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DOI	10.1016/j.quascirev.2020.106656
	The first dated evidence for Middle-Late Pleistocene fluvial activity in the central Thar Desert
	Blinkhorn J.; Achyuthan H.; Jaiswal M.; Singh A.K.
发表日期	2020
ISSN	0277-3791
卷号	250
英文摘要	The Thar Desert, located in western South Asia, marks a major global biogeographic boundary and a major adaptive threshold for the eastward expansions of modern humans from Africa across Asia. Examining the framework of palaeoenvironmental change in this region, both in terms of the regional manifestation of global climate change and the physical geography of the landscape, is therefore important to understand how modern humans first engaged with this significant shift in ecology. Here, we present evidence for the oldest chronometrically dated evidence for fluvial activity within this region, located at the Nal Quarry site in the central Thar Desert. We use luminescence dating of alluvial facies to demonstrate phases of fluvial activity at the site at ∼172–174, 140–150, 79–95 and 26 thousand years ago. This result substantially extends existing evidence for fluvial activity within the Thar Desert, as well as overlapping with evidence from the southern and eastern Thar desert indicating increased fluvial activity during the Last Interglacial (Marine Isotope Stage 5), whereas the cessation of fluvial deposition at Nal Quarry is contemporaneous with the onset of activity within the Ghaggar-Hakkra channel in the northern and western Thar Desert. Critically, the phases of fluvial activity identified at Nal overlaps with substantial behavioural change across South Asia, as well as the wider expansion of modern humans across the continent. This research illuminates a dynamic fluvial landscape that existed in the late Middle Pleistocene and early Late Pleistocene at a key threshold for modern human dispersals. © 2020 Elsevier Ltd
英文关键词	Fluvial migration; Human dispersal; Middle-late pleistocene; South asia; Thar desert
语种	英语
scopus关键词	Climate change; Expansion; Quarries; Adaptive thresholds; Behavioural changes; Biogeographic boundaries; Fluvial deposition; Global climate changes; Luminescence dating; Marine isotope stages; Middle Pleistocene; Landforms; biogeography; climate change; dispersal; global climate; landscape; Last Interglacial; luminescence dating; paleoenvironment; physical geography; Pleistocene; Africa; Thar Desert
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151237
作者单位	Pan African Evolution Research Group, Max Planck Institute for the Science of Human History, Jena, Germany; Centre for Quaternary Research, Department of Geography, Royal Holloway, University of London, Egham, Surrey, United Kingdom; Institute for Ocean Management, Anna University, Chennai, 600 025, India; Department of Earth Sciences, Indian Institute of Science Education and Research, Kolkata, India
推荐引用方式 GB/T 7714	Blinkhorn J.,Achyuthan H.,Jaiswal M.,et al. The first dated evidence for Middle-Late Pleistocene fluvial activity in the central Thar Desert[J],2020,250.
APA	Blinkhorn J.,Achyuthan H.,Jaiswal M.,&Singh A.K..(2020).The first dated evidence for Middle-Late Pleistocene fluvial activity in the central Thar Desert.Quaternary Science Reviews,250.
MLA	Blinkhorn J.,et al."The first dated evidence for Middle-Late Pleistocene fluvial activity in the central Thar Desert".Quaternary Science Reviews 250(2020).