The Cretaceous stationary Lhasa terrane constrained by the paleolatitude of 103 Ma volcanic rocks from the Nima area

doi:10.1016/j.gloplacha.2022.103998

	Niu, Chao 1,2; Ma, Yiming 1,2,3; Wang, Huapei 2; Yang, Tianshui 4; Li, Haiyan 4; Han, Fei 2; Xu, Chang 1; Miao, Junxiang 2; Yang, Zongyong 3; Cai, Hongzhu 5; Gong, Wenpin 6; Zhang, Shihong 4
	The Cretaceous stationary Lhasa terrane constrained by the paleolatitude of 103 Ma volcanic rocks from the Nima area
Source Publication	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
	2023
Volume	220 Pages:16
DOI	10.1016/j.gloplacha.2022.103998
Language	英语
WOS Research Area	Physical Geography ; Geology
Abstract	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.
Keyword	Paleomagnetism Lhasa terrane Tibetan Plateau Continental collision Paleolatitude evolution
WOS ID	WOS:000899478200001
Indexed By	SCI
Citation statistics	Cited Times:6[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.gig.ac.cn/handle/344008/71523
Collection	同位素地球化学国家重点实验室
Corresponding Author	Ma, Yiming
Affiliation	1.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Hubei, Peoples R China 2.China Univ Geosci, Sch Geophys & Geomat, Paleomagnetism & Planetary Magnetism Lab, Wuhan 430074, Hubei, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China 4.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 5.China Univ Geosci, Sch Geophys & Geomat, Wuhan 430074, Hubei, Peoples R China 6.China Univ Geosci, Fac Engn, Wuhan 430074, Hubei, Peoples R China
Recommended Citation 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.

Files in This Item:
There are no files associated with this item.

If you have any objections to this item, please fill out the form below and the administrator will contact you as soon as possible.
Content:
Email：	*
Institution:
Verification Code:	Refresh

Any comments and suggestions are welcomed.
Title:	*
Content:
Email：	*
Verification Code:	Refresh

中国科学院广州地球化学研究所机构知识库