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Surging glacier landsystem of Tungnaárjökull, Iceland.

Evans, D. J. A. and Twigg, D. R. and Rea, B. R. and Orton, C. (2009) 'Surging glacier landsystem of Tungnaárjökull, Iceland.', Journal of maps., 2009 . pp. 134-151.

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.

Item Type:Article
Full text:PDF - Published Version (2011Kb)
Full text:PDF (Map) - Published Version (7288Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.4113/jom.2009.1064
Publisher 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/
Record Created:24 May 2010 16:50
Last Modified:02 Jun 2010 14:42

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