Strike-slip movement of the Altyn Tagh fault and implications for;mountain formation inferred from paleomagnetic data in northeastern;Tibetan Plateau

	Strike-slip movement of the Altyn Tagh fault and implications for;mountain formation inferred from paleomagnetic data in northeastern;Tibetan Plateau
	Sun ZhiMing 4; Li HaiBing ; Pei JunLing ; Xu Wei ; Pan JiaWei ; Si JiaLiang ; Zao LaiShi ; Zhao Yue
刊名	ACTA PETROLOGICA SINICA
	2012
卷号	28 期号:6;SI SI 页码:1928-1936
关键词	Rotation Paleomagnetism the Altyn Tagh fault Tibetan Plateau
ISSN号	966DE
英文摘要	To help understand the deformational history of the northeastern Tibetan Plateau, paleomagnetic samples were collected from 38 sites in the Early Cretaceous to Pliocene sedimentary and volcanic rocks distributed in four general regions adjacent to the Altyn Tagh fault at the northeastern edge of the Tibetan Plateau. In the Changma area, 10 sites in the Early Cretaceous sediments and basalt flows yield a mean paleomagnetic direction (D-s = 32.8 degrees, I = 59.4 degrees, kappa(s) = 36.2, alpha(95) = 8.1 degrees), and 8 sites in Early Cretaceous basalt flows from the Beidayao area provide a concordant paleomagnetic direction (D-s = 335.4 degrees, I-s = 55.1 degrees, kappa(s) = 34, alpha(95) = 9.6 degrees). The Early Cretaceous paleomagnetic directions from 15 sites in the Early Cretaceous sediments and basalt flows have a concordant mean paleomagnetic direction (D-s = 26.1 degrees, I-s = 49.5 degrees, kappa(s) = 28.6, alpha(95) = 7.3 degrees). 4 sites in Pliocene strata at Hanxia area yield a paleomagnetic direction (D-s = 355.4 degrees, I-s = 48.3 degrees, kappa(s) = 135.8, alpha(95) = 7.9 degrees). Fold or reversal tests imply primary magnetizations. Together with previously published paleomagnetic data in the Qaidam basin and its surroundings, these new results indicate that (1) the Qaidam block has not undergone wholescale vertical axis rotation with respect to the stable Eurasia due to the penetration of India into Asia; (2) occurrence of vertical axis clockwise rotations in areas adjacent to the eastern edge of the Altyn Tagh fault may be an important tectonic model to absorb the India-Asia collision-induced left-slip movement of the Altyn Tagh fault at the northeastern edge of the Tibetan Plateau.
学科主题	构造地质学
WOS关键词	QAIDAM BASIN ; CENTRAL-ASIA ; CHINA ; ROTATION ; FIELD ; MAGNETOSTRATIGRAPHY ; CONSTRAINTS ; SEDIMENTS ; VELOCITY ; SYSTEM
WOS研究方向	Geology
语种	中文
WOS记录号	WOS:000305817000015
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39884]
专题	中国地质科学院地质研究所
作者单位	1.CAGS, Inst Geomech, Paleomagnet Lab, Beijing 100081, Peoples R China. 2.CAGS, Inst Geol, State Key Lab Continental Geodynam, Beijing 100037, Peoples R China. 3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China. 4.中国地质科学院地质力学研究所
推荐引用方式 GB/T 7714	Sun ZhiMing,Li HaiBing,Pei JunLing,et al. Strike-slip movement of the Altyn Tagh fault and implications for;mountain formation inferred from paleomagnetic data in northeastern;Tibetan Plateau[J]. ACTA PETROLOGICA SINICA,2012,28(6;SI SI):1928-1936.
APA	Sun ZhiMing.,Li HaiBing.,Pei JunLing.,Xu Wei.,Pan JiaWei.,...&Zhao Yue.(2012).Strike-slip movement of the Altyn Tagh fault and implications for;mountain formation inferred from paleomagnetic data in northeastern;Tibetan Plateau.ACTA PETROLOGICA SINICA,28(6;SI SI),1928-1936.
MLA	Sun ZhiMing,et al."Strike-slip movement of the Altyn Tagh fault and implications for;mountain formation inferred from paleomagnetic data in northeastern;Tibetan Plateau".ACTA PETROLOGICA SINICA 28.6;SI SI(2012):1928-1936.