Mots-clés
Bourrelet de névé Glaciaire Géomorphogenèse Héritage géomorphologique Paléo-environnement Périglaciaire Sédimentologie Terminologie Geomorphogenesis Glacial features Inheritated geomorphological features Palaeo-environment Periglacial features Pronival rampart Sedimentology Terminology Geomorfogénesis Glaciar Herencia geomorfológica Paleoambiente Periglaciar Sedimentología TerminologíaDiagnostic criteria for pronival ramparts : site, morphological and sedimentological characteristics
Southern African geomorphology : looking back, moving forward
Auteur(s) et Affiliation(s)
HEDDING, D.W.
Dept. of Geography, Geoinformatics and Meteorology, Univ., Pretoria, Afrique du Sud
SUMNER, P.D.
Dept. of Geography, Geoinformatics and Meteorology, Univ., Pretoria, Afrique du Sud
SUMNER, P.D.
Dept. of Geography, Geoinformatics and Meteorology, Univ., Pretoria, Afrique du Sud
NEL, W.
Dept. of Geography and Environmental Science, Univ. of Fort Hare, Alice, Afrique du Sud
HOLMES, P.J.
Dept. of Geography, Univ. of the Free State, Bloemfontein, Afrique du Sud
Description :
Pronival ramparts are often confused with moraines, protalus rock glaciers or rock-slope failure debris accumulations. Various characteristics have been suggested for identification of pronival ramparts but these are derived largely from relict features. Research on actively accumulating ramparts has shown that some of the suggested criteria are no longer useful. This paper reviews existing criteria and shows that, for diagnostic purposes, more emphasis should be placed on the attributes of actively accumulating features. A more robust set of criteria, derived from common characteristics of actively accumulating ramparts, are proposed that assists in discriminating relict and active pronival ramparts from other discrete bedrock cliff-foot debris accumulations.
Type de document :
Article de monographie
Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2013, vol. 95, n°. 4, p. 315-322, nombre de pages : 8, Références bibliographiques : 2 p.
Date :
2013
Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)