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(Article of periodic en Anglais - 2012)

Document title

The role of rock surface hardness and internal moisture in tafoni development in sandstone

Authors(s) and Affiliation(s)

MOL L. (1) ; VILES H.A. (1 2) ;
(1) School of Geography and the Environment, Univ., Oxford, ROYAUME-UNI
(2) School of Geography, Archaeology and Environmental Studies, Univ. of Witwatersrand, Johannesburg, AFRIQUE DU SUD

Abstract

In this study, Electric Resistivity Tomography (ERT) has been used to map moisture distribution within inner walls of tafoni developed in sandstone, and an Equotip device used to measure rock surface hardness as a proxy measure of the degree of weathering and case hardening. Seven large tafoni in the Golden Gate Highlands National Park (South Africa), varying in size and degree of development have been monitored. A dynamic relationship between surface hardness, degree of weathering and internal moisture regimes has been found. The AA. propose a new conceptual model which illustrates the complex interaction between case hardening and internal moisture and suggests a new direction for cavernous weathering research

Source

Article of periodic

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

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

Millesime : 2012, vol. 37, no3 [pp. 301-314]

Bibliographic references : 63 ref.

Collation : 13 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2252

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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