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Title: A first insight on the biodegradation of limestone: the case of the World Heritage Convent of Christ
Authors: Rosado, T
Silva, M
Galvão, A
Mirão, J
Candeias, Antonio
Caldeira, A Teresa
Editors: Vandenabeele, P
Bersani, D
Candeias, A
Keywords: biodegradation
Issue Date: 2017
Publisher: Springer
Citation: T. Rosado, M. Silva, A. Galvão, J. Mirão, A. Candeias & A.T. Caldeira (2017) A first insight on the biodegradation of limestone: the case of the World Heritage Convent of Christ. In inArt 2016, 2nd International Conference on Innovation in Art Research and Technology. pp 95-102. P. Vandenabeele, D. Bersani, A. Candeias (Eds.) Springer. ISBN-978-3-662-55416-6
Abstract: The present study is a multidisciplinary approach applied to architectural stone materials of the Convent of Christ in Tomar (Portugal) in order to understand and mitigate the active decay processes. The structure and appearance of the stonework from the Convent of Christ are strongly affected by stains, biofilms and structural degradation. To investigate these phenomena, a multianalytical approach comprising X-ray microdiffraction, scanning electron microscopy, microRaman and microinfrared spectroscopy was applied to the examination of altered outdoor stone areas being detected calcium oxalates, carotenoids and microbial proliferation. The presence of these alteration products seems to be correlated with the microbial activity of bacteria, microalgae, cyanobacteria and filamentous fungi. This work showed that the application of complementary methodologies is an efficient strategy to characterise the stone decay, and constitute a starting point for successful conservation intervention plans that are urgent to ensure the preservation and safeguard of this emblematic monument.
ISBN: 978-3-662-55416-6
Type: article
Appears in Collections:HERCULES - Artigos em Livros de Actas/Proceedings

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