Preliminary result and its tectonic implications of Middle Cambrian paleomagnetism in the Alashan and Hexi Corridor terrane

	Preliminary result and its tectonic implications of Middle Cambrian paleomagnetism in the Alashan and Hexi Corridor terrane
	Huang, BC ; Otofuji, YI ; Yang, ZY ; Zhu, RX
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2000-05-01
卷号	43 期号:3 页码:393-401
关键词	Alashan and Hexi Corridor terrane Middle Cambrian paleomagnetism
ISSN号	0001-5733
文献子类	Article
英文摘要	This study reports the paleomagnetic results of 107 orientated drill-core Middle Cambrian samples at 15 sites of the east of the Alashan and Hexi Corridor terrane. Detailed paleomagnetic and rock magnetic studies yield that sampled rocks are magnetically predominant of magnetite, and the high temperature component B4 passed fold test at the 95% confidence level. The directions of this component after tilt correction are significantly different from post-Silurian ones of the North China Block and the Alashan and Hexi Corridor terrane. The corresponding paleomagnetic pole is'. at 349.9 degrees E, 21.1 degrees N with A(95) = 14.9 degrees, which is close to that of the North China Block. This implies that no distinct latitudinal displacement occurred between the Alashan-Hexi Corridor terrane and the North China Block since the Middle Cambrian. Nonetheless, the Alashan and Hexi Corridor terrane may rotate counterclockwise about 15 with respect to the North China Block during the Middle Cambrian through to Late Cambrian. This rotation may indicate that there was an accreting course of the Alashan and Hexi Corridor terrane to the west of the North China Block, and then one united North China Block was formed in the Late Cambrian.
WOS关键词	NORTH CHINA BLOCK ; CONSTRAINTS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000087320900013
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/76153]
专题	中国科学院地质与地球物理研究所
通讯作者	Huang, BC
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China 2.Kobe Univ, Fac Sci, Dept Earth & Planetary Sci, Kobe, Hyogo 6578501, Japan 3.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Huang, BC,Otofuji, YI,Yang, ZY,et al. Preliminary result and its tectonic implications of Middle Cambrian paleomagnetism in the Alashan and Hexi Corridor terrane[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2000,43(3):393-401.
APA	Huang, BC,Otofuji, YI,Yang, ZY,&Zhu, RX.(2000).Preliminary result and its tectonic implications of Middle Cambrian paleomagnetism in the Alashan and Hexi Corridor terrane.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,43(3),393-401.
MLA	Huang, BC,et al."Preliminary result and its tectonic implications of Middle Cambrian paleomagnetism in the Alashan and Hexi Corridor terrane".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 43.3(2000):393-401.