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DOI	10.1016/j.gloplacha.2015.12.017
	Intensified tectonic deformation and uplift of the Altyn Tagh range recorded by rock magnetism and growth strata studies of the western Qaidam Basin, NE Tibetan Plateau
	Zhang, Tao; Han, Wenxia; Fang, Xiaomin; Zhang, Weilin; Song, Chunhui; Yan, Maodu
通讯作者	Fang, XM (通讯作者)
发表日期	2016
ISSN	0921-8181
EISSN	1872-6364
起始页码	54
结束页码	68
卷号	137
英文摘要	As the tectonical and geographical northern edge of the Tibetan Plateau, the evolution of the Altyn Tagh range has attracted wide attention. Precise dating of its activities is believed essential for understanding the possible mechanisms of the Tibetan Plateau uplift and its effects on climate changes. Under the framework of basin-mountain coupling, both magnetic susceptibility and rock magnetic researches were carried out in this study on the Late Cenozoic sediments of the Honggouzi (HGZ) section (ca. 17-5 Ma) in the western Qaidam Basin to explore the tectonic and climatic evolution as well as their interactions of the Altyn Tagh range. The obtained magnetic susceptibility record in the HGZ section displayed a two-step variation, which kept relatively low and stable values for sediments from the stratigraphic levels of 120-596 m (ca. 17-10 Ma) (stage I), but increased rapidly from 596 to 1014 m (ca. 10-5 Ma) (stage II). The rock magnetic results revealed that paramagnetic minerals or clay minerals, maghemite and hematite are dominant in stage I, which were replaced by magnetite and maghemite in stage II. A detailed comparison of magnetic susceptibility record in the HGZ section with regional tectonic and climate records was carried out. Combined with sedimentary facies, lithology and angular unconfarmity in the sequence, as well as seismostratigraphy data, paleocurrent and provenance analyses, the possible mechanisms for the magnetic susceptibility variation were explored. The results indicated a direct link between magnetic susceptibility change and the uplift of the Altyn Tagh range at ca. 10 Ma. (C) 2015 Elsevier B.V. All rights reserved.
关键词	MIDDLE MIOCENE CHINESE LOESS TARIM BASIN PALEOCLIMATIC SIGNIFICANCE CENOZOIC DEFORMATION EXHUMATION HISTORY QINGHAI PROVINCE FAULT SYSTEM NW CHINA EVOLUTION
英文关键词	Rock magnetism; Growth strata; Tectonic uplift; Altyn Tagh range; Qaidam Basin
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000370454700005
来源期刊	GLOBAL AND PLANETARY CHANGE
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/258719
推荐引用方式 GB/T 7714	Zhang, Tao,Han, Wenxia,Fang, Xiaomin,et al. Intensified tectonic deformation and uplift of the Altyn Tagh range recorded by rock magnetism and growth strata studies of the western Qaidam Basin, NE Tibetan Plateau[J]. 中国科学院青藏高原研究所,2016,137.
APA	Zhang, Tao,Han, Wenxia,Fang, Xiaomin,Zhang, Weilin,Song, Chunhui,&Yan, Maodu.(2016).Intensified tectonic deformation and uplift of the Altyn Tagh range recorded by rock magnetism and growth strata studies of the western Qaidam Basin, NE Tibetan Plateau.GLOBAL AND PLANETARY CHANGE,137.
MLA	Zhang, Tao,et al."Intensified tectonic deformation and uplift of the Altyn Tagh range recorded by rock magnetism and growth strata studies of the western Qaidam Basin, NE Tibetan Plateau".GLOBAL AND PLANETARY CHANGE 137(2016).