气候变化领域集成服务门户(CCPortal): Apparent paleomagnetic rotations reveal Pliocene-Holocene internal deformation of the Tengchong Block, southeastern Tibetan Plateau

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	Apparent paleomagnetic rotations reveal Pliocene-Holocene internal deformation of the Tengchong Block, southeastern Tibetan Plateau
	Kornfeld, Daniela; Sonntag, Benita-Lisette; Gast, Simon; Matthes, Jonathan; Ratschbacher, Lothar; Pfaender, Joerg A.; Eckert, Sabine; Liu, Deliang; Appel, Erwin; Ding, Lin
通讯作者	Appel, E (通讯作者)
发表日期	2014
ISSN	1367-9120
EISSN	1878-5786
起始页码	1
结束页码	16
卷号	96
英文摘要	We present new paleomagnetic data from early Pliocene to Holocene volcanic rocks of the Tengchong volcanic field and Mangbang basin of the Tengchong (Lhasa) Block, Yunnan, along the eastern margin of the India-Asia collision zone. Two remanent magnetization components occur: a higher coercive one, carried by Ti-rich titanomagnetite and magnetite and likely of primary origin, and a lower coercive one, residing in magnetite and representing a more recent overprint. The Pleistocene-Holocene rocks of the Tengchong volcanic field yield an in situ overall mean direction of D/I = 352.5 degrees/25.4 degrees, indicating a southeastward tilt; we attribute the tilting to block rotation above listric normal faults that cut the Tengchong volcanic field. The in situ overall mean direction derived from Pliocene volcanic rocks of the Mangbang basin is D/I = 330.5 degrees/54.2 degrees. We explain this apparent counterclockwise rotation by northeastward tilting due to half-graben formation during normal faulting along the Nuangdeng fault zone along the eastern basin margin. (C) 2014 Elsevier Ltd. All rights reserved.
关键词	EASTERN HIMALAYAN SYNTAXIS THAI-MALAY BLOCK WESTERN YUNNAN SHEAR ZONE CLOCKWISE ROTATION CRETACEOUS ROCKS INDO-CHINA BAOSHAN BLOCK CONSTRAINTS SYSTEM
英文关键词	Paleomagnetism; Ar-40-Ar-39 geochronology; Tibetan Plateau; Tengchong Block; Late Cenozoic deformation
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000347023300001
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258307
推荐引用方式 GB/T 7714	Kornfeld, Daniela,Sonntag, Benita-Lisette,Gast, Simon,et al. Apparent paleomagnetic rotations reveal Pliocene-Holocene internal deformation of the Tengchong Block, southeastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2014,96.
APA	Kornfeld, Daniela.,Sonntag, Benita-Lisette.,Gast, Simon.,Matthes, Jonathan.,Ratschbacher, Lothar.,...&Ding, Lin.(2014).Apparent paleomagnetic rotations reveal Pliocene-Holocene internal deformation of the Tengchong Block, southeastern Tibetan Plateau.JOURNAL OF ASIAN EARTH SCIENCES,96.
MLA	Kornfeld, Daniela,et al."Apparent paleomagnetic rotations reveal Pliocene-Holocene internal deformation of the Tengchong Block, southeastern Tibetan Plateau".JOURNAL OF ASIAN EARTH SCIENCES 96(2014).