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Titolo:
MONITORING OF RAPID SALT WEATHERING IN THE CENTRAL NAMIB DESERT USINGLIMESTONE BLOCKS
Autore:
GOUDIE AS; VILES HA; PARKER AG;
Indirizzi:
UNIV OXFORD,SCH GEOG,MANSFIELD RD OXFORD OX1 3TB ENGLAND
Titolo Testata:
Journal of arid environments
fascicolo: 4, volume: 37, anno: 1997,
pagine: 581 - 598
SICI:
0140-1963(1997)37:4<581:MORSWI>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOUTHERN TUNISIA; ROCK;
Keywords:
SALT WEATHERING; FOG; DESERTS; PLANATION; NAMIB;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
A.S. Goudie et al., "MONITORING OF RAPID SALT WEATHERING IN THE CENTRAL NAMIB DESERT USINGLIMESTONE BLOCKS", Journal of arid environments, 37(4), 1997, pp. 581-598

Abstract

Pre-weighed blocks of a Jurassic Limestone were exposed on the groundsurface in the coastal Namib Desert for a period of 2 years. The environment is both salty and foggy. Some of the blocks suffered extensivedisintegration, and laboratory analyses (including geochemistry, XRD and SEM) indicate that the weathered samples have a high halite (sodium chloride) content. Cycles of wetting and drying associated with the frequent fog events of the area cause cycles of halite crystallization. Rocks exposed at the surface absorb salts from the surrounding desert surface and then disintegrate, contributing to planation of the landscape. (C) 1997 Academic Press Limited.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 15:48:39