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(Article of periodic en Anglais - 2012)

Document title

Glacier retreat and landform production on an overdeepened glacier foreland : the debris-charged glacial landsystem at Kvíárjökull, Iceland

Authors(s) and Affiliation(s)

BENNETT G.L. (1) ; EVANS D.J.A. (1) ;
(1) Dept. of Geography, Univ., Durham, ROYAUME-UNI

Abstract

Glacier recession and landform development in a debris-charged glacial landsystem characterized by an overdeepening is quantified using digital photogrammetry, digital elevation model (DEM) construction and mapping of the Icelandic glacier Kvíárjökull for the period 1945-2003. Melting of ice-cores is recorded by different surface lowering rates). The distribution/preservation of pushed and stacked ice-cored moraine complexes are determined by the location of the long-term glacial drainage network in combination with retreat from the overdeepening, into which glacifluvial sediment is being directed and where debris-rich ice masses are being reworked and replaced by esker networks produced in englacial meltwater pathways that bypassed the overdeepening and connected to outwash fans prograding over the snout. Recent accelerated retreat of Kvíárjökull, potentially due to increased mass balance sensitivity, has made the snout highly unstable, especially now that the overdeepening is being uncovered and the snout flooded by an expanding pro-glacial, and partially supraglacial, lake

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2012, vol. 37, no15 [pp. 1584-1602]

Bibliographic references : 1 p.

Collation : 22 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3259

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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