气候变化领域集成服务门户(CCPortal): Formation and re-orientation of the Suerkuli Basin within the Altyn Tagh in northeastern Tibetan Plateau since late Miocene

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DOI	10.1016/j.palaeo.2020.109851
	Formation and re-orientation of the Suerkuli Basin within the Altyn Tagh in northeastern Tibetan Plateau since late Miocene
	Chang, Hong; Li, Leyi; Qiang, Xiaoke; Song, Yougui; Fu, Chaofeng; Fang, Xiaomin; An, Zhisheng
通讯作者	Chang, H (通讯作者)
发表日期	2020
ISSN	0031-0182
EISSN	1872-616X
卷号	556
英文摘要	The Altyn Tagh Fault (ATF) had formed in Eocene time, however, the temporal evolution of slip along the fault remains elusive, despite its important role in governing growth of the Tibetan Plateau (TP) and evaluating models of continental lithosphere deformation. Here we perform a high-resolution magnetostratigraphic study on Neogene sediments from the Suerkuli Basin, a small basin located between two active strands of the ATF. Results show that both depositional environment and the sedimentation rate changed at about 5.4 and 6 Ma, respectively. Lithofacies shift from conglomerates and sandstones with parallel and cross beddings to mudstones with horizontal bedding, suggesting a sedimentary fluvial to lacustrine depositional environment shift. Even aridification increased over northern China, from the Tarim Basin to the Qaidam Basin, during late Miocene to early Pliocene times, lacustrine deposition had started in the Suerkuli Basin still. We argue that an increase in slip rate along the ATF triggered concurrently forming of the intermontane basin. The inferred timing of increased slip-rate on the ATF coincides with a variation in movement of the Indian Plate relative to Eurasian Plate since Late Miocene-Early Pliocene time. Our work suggests that a re-orientation of crustal shortening and deformation in the northern TP began since late Miocene and supports the idea that the modern boundary of the TP orogen had rejuvenated to adjust deformation in plate boundary conditions.
关键词	APATITE FISSION-TRACK RESOLUTION MAGNETO STRATIGRAPHY CENOZOIC TECTONIC EVOLUTION NORTHERN QAIDAM BASIN QUATERNARY SLIP RATE PULL-APART BASIN CLIMATE-CHANGE TARIM BASIN FAULT SYSTEM QILIAN SHAN
英文关键词	Altyn Tagh Fault; Depositional environment; Magnetostratigraphy; Sedimentation rate; Climatic change; Pull-apart basin
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000561370700002
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
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/259910
推荐引用方式 GB/T 7714	Chang, Hong,Li, Leyi,Qiang, Xiaoke,et al. Formation and re-orientation of the Suerkuli Basin within the Altyn Tagh in northeastern Tibetan Plateau since late Miocene[J]. 中国科学院青藏高原研究所,2020,556.
APA	Chang, Hong.,Li, Leyi.,Qiang, Xiaoke.,Song, Yougui.,Fu, Chaofeng.,...&An, Zhisheng.(2020).Formation and re-orientation of the Suerkuli Basin within the Altyn Tagh in northeastern Tibetan Plateau since late Miocene.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,556.
MLA	Chang, Hong,et al."Formation and re-orientation of the Suerkuli Basin within the Altyn Tagh in northeastern Tibetan Plateau since late Miocene".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 556(2020).