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(Article of periodic en Anglais - 2010)

Document title

An African surface weathering profile in the Kalahari of northwest Ngamilan, Botswana : processes and products

Authors(s) and Affiliation(s)

MCFARLANE M.J. (1) ; ECKARDT F.D. (2) ; COETZEE S.H. (3) ; RINGROSE S. (4) ;
(1) Bosele Investments (Pty.) Ltd, Maun, BOTSWANA
(2) Environmental and Geographical Sciences, Univ., Cape Town, AFRIQUE DU SUD
(3) Electron Microscope Unit, Dep. of Physics, Univ. of Botswana, Gaborone, BOTSWANA
(4) Harry Oppenheimer Okavango Research Centre, Univ. of Botswana, Maun, BOTSWANA

Abstract

In this paper, a surface weathering profile in the Kalahari is described. The textural, chemical and mineral characteristics of profile units are discussed and a model of profile development is presented. Fluvio-lacustrine Kalahari Sediments were not found, consistent with earlier deductions, based on remote sensing, that saprolite directly underlies the linear dune sand in North West Ngamiland. It is suggested that a shift in paradigm would resolve many outstanding problems regarding the origin of the Kalahari Sediments, i.e. a major part are autochtonous rather than allochtonous

Source

Article of periodic

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

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2010, vol. 54, no3 [pp. 273-303]

Bibliographic references : 48 ref.

Collation : 14 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2010/0054-0027

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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