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(Article of periodic en Anglais - 1997)

Document title

Avulsion and anastomosis in the panhandle region of the Okavango fan, Botswana

Authors(s) and Affiliation(s)

SMITH N.D. (1) ; MCCARTHY T.S. ; ELLERY W.N. ; MERRY C.L. ; RÜTHER H. ;
(1) Dep. Geological Sciences, Univ. Illinois, Chicago, ETATS-UNIS

Abstract

Global Positioning System (GPS) water-surface elevation data from the panhandle region of the Okavango Fan show that a prominent anastomosed reach occurs within a relative valley-gradient depression inferred to represent a small graben structure. The Okavango River undergoes an abrupt change in pattern as it approaches the upstream fault zone of the graben, developing small meander loops and higher sinuosity in response to increased valley slope induced by faulting. Neotectonic movement, although involving only slight deplacement, is seen to be the underlying cause of avulsion, anastomosis, and certain channel pattern changes in the Okavango panhandle

Source

Article of periodic

published at : Geomorphology / ISSN 0169-555X

Editor : Elsevier, Amsterdam - PAYS-BAS (1987)

Millesime : 1997, vol. 20, no1-2 [pp. 49-65]

Bibliographic references : 46 ref.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1997.
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