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

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
	Fang, XM (Fang, Xiaomin)1,2; Zhang, WL (Zhang, Weilin)1,2; Song, CH (Song, Chunhui)4,5; Yan, MD (Yan, Maodu)1,2; Fang, XM ; Zhang, T (Zhang, Tao)2; Han, WX (Han, Wenxia)3
刊名	GLOBAL AND PLANETARY CHANGE
	2016
卷号	137 期号:0 页码:54-68
关键词	Chinese Loess Plateau Fission-track Thermochronology Middle Miocene Fault System Northwest China Tarim Basin Nw China Paleoclimatic Significance Cenozoic Deformation Exhumation History
DOI	10.1016/j.gloplacha.2015.12.017
文献子类	Article
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.
学科主题	地质学
语种	英语
WOS记录号	WOS:000370454700005
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/7765]
专题	青藏高原研究所_图书馆
通讯作者	Fang, XM
作者单位	1.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China 4.Sch Earth Sci, Lanzhou 730000, Peoples R China 5.Key Lab Western Chinas Mineral Resources Gansu Pr, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Fang, XM ,Zhang, WL ,Song, CH ,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]. GLOBAL AND PLANETARY CHANGE,2016,137(0):54-68.
APA	Fang, XM .,Zhang, WL .,Song, CH .,Yan, MD .,Fang, XM.,...&Han, WX .(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(0),54-68.
MLA	Fang, XM ,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 137.0(2016):54-68.