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(Article of periodic en Anglais - 2004)

Document title

Petrology, geochemistry and environmental significance of silcrete-calcrete intergrade duricrusts at Kang Pan and Tswaane, central Kalahari, Botswana

published at : Terrestrial geochemical sediments and geomorphology. Special issue

Authors(s) and Affiliation(s)

NASH D.J. ; MCLAREN S.J. ; WEBB J.A. ;

Abstract

This paper presents the first in-depth investigation of cement relationships within Kalahari silcrete-calcrete intergrade duricrusts at a profile scale, through the detailed analysis of the petrology and geochemistry of duricrusts and bedrock exposed within the quarries at Kang and Tswaane. The combination of micromorphological and geochemical approaches clearly demonstrates the potential of detailed sampling and analysis for determining the environment and mechanisms of duricrust formation. It also serves to reinforce the significance of topographic depressions (pans and valleys) upon the formation of calcrete, silcrete and calcrete-silcrete intergrade duricrusts within the Kalahari

Source

Thematical fascicle

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2004, vol. 29, no 12 [pp. 1559-1586]

Bibliographic references : 55 ref.

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2005.
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