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(Article of periodic en Anglais - 2014)

Document title

Investigations into the relationship between changes in internal moisture regimes and rock surface deterioration in cavernous sandstone features

Authors(s) and Affiliation(s)

MOL L. (1) ;
(1) School of Geography and the Environment, Univ., Oxford, ROYAUME-UNI

Abstract

In this study the role of internal moisture movement is tested through monitoring moisture and surface deterioration dynamics in April 2008 and April 2009 within 2 large cavernous features (mega-tafoni) in the Golden Gate Highlands National Park, South Africa (GGHNP). Data are presented from surveys of internal moisture (using electrical resistivity tomography, ERT), surface moisture (using a Protimeter) and deterioration (using surface hardness as recorded with an Equotip as a proxy for surface deterioration) across 5 transects. In addition a high resolution temperature record is presented to assess the influence of micro-climates within the caverns. The presence of well-established biofilms suggests an even more complex interaction between moisture, surface development and biological activity. A model is presented therefore which integrates this paradox by proposing a non-linear relationship between moisture dynamics, facilitation of biofilm formation, and deterioration within cavernous features

Source

Article of periodic

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

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

Millesime : 2014, vol. 39, no7 [pp. 914-927]

Bibliographic references : 1 p.

Collation : 16 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3497

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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