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Location and shape of the Lhasa terrane prior to India-Asia collision

文献类型：期刊论文

作者Bian, Weiwei1,2; Wang, Suo2; Yao, Yong1,3; Jiao, Xianwei2; Peng, Wenxiao2; Yang, Tianshui2; Zhang, Shihong2; Wu, Huaichun2; Li, Haiyan2; Deng, Chenglong1
刊名GEOLOGICAL SOCIETY OF AMERICA BULLETIN
出版日期2023-09-01
卷号135期号:9-10页码:2255-2274
ISSN号0016-7606
DOI10.1130/B36647.1
英文摘要The precollisional location and shape of the Lhasa terrane are crucial for constraining the closure of the Neo-Tethys Ocean and the ensuing India-Asia collision; however, estimation of these features of the Lhasa terrane remains highly controversial. Here, we carried out a new paleomagnetic investigation on the Lower Cretaceous Duoni Formation red beds in the central-eastern Lhasa terrane. The tilt-corrected site-mean direction is declination (D-s) = 339.0 degrees, inclination (I-s) = 26.8 degrees, k(s) = 78.4, and alpha(95) = 2.3 degrees (k-precision parameter; alpha(95)-the radius that the mean direction lies within 95% confidence; s-stratigraphic coordinates) (N = 50), corresponding to a paleopole at 64.2 degrees N, 324.2 degrees E, with A(95) = 1.9 degrees (A(95)-the radius that the mean pole lies within 95% confidence). These new paleomagnetic data pass a positive fold test and indicate that the studied area was located at 14.3 +/- 1.9 degrees N during the Early Cretaceous. No significant inclination shallowing is present in the Lower Cretaceous Duoni Formation red beds. Our new results, combined with previously published reliable Cretaceous paleomagnetic results, show that the Lhasa terrane was located at a paleolatitude of similar to 22.9 degrees N to 10.1 degrees N from west to east and was oriented at similar to 298 degrees-296 degrees prior to India-Asia collision.
WOS关键词CRETACEOUS PALEOMAGNETIC DATA ; TRIASSIC RED BEDS ; SOUTHERN MARGIN ; VOLCANIC-ROCKS ; QIANGTANG COLLISION ; TETHYAN OCEAN ; EURASIA PRIOR ; FOLD TEST ; U-PB ; CONSTRAINTS
资助项目National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[42004050] ; National Natural Science Foundation of China[41630104] ; Fundamental Research Funds for the Central Universities[2652022001]
WOS研究方向Geology
语种英语
出版者GEOLOGICAL SOC AMER, INC
WOS记录号WOS:001101571800005
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/111164]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Bian, Weiwei
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 101400, Peoples R China
推荐引用方式
GB/T 7714		 Bian, Weiwei,Wang, Suo,Yao, Yong,et al. Location and shape of the Lhasa terrane prior to India-Asia collision[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2023,135(9-10):2255-2274.
APA Bian, Weiwei.,Wang, Suo.,Yao, Yong.,Jiao, Xianwei.,Peng, Wenxiao.,...&Deng, Chenglong.(2023).Location and shape of the Lhasa terrane prior to India-Asia collision.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,135(9-10),2255-2274.
MLA Bian, Weiwei,et al."Location and shape of the Lhasa terrane prior to India-Asia collision".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 135.9-10(2023):2255-2274.

入库方式： OAI收割

来源：地质与地球物理研究所

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