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Contrasting weathering and climate regimes in forested and cleared sandstone temples of the Angkor region

Auteur(s) et Affiliation(s)

ANDRÉ, M.-F.
Lab. of Physical and Environmental Geography - GEOLAB, CNRS/Blaise Pascal Univ., Clermont-Ferrand, France
Inst. Universitaire de France, Paris, France
VOLDOIRE, O.
Lab. of Physical and Environmental Geography - GEOLAB, CNRS/Blaise Pascal Univ., Clermont-Ferrand, France
ROUSSEL, E.
Maison des Sciences de l'Homme, CNRS/Blaise Pascal Univ., Clermont-Ferrand, France
VAUTIER, F.
Lab. of Physical and Environmental Geography - GEOLAB, CNRS/Blaise Pascal Univ., Clermont-Ferrand, France
PHALIP, B.
Centre of History Spaces and Cultures, Blaise Pascal Univ., Clermont-Ferrand, France
PEOU, H.
APSARA National Authority, Siem Reap, Cambodge


Description :
Comparative assessment of stone weathering intensities and bioclimatic conditions was conducted at 4 temples located in cleared and forested sites of the Angkor Park, based on similar protocols. Four thousand sculpted lotus petals carved in the same grey sandstone were categorized by using 2 customized scales of weathering intensity, and climate monitoring was conducted from December 2008 to November 2009. Whereas 70% of the sandstone lotus petals are almost completely destroyed by mechanical weathering in cleared areas, 74% of petals located in forested environments appear to be totally free of mechanical weathering and are only affected by superficial biochemical weathering. As wetting–drying cycles are the driving force of sandstone decay at Angkor, causal links are suggested between weathering and climate regimes : architectural designs and post-building events influencing water residence time at the stone surface.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2012, vol. 37, n°. 5, p. 519-532, nombre de pages : 14, Références bibliographiques : 1 p.

Date :
2012

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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