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(Article of periodic en Anglais - 2012)

Document title

Controlled, ice-cored moraines: sediments and geomorphology. An example from Ragnarbreen, Svalbard

Authors(s) and Affiliation(s)

EWERTOWSKI M. (1) ; KASPRZAK L. (1) ; SZUMAN I. (1) ; TOMCZYK A.M. (1) ;
(1) Inst. of Geoecology and Geoinformation, Adam Mickiewicz Univ., Poznań, POLOGNE

Abstract

End moraine of the Ragnarbreen consists of 3 subzones: (1) outer moraine ridge, (2) culmination moraine ridge and (3) inner moraine plateau. Reworking processes were and still are the main factor influencing the morphology and sediment distribution in this end moraine complex. However, the intensity of gravity flows is much lower now than it was in the early stages of end moraine complex development. The stability of the ice-cored moraines is due mainly to the thickness of the covering debris, which protects the ice from melting. The occurrence of fine sediments on the contemporary hills suggests that the end moraine complex has undergone at least one cycle of topographic inversion. The analysis of landforms and deposits occurring in the end moraine complex of the Ragnarbreen revealed patterns in the morphology such as the lineation of hillocks and depressions, parallel to the edge of the moraine complex

Source

Article of periodic

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2012, vol. 56, no1 [pp. 53-74]

Bibliographic references : 2 p.

Collation : 12 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2011/0049

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 25991869 : Permanent link - XML version
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