IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Snow-avalanche impact landforms, deposits and effects at Urdvatnet, southern Norway: implications for avalanche style and process
Owen, Geraint; Matthews, John A.; Shakesby, Richard A.; He, Xiubin
Corresponding AuthorOwen, Geraint
2006
Source PublicationGEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY
ISSN0435-3676
Volume88AIssue:4Pages:295-307
SubtypeArticle
AbstractAn unusual assemblage of landforms and deposits is described from upper Norangsdalen, Sunnmore region, southern Norway, and interpreted as the product of snow-avalanche events that vary in magnitude, frequency and debris content. An avalanche impact plunge pool, proximal scar and distal mound are associated with a coarse gravel deposit covering part of the valley floor. Landforms in this debris spread include gravel ridges, boulder lines, beaded ridges, fine sediment banked against and covering large boulders, and gravel clumps. Many of these landforms are aligned, indicating across-valley transport radiating from the plunge pool. Features were mapped in the field and samples analysed for grain size and heavy-mineral content. The debris spread is attributed to deposition by high-energy, debris-rich snow-avalanche events that collect debris from large areas of the valley side, lower slopes and plunge pool. Aligned landforms develop through sediment transport in a basal shear zone, and randomly distributed gravel clumps represent melt pits following debris transport in the avalanche body. Air displacement ahead of larger avalanches is thought to have felled and tilted trees on the lower slopes of the distal valley side. Approximate ages of damaged trees allowed estimation of the frequency of snow-avalanche events: (1) small, frequent events (several per annum) carry debris to the lower valley slopes and the plunge pool; (2) moderate events with an annual to decadal frequency maintain the pool-scar-mound complex; and (3) large, debris-rich events with a decadal to centennial frequency add material to the debris spread.
KeywordAvalanche Impact Plunge Pool Debris Spread Magnitude-frequency Sunnmore Norway
WOS HeadingsScience & Technology ; Physical Sciences
WOS Subject ExtendedPhysical Geography ; Geology
Indexed BySCI
WOS KeywordMOUNTAINS
Language英语
Quartile4区
TOP
WOS SubjectGeography, Physical ; Geology
WOS IDWOS:000242661100004
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10511
Collection成都山地所知识仓储(2009年以前)
山地表生过程与生态调控重点实验室
Affiliation1.Univ Wales Swansea, Sch Environm & Soc, Dept Geog, Swansea SA2 8PP, W Glam, Wales
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Owen, Geraint,Matthews, John A.,Shakesby, Richard A.,et al. Snow-avalanche impact landforms, deposits and effects at Urdvatnet, southern Norway: implications for avalanche style and process[J]. GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY,2006,88A(4):295-307.
APA Owen, Geraint,Matthews, John A.,Shakesby, Richard A.,&He, Xiubin.(2006).Snow-avalanche impact landforms, deposits and effects at Urdvatnet, southern Norway: implications for avalanche style and process.GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY,88A(4),295-307.
MLA Owen, Geraint,et al."Snow-avalanche impact landforms, deposits and effects at Urdvatnet, southern Norway: implications for avalanche style and process".GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY 88A.4(2006):295-307.
Files in This Item:
File Name/Size DocType Version Access License
Snow-avalanche impac(9927KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Owen, Geraint]'s Articles
[Matthews, John A.]'s Articles
[Shakesby, Richard A.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Owen, Geraint]'s Articles
[Matthews, John A.]'s Articles
[Shakesby, Richard A.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Owen, Geraint]'s Articles
[Matthews, John A.]'s Articles
[Shakesby, Richard A.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Snow-avalanche impact landforms, deposits and effects at Urdvatnet, southern Norway: implications for avalanche style and process.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.