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(Article of periodic en Anglais - 1992)

Document title

Late Holocene and recent geomorphodynamics in the south-western Gongola Basin, NE Nigeria

published at : Geomorphology of the tropics with special reference to South Asia and Africa

Authors(s) and Affiliation(s)

BRUNK K. ;

Abstract

In the valley-bottom deposits of the south-western Gongola Basin several morphodynamic phases of the relatively arid Late Holocene can be recognized and to some extend dated. The accumulation of fluvial-colluvial sediments followed an erosional phase in the valley areas lasting until about 2 000 BP. The formation of the uppermost fossil humic horizon can probably be correlated with moister climatic conditions during the 16th and 17th century. The currently occurring gully-like dissection of the valley-bottom deposits and the adjacent slopes in above all put down to the substantial anthropogenic intensification of the surface runoff caused by an almost complete clearing of the protective vegetational cover

Source

Thematical fascicle

published at : Zeitschrift für Geomorphologie. Supplementband / ISSN 0044-2798

Editor : Borntraeger, Berlin ; Borntraeger, Stuttgart - ALLEMAGNE (1960)

Millesime : 1992, no 91 [pp. 149-159]

Bibliographic references : 16 réf.

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 8829 B

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1993.
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