DOI: 10.1016/j.quascirev.2013.10.023
Scopus记录号: 2-s2.0-84900404561
论文题名: Glacial history and paleoceanography of the southern Yermak Plateau since 132kaBP
作者: Chauhan T. ; Rasmussen T.L. ; Noormets R. ; Jakobsson M. ; Hogan K.A.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 92 起始页码: 155
结束页码: 169
语种: 英语
英文关键词: Ice-rafted debris (IRD)
; Marginal Ice Zone (MIZ)
; Planktic and benthic foraminifera
; Stable isotopes
; Svalbard-Barents Sea Ice Sheet (SBIS)
; Yermak Plateau (YP)
Scopus关键词: Debris
; Glacial geology
; Glaciers
; Isotopes
; Benthic foraminifera
; Ice sheet
; Ice-rafted debris (IRD)
; Marginal Ice Zone
; Stable isotopes
; Yermak plateaux
; Sea ice
; benthic foraminifera
; biological production
; carbon isotope
; core analysis
; glacial history
; glacial-interglacial cycle
; Holocene
; ice margin
; ice retreat
; ice sheet
; ice-rafted debris
; marginal ice zone
; marine isotope stage
; microfossil
; oxygen isotope
; paleoceanography
; planktonic foraminifera
; reconstruction
; sea ice
; sediment core
; stable isotope
; Arctic
; Arctic Ocean
; Svalbard
; Svalbard and Jan Mayen
; Yermak Plateau
; Foraminifera
英文摘要: The southern Yermak Plateau (YP) is situated at the entrance to the Arctic Ocean in the narrow Marginal Ice Zone (MIZ) between the Polar and Arctic Fronts, north-west of Svalbard. A gravity core JM10-02GC has been analysed in order to reconstruct paleoceanographic conditions and the movement of the sea ice margin as well as the glacier ice conditions of the Svalbard-Barents Sea Ice Sheet (SBIS) during the Last Interglacial-Glacial cycle. The distribution of planktic and benthic foraminifera, planktic and benthic oxygen and carbon isotopes and variations in ice-rafted debris (IRD) has been investigated. The sediment core covers the time interval from the Marine Isotope Stage (MIS) 6/5e transition (Termination II, c. 132kaBP) to the early Holocene. During Termination II (TII), the SBIS retreated and the sea ice margin was in distal position whereas during MIS 5 to MIS 4 the sea ice margin was close to the core site. Several core intervals interpreted as representing MIS 5e, MIS 5c, MIS 5a, MIS 3 and MIS 1 were barren of calcareous microfossils whereas the intervals representing MIS 4 and MIS 2 were characterised by high productivity (HP) of planktic and benthic foraminifera. These "glacial" HP zones were associated with the open water conditions resulting from the advection of Atlantic Water (AW) and retreat of the sea ice margin. The barren zones during MIS 5, MIS 3 and MIS 1 resulted from the proximity of the sea ice margin whereas during MIS 2 the likely cause was an advance of the SBIS. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60300
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Arctic Geology, The University Centre in Svalbard (UNIS), P.O. Box 156, N-9171 Longyearbyen, Svalbard, Norway; Department of Geology, University of Tromsø, NO-9037 Tromsø, Norway; Department of Geological Sciences, Stockholm University, 10691 Stockholm, Sweden; Scott Polar Research Institute, University of Cambridge, Lensfield Road, Cambridge CB2 1ER, United Kingdom
Recommended Citation:
Chauhan T.,Rasmussen T.L.,Noormets R.,et al. Glacial history and paleoceanography of the southern Yermak Plateau since 132kaBP[J]. Quaternary Science Reviews,2014-01-01,92