气候变化领域集成服务门户(CCPortal): Reconstruction on regional paleo-drainage evolution in the northern Junggar Basin; China during the last ~27 myr from provenance analyses and its implications for uplift of the Altai Mountains

CCPortal

DOI	10.1016/j.palaeo.2019.109373
	Reconstruction on regional paleo-drainage evolution in the northern Junggar Basin; China during the last ~27 myr from provenance analyses and its implications for uplift of the Altai Mountains
	Li C.; Zheng D.; Sun J.; Yu J.; Ma Y.; Zhang H.; Wang Y.; Pang J.; Li Y.; Hao Y.
发表日期	2020
ISSN	0031-0182
卷号	537
英文摘要	Tectonic activity and climate change are regarded as two important driving forces on the evolution of large-scale drainage. The evolution of the Irtysh River and Ulungu River, two large-scale drainage systems in the northern Junggar Basin, can provide a key constraint on the uplift of the Altai Mountains and Central Asian aridification. However, we know little about the evolution of these two large-scale rivers. This study presents new detrital zircon U–Pb data from the late Oligocene to late Miocene sedimentary sequences and modern river sediments to reconstruct Cenozoic paleo-drainage evolution in the northern Junggar Basin. The detrital zircon U–Pb results show a single major population at 460-360 Ma, which is mainly derived from the Altai Mountains, for late Oligocene and early Miocene sequences, but two populations at 460-360 Ma and 340-200 Ma, which are mainly from the Altai Mountains and East Junggar terrane, for middle and late Miocene sequences. Our provenance study argues that the Irtysh River and Ulungu River in their modern extent did not exist prior ~18 Ma when the Altai Mountains allowed southward-flowing rivers to transport sediments into the inner Junggar Basin directly. The provenance shift in northern Junggar Basin at 17–18 Ma represents the progressive drainage expansion of the Ulungu River, evolving from relatively small rivers confined to the eastern Junggar Basin to a near-modern large-scale drainage system, due to the rapid uplift in the East Junggar terrane and eastern Altai Mountains in early Miocene. After ~6 Ma, the Irtysh River experienced a progressive drainage expansion, captured the southward-flowing tributaries of the Ulungu River and formed modern drainage pattern. Our study supports the initiation of exhumation before late Oligocene and a local tectonic uplift in early Miocene in Altai Mountains, which imply a complex deformation process in the Central Asia. © 2019 Elsevier B.V.
英文关键词	Central Asia; Detrital zircon U–Pb geochronology; Irtysh river; Tectonic uplift; Ulungu river
语种	英语
scopus关键词	Cenozoic; deformation mechanism; detrital deposit; exhumation; geochronology; Oligocene; provenance; reconstruction; tectonic setting; uplift; uranium-lead dating; zircon; Altai Mountains; Central Asia; China; East Junggar; Irtysh River; Junggar Basin; Xinjiang Uygur
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150747
作者单位	State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing, 100029, China; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou, 510640, China; Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China; University of Chinese Academy of Sciences, China; Department of Earth Sciences, University of Hong Kong, Pokfulam RoadHK, China
推荐引用方式 GB/T 7714	Li C.,Zheng D.,Sun J.,et al. Reconstruction on regional paleo-drainage evolution in the northern Junggar Basin; China during the last ~27 myr from provenance analyses and its implications for uplift of the Altai Mountains[J],2020,537.
APA	Li C..,Zheng D..,Sun J..,Yu J..,Ma Y..,...&Hao Y..(2020).Reconstruction on regional paleo-drainage evolution in the northern Junggar Basin; China during the last ~27 myr from provenance analyses and its implications for uplift of the Altai Mountains.Palaeogeography, Palaeoclimatology, Palaeoecology,537.
MLA	Li C.,et al."Reconstruction on regional paleo-drainage evolution in the northern Junggar Basin; China during the last ~27 myr from provenance analyses and its implications for uplift of the Altai Mountains".Palaeogeography, Palaeoclimatology, Palaeoecology 537(2020).