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(Article of periodic en Anglais - 2002)

Document title

Observations on a blockstream in the vicinity of Sani Pass, Lesotho highlands, southern Africa

Abstract

This blockstream is described and interpreted as a typical lag deposit derived from valley-wide colluvial mantles, which contains superimposed and incorporated Late-Pleistocene blocky material. Blocks are largely derived from local scarps but may contain a component of corestones from mobilized regolith. The widespread mantle argues against lanscape scale glaciation in the Lesotho highlands in the Late Pleistocene. Rather, the environment appears to have been conducive to deep seasonal frost during the period of block production. No unequivocal evidence for permafrost is found

Source

Article of periodic

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2002, vol. 13, no4 [pp. 251-257]

Bibliographic references : 32 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2003.
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