029/2018GL080964
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17982
Collection中科院边缘海地质重点实验室
Affiliation1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Guangdong, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing, Peoples R China
5.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Ma, Yiming,Wang, Qiang,Wang, Jun,et al. Paleomagnetic Constraints on the Origin and Drift History of the North Qiangtang Terrane in the Late Paleozoic[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(2):689, 697.
APA Ma, Yiming.,Wang, Qiang.,Wang, Jun.,Yang, Tianshui.,Tan, Xiaodong.,...&Cao, Liwan.(2019).Paleomagnetic Constraints on the Origin and Drift History of the North Qiangtang Terrane in the Late Paleozoic.GEOPHYSICAL RESEARCH LETTERS,46(2),689.
MLA Ma, Yiming,et al."Paleomagnetic Constraints on the Origin and Drift History of the North Qiangtang Terrane in the Late Paleozoic".GEOPHYSICAL RESEARCH LETTERS 46.2(2019):689.
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