中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 广州地球化学研究所
  3. 中国科学院广州地球化学研究所
  4. 同位素地球化学国家重点实验室
The Cretaceous stationary Lhasa terrane constrained by the paleolatitude of 103 Ma volcanic rocks from the Nima area

文献类型：期刊论文

作者Niu, Chao1,6; Ma, Yiming1,2,6; Wang, Huapei1; Yang, Tianshui3; Li, Haiyan3; Han, Fei1; Xu, Chang6; Miao, Junxiang1; Yang, Zongyong2; Cai, Hongzhu5
刊名GLOBAL AND PLANETARY CHANGE
出版日期2023
卷号220页码:16
关键词Paleomagnetism Lhasa terrane Tibetan Plateau Continental collision Paleolatitude evolution
ISSN号0921-8181
DOI10.1016/j.gloplacha.2022.103998
英文摘要To constrain the paleolatitude evolution and orientation of the Lhasa terrane in the Cretaceous, we performed a paleomagnetic study on the Qushenla Formation volcanic rocks dated to-103 Ma near Nima County in the central part of the Lhasa terrane. Rock magnetism and magnetic petrography indicate that the primary magnetic carriers are magnetite and hematite that formed during initial cooling. A high-temperature component was isolated between-500 degrees C and-680 degrees C. The site-mean direction passes the fold tests at a 99% confidence level, yielding a mean inclination of 35.4 degrees for 18 sites after tilt correction. These results suggest that the volcanic rocks recorded a primary remnant magnetization, revealing a paleolatitude of-17.9 degrees N at-103 Ma for the reference point (29.0 degrees N, 87.5 degrees E) at the southern margin of the Lhasa terrane. Together with previous paleomagnetic results from the Lhasa terrane, our results indicate WNW-ESE elongation of the stationary Lhasa terrane at-6.7-19 degrees N during the Cretaceous. The paleolatitude evolution of the Lhasa terrane during the Jurassic-Cretaceous suggests that the Lhasa-Qiangtang collision occured at-155-132 Ma.
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000899478200001
源URL[http://ir.gig.ac.cn/handle/344008/71522]  
专题同位素地球化学国家重点实验室
通讯作者Ma, Yiming
作者单位1.China Univ Geosci, Sch Geophys & Geomat, Paleomagnetism & Planetary Magnetism Lab, Wuhan 430074, Hubei, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China
3.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China
4.China Univ Geosci, Fac Engn, Wuhan 430074, Hubei, Peoples R China
5.China Univ Geosci, Sch Geophys & Geomat, Wuhan 430074, Hubei, Peoples R China
6.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Niu, Chao,Ma, Yiming,Wang, Huapei,et al. The Cretaceous stationary Lhasa terrane constrained by the paleolatitude of 103 Ma volcanic rocks from the Nima area[J]. GLOBAL AND PLANETARY CHANGE,2023,220:16.
APA Niu, Chao.,Ma, Yiming.,Wang, Huapei.,Yang, Tianshui.,Li, Haiyan.,...&Zhang, Shihong.(2023).The Cretaceous stationary Lhasa terrane constrained by the paleolatitude of 103 Ma volcanic rocks from the Nima area.GLOBAL AND PLANETARY CHANGE,220,16.
MLA Niu, Chao,et al."The Cretaceous stationary Lhasa terrane constrained by the paleolatitude of 103 Ma volcanic rocks from the Nima area".GLOBAL AND PLANETARY CHANGE 220(2023):16.

入库方式： OAI收割

来源：广州地球化学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。