气候变化领域集成服务门户(CCPortal): Magnetostratigraphy of the Suerkuli Basin indicates Pliocene (3.2 Ma) activity of the middle Altyn Tagh Fault, northern Tibetan Plateau

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DOI	10.1016/j.jseaes.2011.10.013
	Magnetostratigraphy of the Suerkuli Basin indicates Pliocene (3.2 Ma) activity of the middle Altyn Tagh Fault, northern Tibetan Plateau
	Chang, Hong; Ao, Hong; An, Zhisheng; Fang, Xiaomin; Song, Yougui; Qiang, Xiaoke
通讯作者	Chang, H (通讯作者)
发表日期	2012
ISSN	1367-9120
EISSN	1878-5786
起始页码	169
结束页码	175
卷号	44
英文摘要	The left-lateral strike-slip Altyn Tagh Fault (ATF) forming the northern boundary of the Tibetan Plateau accommodates parts of the overall convergence between the colliding Indian and Eurasian plates. Precise dating of the ATF activity is essential for understanding possible mechanisms of Tibetan Plateau deformation and uplift. Here we report a magnetostratigraphic study of the Suerkuli Basin deposits recording depositional changes during the ATF activity. Field investigations reveal a remarkable and widespread change in depositional environment in the Suerkuli Basin, i.e. a transformation from low-energy lacustrine deposits (grayish-green mud-siltstone and brown mud-siltstone) into high-energy alluviul fan deposits (poorly sorted gray pebble and cobble conglomerates). Detailed magnetostratigraphy of the 390-m-thick Daban section, at the southeastern margin of the Suerkuli Basin (38 degrees 43.09'N, 90 degrees 58.84'E), shows that this change in depositional facies occurred at similar to 3.2 Ma, accompanied by a remarkable increase in sediment accumulation rate. We attribute this depositional change to the Piocene tectonic activity of the middle ATF although the contribution of the Pliocene global climate deterioration cannot be excluded. (C) 2011 Elsevier Ltd. All rights reserved.
关键词	RESOLUTION MAGNETO STRATIGRAPHY TECTONIC UPLIFT QINGHAI PROVINCE QAIDAM BASIN DEFORMATION GROWTH CHINA ATLANTIC HISTORY OBLIQUE
英文关键词	Magnetostratigraphy; Altyn Tagh Fault; Tectonic uplift; Suerkuli Basin; Pliocene
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000300203200013
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/257975
推荐引用方式 GB/T 7714	Chang, Hong,Ao, Hong,An, Zhisheng,et al. Magnetostratigraphy of the Suerkuli Basin indicates Pliocene (3.2 Ma) activity of the middle Altyn Tagh Fault, northern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2012,44.
APA	Chang, Hong,Ao, Hong,An, Zhisheng,Fang, Xiaomin,Song, Yougui,&Qiang, Xiaoke.(2012).Magnetostratigraphy of the Suerkuli Basin indicates Pliocene (3.2 Ma) activity of the middle Altyn Tagh Fault, northern Tibetan Plateau.JOURNAL OF ASIAN EARTH SCIENCES,44.
MLA	Chang, Hong,et al."Magnetostratigraphy of the Suerkuli Basin indicates Pliocene (3.2 Ma) activity of the middle Altyn Tagh Fault, northern Tibetan Plateau".JOURNAL OF ASIAN EARTH SCIENCES 44(2012).