DOI: 10.1016/j.quascirev.2019.01.006
Scopus记录号: 2-s2.0-85060189976
论文题名: A history of the modern Aral Sea (Central Asia) since the Late Pleistocene
作者: Burr G.S. ; Kuzmin Y.V. ; Krivonogov S.K. ; Gusskov S.A. ; Cruz R.J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2019
卷: 206 起始页码: 141
结束页码: 149
语种: 英语
英文关键词: Aral Sea
; Central Asia
; Foraminifera
; Holocene
; Late Pleistocene
; Ostracods
; Paleontology
; Radiocarbon dating
; Sedimentology
Scopus关键词: Animals
; Glacial geology
; Seawater
; Sedimentology
; Aral Sea
; Central Asia
; Foraminifera
; Holocenes
; Late Pleistocene
; Ostracods
; Paleontology
; Radiocarbon dating
; Lakes
; foraminifera
; lake level
; Last Glacial Maximum
; meltwater
; ostracod
; paleoceanography
; radiocarbon dating
; sedimentary sequence
; sedimentation rate
; sedimentology
; twentieth century
; Aral Sea
; Sirdaryo
; Tien Shan
; Uzbekistan
; Foraminifera
; Ostracoda
英文摘要: The catastrophic demise of the Aral Sea in the late twentieth century has stimulated significant international efforts to understand the geological, hydrological, and climatological controls on lake level at timescales ranging from years to millennia. Here we extend this time range to the Late Pleistocene with sedimentological, chronological and paleontological results from a core that dates from ca. 17.6 kyr cal BP. To our knowledge, this Aral Sea core (B-05-2009) is the oldest directly-dated sediment record with multiple late Pleistocene 14 C dates currently available from the region. The core shows that the modern Aral Sea formed at least as early as the end of the Last Glacial Maximum. The main source of water was most likely glacial meltwater from the Tian Shan, Pamir, and other distant mountain systems in the modern day Aral Sea watershed, carried by the Syr Darya and Amu Darya rivers. The Late Pleistocene section of the core contains ostracods and foraminifera throughout, providing evidence that the lake supported life since its inception. Our chronology suggests a relatively high average sedimentation rate at the onset of lake development, and a significant sedimentation hiatus around the time of the Pleistocene/Holocene boundary. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117381
Appears in Collections: 气候变化与战略
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Recommended Citation:
Burr G.S.,Kuzmin Y.V.,Krivonogov S.K.,et al. A history of the modern Aral Sea (Central Asia) since the Late Pleistocene[J]. Quaternary Science Reviews,2019-01-01,206