Professor David Evans d.j.a.evans@durham.ac.uk
Professor
Surging glacier landsystem of Tungnaárjökull, Iceland
Evans, D.J.A.; Twigg, D.R.; Rea, B.R.; Orton, C.
Authors
D.R. Twigg
B.R. Rea
C. Orton
Abstract
A 1:30,000 scale map of the snout and proglacial landscape of the surging Icelandic glacier Tungnaarjokull, based upon aerial photography from 1995, immediately after a surge, allows an assessment of the spatial variability in landform-sediment imprints of catastrophic glacier advance across upland bedrock ridges. The ice-margin parallel alignment of the bedrock ridges locally strongly directs proglacial meltwater drainage and initiates strong compression in the ice during surging, resulting in the development of prominent ice-cored hummocky moraine composed of glacifluvial sediment. Diagnostic surge landforms elsewhere on the foreland include thrust block and push moraines, overridden ice-cored thrust block moraines, crevasse squeeze ridges, long flutings, hummocky moraine and ice-cored, pitted outwash.
Citation
Evans, D., Twigg, D., Rea, B., & Orton, C. (2009). Surging glacier landsystem of Tungnaárjökull, Iceland. Journal of Maps, 2009, 134-151. https://doi.org/10.4113/jom.2009.1064
Journal Article Type | Article |
---|---|
Publication Date | Jan 1, 2009 |
Deposit Date | May 21, 2010 |
Publicly Available Date | Jun 2, 2010 |
Journal | Journal of Maps |
Publisher | Taylor and Francis Group |
Peer Reviewed | Peer Reviewed |
Volume | 2009 |
Pages | 134-151 |
DOI | https://doi.org/10.4113/jom.2009.1064 |
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Published Journal Article
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Copyright Statement
This article and accompanying map are licensed under the Creative Commons License, Attribution-Noncommercial-No Derivative Works 2.0 Generic: http://creativecommons.org/licenses/by-nc-nd/2.0/
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