DOI: 10.1016/j.quascirev.2017.03.008
Scopus记录号: 2-s2.0-85015798169
论文题名: Reconstructing the flow pattern evolution in inner region of the Fennoscandian Ice Sheet by glacial landforms from Gausdal Vestfjell area, south-central Norway
作者: Putniņš A. ; Henriksen M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 163 起始页码: 56
结束页码: 71
语种: 英语
英文关键词: Deglaciation
; Fennoscandian Ice Sheet
; Flow pattern reconstruction
; LiDAR
; Ribbed moraine
; Scandinavia
; Streamlined subglacial landforms
Scopus关键词: Flow patterns
; Geomorphology
; Glacial geology
; Glaciers
; Landforms
; Optical radar
; Deglaciations
; Ice sheet
; Pattern reconstruction
; Ribbed moraine
; Scandinavia
; Subglacial landforms
; Ice
; confined aquifer
; deglaciation
; flow pattern
; ice flow
; ice sheet
; lidar
; moraine
; reconstruction
; spatial distribution
; Weichselian
; Norway
英文摘要: More than 17 000 landforms from detailed LiDAR data sets have been mapped in the Gausdal Vestfjell area, south-central Norway. The spatial distribution and relationships between the identified subglacial bedforms, mainly streamlined landforms and ribbed moraine ridges, have provided new insight on the glacial dynamics and the sequence of glacial events during the last glaciation. This established evolution of the Late Weichselian ice flow pattern at this inner region of the Fennoscandian Ice Sheet is stepwise where a topography independent ice flow (Phase I) are followed by a regional (Phase II) before a strongly channelized, topography driven ice flow (Phase III). The latter phase is divided into several substages where the flow sets are becoming increasingly confined into the valleys, likely separated by colder, less active ice before down-melting of ice took place. A migrating ice divide and lowering of the ice surface seems to be the main reasons for these changes in ice flow pattern. Formation of ribbed moraine can occur both when the ice flow slows down and speeds up, forming respectively broad fields and elongated belts of ribbed moraines. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59259
Appears in Collections: 过去全球变化的重建
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作者单位: Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, Ås, Norway
Recommended Citation:
Putniņš A.,Henriksen M.. Reconstructing the flow pattern evolution in inner region of the Fennoscandian Ice Sheet by glacial landforms from Gausdal Vestfjell area, south-central Norway[J]. Quaternary Science Reviews,2017-01-01,163