干旱区生态环境知识资源中心(Arid): Westerly aridity in the western Tarim Basin driven by global cooling since the mid-Pleistocene transition

Arid

DOI	10.1016/j.quascirev.2023.108412
	Westerly aridity in the western Tarim Basin driven by global cooling since the mid-Pleistocene transition
	Liu, Hongye; Zhang, Rui; Gu, Yansheng; Dai, Gaowen; Li, Lin; Guan, Shuo; Fu, Zhongbiao
通讯作者	Gu, YS
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
EISSN	1873-457X
出版年	2023
卷号	322
英文摘要	To explore the relationship between the global cooling, westerlies, and central Asian aridity, we report similar to 1.1 Ma local sedimentary environment changes according to physical-chemical parameters from an 800-m core (KT11) from the Kashgar region in the western Tarim Basin, China. Grain size end-member (EM) modelling is employed to quantify the processes of sediment transport and deposition. Four end members with modal values of 272 mu m, 144 mu m, 45.6 mu m and 12.7 mu m were extracted and explained 97.9% of the variance in the grain size data, corresponding aeolian dynamics, river energies, delta development and pedogenesis/long-term suspension components transported by wind or water, respectively. Four dominant sedimentation types, including lacustrine facies, delta facies, fluvial facies, and aeolian dunes, were identified through lithology and grain size frequency curves. The 1.1 Ma sedimentary successions experienced delta deposits interbedded with fluvial and aeolian deposits and lacustrines (1.1-0.6 Ma), alternating fluvial and aeolian facies with the occurrence of deltas and lacustrines (0.6-0.15 Ma), and aeolian facies interbedded with deltas and fluvial facies (0.15 Ma-present). Stepwise drying sedimentary conditions and enhanced desertification indicated by increasing rubidium/strontium ratios and proportion of aeolian sands, and decreasing total organic carbon since the past 1.1 Ma, implied intensified westerlies, likely resulted from ice volume expansion and ongoing global cooling according to geological record comparison and simulations during the Last Glacial Maximum compared to preindustrial conditions, which may have controlled the expansion of the permanent deserts in inland Asia. These persistent drying trends and intensified westerly circulation in arid regions during glacial periods after the mid-Pleistocene Transition indicated by larger amplitudes of aeolian sand proportion than prior to 0.6 Ma are similar to those in the interior monsoonal Asia, where the larger-amplitude of median grain size indicated enhanced Asian winter monsoon intensity and drier glacials.
英文关键词	Sedimentary succession Westerlies Asian aridity Ice volume expansion Mid-pleistocene Tarim Basin
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001146878400001
WOS关键词	GRAIN-SIZE DISTRIBUTION ; CHINESE LOESS ; PALEOENVIRONMENTAL RECORDS ; MAGNETIC-SUSCEPTIBILITY ; TIBETAN PLATEAU ; QAIDAM BASIN ; LATE MIOCENE ; DRILL CORE ; PLEISTOCENE ; DESERT
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398205
推荐引用方式 GB/T 7714	Liu, Hongye,Zhang, Rui,Gu, Yansheng,et al. Westerly aridity in the western Tarim Basin driven by global cooling since the mid-Pleistocene transition[J],2023,322.
APA	Liu, Hongye.,Zhang, Rui.,Gu, Yansheng.,Dai, Gaowen.,Li, Lin.,...&Fu, Zhongbiao.(2023).Westerly aridity in the western Tarim Basin driven by global cooling since the mid-Pleistocene transition.QUATERNARY SCIENCE REVIEWS,322.
MLA	Liu, Hongye,et al."Westerly aridity in the western Tarim Basin driven by global cooling since the mid-Pleistocene transition".QUATERNARY SCIENCE REVIEWS 322(2023).