DOI: 10.1016/j.quascirev.2015.08.026
Scopus记录号: 2-s2.0-84942325436
论文题名: Timing and nature of the penultimate deglaciation in a high alpine stalagmite from Switzerland
作者: Häuselmann A.D. ; Fleitmann D. ; Cheng H. ; Tabersky D. ; Günther D. ; Edwards R.L.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 126 起始页码: 264
结束页码: 275
语种: 英语
英文关键词: Alps
; Climate
; Oxygen isotope
; Paleoclimate
; Penultimate deglaciation
; Speleothem
; Trace elements
; U-series dating
Scopus关键词: Carbon
; Caves
; Isotopes
; Snow
; Trace elements
; Uranium
; Alps
; Climate
; Deglaciations
; Oxygen isotopes
; Paleoclimates
; Speleothem
; U-series dating
; Climate change
; age determination
; air temperature
; carbon isotope
; cave
; deglaciation
; Heinrich event
; isotopic composition
; oxygen isotope
; paleoclimate
; precipitation (climatology)
; precision
; proxy climate record
; speleothem
; stalagmite
; trace element
; uranium series dating
; water temperature
; Alps
; Atlantic Ocean
; Atlantic Ocean (North)
; China
; Hubei
; Sanbao Cave
; Switzerland
英文摘要: The timing and nature of the penultimate deglaciation, also known as Termination II (T-II), is subject of controversial discussions due to the scarcity of precisely-dated palaeoclimate records. Here we present a new precisely-dated and highly-resolved multi-proxy stalagmite record covering T-II from the high alpine Schafsloch Cave in Switzerland, an area where climate is governed by the North Atlantic. The inception of stalagmite growth at 137.4 ± 1.4 kyr before present (BP) indicates the presence of drip water and cave air temperatures of above 0 °C, and is related to a climate-induced change in the thermal state (from cold-to warm-based) of the glacier above the cave. The cessation of stalagmite growth between 133.1 ± 0.7 and 131.9 ± 0.6 kyr BP is most likely related to distinct drop in temperature associated with Heinrich stadial 11. The resumption of stalagmite growth at 131.9 ± 0.6 kyr BP is accompanied by an abrupt increase in temperature and precipitation as indicated by distinct shifts in the oxygen and carbon isotopic composition as well as in trace element concentrations. The mid-point of T-II is around 131.8 ± 0.6 kyr BP in the Schafsloch Cave record is significantly earlier compared to the age of 129.1 ± 0.1 kyr BP in the Sanbao Cave record from China. The different ages between both records can be best explained by the competing effects of insolation and glacial boundary forcing on seasonality and snow cover extent in Eurasia. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59824
Appears in Collections: 过去全球变化的重建
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作者单位: Institute of Geological Sciences and Oeschger Centre for Climate Change Research, University of Bern, Switzerland; Department of Archaeology and Center for Past Climate Change, School of Archaeology, Geography and Environmental Science, University of Reading, United Kingdom; Department of Earth Sciences, University of Minnesota, United States; Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China; Department of Chemistry and Applied Biosciences, Laboratory of Inorganic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, Switzerland
Recommended Citation:
Häuselmann A.D.,Fleitmann D.,Cheng H.,et al. Timing and nature of the penultimate deglaciation in a high alpine stalagmite from Switzerland[J]. Quaternary Science Reviews,2015-01-01,126