DOI: 10.1016/j.quascirev.2013.11.009
Scopus记录号: 2-s2.0-84889595339
论文题名: Ice Complex formation in arctic East Siberia during the MIS3 Interstadial
作者: Wetterich S. ; Tumskoy V. ; Rudaya N. ; Andreev A.A. ; Opel T. ; Meyer H. ; Schirrmeister L. ; Hüls M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 84 起始页码: 39
结束页码: 55
语种: 英语
英文关键词: Bol'shoy Lyakhovsky Island
; Permafrost
; West Beringia
; Yedoma
Scopus关键词: Geochronology
; Isotopes
; Permafrost
; Bol'shoy Lyakhovsky Island
; Climate variability
; Environmental conditions
; Environmental dynamics
; Freeze-thaw process
; Marine isotope stages
; West Beringia
; Yedoma
; Ice
; arctic environment
; Beringia
; cirque
; climate variation
; cryosphere
; freeze-thaw cycle
; geochronology
; interstadial
; marine isotope stage
; palynology
; permafrost
; reconstruction
; stable isotope
; Bolshoi Lyakhovsky Island
; New Siberian Islands
; Russian Federation
; Sakha
英文摘要: A continuous 15m long sequence of Ice Complex permafrost (Yedoma) exposed in a thermo-cirque at the southern coast of Bol'shoy Lyakhovsky Island (New Siberian Archipelago, Dmitry Laptev Strait) was studied to reconstruct past landscape and environmental dynamics. The sequence accumulated during the Marine Isotope Stage 3 (MIS3) Interstadial between >49 and 29kaBP in an ice-wedge polygon. The frozen deposits were cryolithologically described and sampled on a vertical bluff between two ice wedges. According to sedimentological and geochronological data, the section is subdivided into three units which correlate with environmental conditions of the early, middle, and late MIS3 period. Palynological data support this stratification. The stable isotope signature of texture ice in the polygon structure reflects fractionation due to local freeze-thaw processes, while the signature of an approximately 5m wide and more than 17m high ice wedge fits very well into the regional stable-water isotope record. Regional climate dynamics during the MIS3 Interstadial and local landscape conditions of the polygonal patterned ground controlled the Ice Complex formation. The sequence presented here completes previously published MIS3 permafrost records in Northeast Siberia. Late Quaternary stadial-interstadial climate variability in arctic West Beringia is preserved at millennial resolution in the Ice Complex. A MIS3 climate optimum was revealed between 48 and 38kaBP from the Ice Complex on Bol'shoy Lyakhovsky Island. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60401
Appears in Collections: 过去全球变化的重建
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作者单位: Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Research Unit Potsdam, Department of Periglacial Research, Telegrafenberg A43, 14473 Potsdam, Germany; Moscow State University, Faculty of Geology, Department of Geocryology, Vorob'evy Gory, 119899 Moscow, Russian Federation; Institute of Archaeology and Ethnography, SB RAS, Ak. Lavrentieva 17, 630090 Novosibirsk, Russian Federation; University of Cologne, Institute of Geology and Mineralogy, Zülpicher Str. 49a, 50674 Cologne, Germany; Christian-Albrechts-Universität zu Kiel, Leibniz-Laboratory for Radiometric Dating and Isotope Research, Kiel, Germany
Recommended Citation:
Wetterich S.,Tumskoy V.,Rudaya N.,et al. Ice Complex formation in arctic East Siberia during the MIS3 Interstadial[J]. Quaternary Science Reviews,2014-01-01,84