Resumo

OREA MAGANA, Haydeé  e  PALACIOS URIBE, Jimena. Analysis of the deterioration of the carved elements of Building 33 in Yaxchilan, Chiapas: a representative study of the weathering of the limestone rocks in the Usumacinta region. Intervención (Méx. DF) [online]. 2013, vol.4, n.7, pp.21-30. ISSN 2007-249X.

Since the conservation department of INAH started the systematic monitoring of the carved stairs and lintels of Structure 33 at the archaeological site of Yaxchilán, Chiapas, México, in 1989, these elements have developed weathering alterations in the limestone rock. However, by 2003 conservators noticed specific and accelerated effects of decay, such as flaking, saline veils and halos, coloured stains and dusty material, which had not been hitherto reported. This research exposes a methodological analysis of the probable causes and mechanisms of alteration of these phenomena; it also poses various lines of investigation in order to promote the preservation of these significant Classic Mayan sculptures.

Palavras-chave : Yaxchilán; Chiapas; limestone deterioration in tropical conditions; weathering; methodological analysis.

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