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DOI	10.1016/j.quascirev.2020.106338
	Late Pleistocene lake level history of Lake Mungo; Australia
	Barrows T.T.; Fitzsimmons K.E.; Mills S.C.; Tumney J.; Pappin D.; Stern N.
发表日期	2020
ISSN	0277-3791
卷号	238
英文摘要	Lake Mungo is a currently dry lake basin in the semi-arid zone of southeastern Australia. The transverse dune system on the downwind side contains a record of human occupation of international importance. It also contains one of the most continuous records of climate change over the last glacial cycle in the Australia desert. In this paper we provide a framework for the interpretation of lake level history from before the arrival of people (>41 ka) until after the establishment of the pastoral industry in the area. We present 83 optically stimulated luminescence ages from the Lake Mungo lunette. The lake level history is reconstructed from 34 stratigraphic sections along three transects through the lunette. The dating reveals considerable lake level fluctuations through time which occur over a depth range of ∼10 m in the basin. At its height, probably at multiple times before 20 ka, the lake held more than 1 km3 of water and at its final level at ∼19 ka, contained only 0.03 km3. The inception of Lake Mungo appears to have taken place during the mid-Pleistocene between ∼256 and 369 ka. During the last glacial cycle, Lake Mungo was almost continuously wetter than present from shortly after 60 ka until ∼19 ka. The Upper Mungo, Arumpo and Zanci units represent a succession of lake filling and drying events, briefly interspersed by soils. The final Zanci unit does not represent a single high lake phase, but an initial lake filling followed by a series of short-lived lake level events within a brief period of a few thousand years. At the conclusion of this event, the lake remained dry until the present day. Four OSL ages from a linear dune upwind of Lake Mungo indicates regional aeolian activity from ∼30 ka until present. Widespread erosion that produces the characteristic topography of the lunette began after the arrival of British pastoralists and traditional aboriginal ways of life overlapped briefly with this erosion. The presence of water in Lake Mungo closely corresponds to periods when regional surface temperature was colder than present during the late Pleistocene. Our new data supports a model that decreased evaporation and increased runoff were primarily responsible for increased availability of surface water in the hydrological cycle. © 2020 Elsevier Ltd
英文关键词	Arid zone; Australia; Lake levels; Lake Mungo; Optically stimulated luminescence; Pleistocene
语种	英语
scopus关键词	Arid regions; Climate change; Erosion; Glacial geology; Luminescence; Stratigraphy; Topography; Aeolian activities; Hydrological cycles; Lake level fluctuations; Last glacial cycles; Optically stimulated luminescence; Presence of water; Regional surface temperature; South-eastern Australia; Lakes; climate variation; dune; eolian process; evaporation; hydrological cycle; lake level; Last Glacial; Pleistocene; runoff; topography; Australia; Lake Mungo; New South Wales
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/151462
作者单位	School of Earth, Atmospheric and Life Sciences, University of Wollongong, Australia; School of the Environment, Geography and Geosciences, University of Portsmouth, United Kingdom; Research Group for Terrestrial Palaeoclimates, Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, Mainz, 55128, Germany; Department of Archaeology and History, La Trobe University, Bundoora, VIC 3086, Australia; Heritage Division, New South Wales Office of Environment and Heritage, Buronga, Australia
推荐引用方式 GB/T 7714	Barrows T.T.,Fitzsimmons K.E.,Mills S.C.,et al. Late Pleistocene lake level history of Lake Mungo; Australia[J],2020,238.
APA	Barrows T.T.,Fitzsimmons K.E.,Mills S.C.,Tumney J.,Pappin D.,&Stern N..(2020).Late Pleistocene lake level history of Lake Mungo; Australia.Quaternary Science Reviews,238.
MLA	Barrows T.T.,et al."Late Pleistocene lake level history of Lake Mungo; Australia".Quaternary Science Reviews 238(2020).