DOI: 10.1016/j.quascirev.2013.11.023
Scopus记录号: 2-s2.0-84900391955
论文题名: Landscape imprints of changing glacial regimes during ice-sheet build-up and decay: A conceptual model from Svalbard
作者: Landvik J.Y. ; Alexanderson H. ; Henriksen M. ; Ingólfsson T.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 92 起始页码: 258
结束页码: 268
语种: 英语
英文关键词: Glacial regime
; Ice flow
; Landscape imprints
; Svalbard
Scopus关键词: Glacial geology
; Stratigraphy
; Conceptual model
; Glacial cycles
; Glacial regime
; Ice flow
; Landscape imprints
; Marine record
; Stratigraphic records
; Svalbard
; Ice
; conceptual framework
; fjord
; geomorphology
; glacial-interglacial cycle
; glaciation
; ice flow
; ice sheet
; ice stream
; Arctic
; Svalbard
; Svalbard and Jan Mayen
英文摘要: The behaviour of ice sheets and their geologic imprints in fjord regions are often multifaceted. Fjords, which were temporarily occupied by fast flowing ice-streams during major glaciations, and inter-fjord areas, which were covered by less active ice, show different signatures of past glaciations. The land and marine records of glaciations over the western Svalbard fjord region have been extensively studied during the last few decades. We have re-examined ice-flow records from stratigraphic and geomorphic settings, and propose a succession of ice-flow events that occurred repeatedly over glacial cycles: the maximum, the transitional, and the local flow style. The differently topographically constrained segments of the ice-sheet switched behaviour as glacial dynamics developed through each glacial cycle. These segments, as well as the different flow styles, are reflected differently in the offshore stratigraphic record. We propose that the glacial geomorphological signatures in the inter ice-stream areas mostly developed under warm-based conditions during a late phase of the glaciations, and that the overall glacial imprints in the landscape are strongly biased towards the youngest events. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60298
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Environmental Sciences, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway; Department of Geology, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden; Faculty of Earth Sciences, University of Iceland, Sturlugata 7, IS-101 Reykjavik, Iceland; University Centre in Svalbard, UNIS, P.O. Box 156, NO-9171 Longyearbyen, Norway
Recommended Citation:
Landvik J.Y.,Alexanderson H.,Henriksen M.,et al. Landscape imprints of changing glacial regimes during ice-sheet build-up and decay: A conceptual model from Svalbard[J]. Quaternary Science Reviews,2014-01-01,92