文章基本信息

标题：Study of alteration and degradation products of a Roman marble sarcophagus located in the medieval cloister of the old st Cosimato’s Convent, now the new "Regina Margherita Hospital” (Rome)
本地全文：下载
作者：Gino Mirocle Crisci ; Mauro Francesco La Russa ; Marco Malagodi 等
期刊名称：Conservation Science in Cultural Heritage
印刷版ISSN：1973-9494
出版年度：2009
卷号：9
期号：1
页码：143-156
DOI：10.6092/issn.1973-9494/1747
语种：English
出版社：Dipartimento dei Beni Culturali, Alma Mater Studiorum, Università di Bologna (Ravenna)
摘要：Optical and SEM-EDS microscopy, FT-IR and mFT-IR spectroscopy investigations have been applied to the study of alteration and degradation products of a Roman sarcophagus located in the medieval cloister of St Cosimato’s Convent, now the new “Regina Margherita Hospital” (Rome) before restoration work. This scientific analysis was performed in order to compare it with a diagnosis report based on the restorer’s expertise. The sarcophagus is small and consists of a single block of fine-grained marble covered by a thick pink patina. The results obtained from this diagnostic investigation, allow us to draw important conclusions about the state of conservation of this archaeological artefact. The main components found in the samples analyzed are: black crust, calcium oxalate, organic matter due to recent conservation treatment, calcite, iron-oxides and coloured earths. In particular, the combined used of petrographical and mFT-IR analysis provided useful insights into the polishing and consolidation processes of archaeological artefacts.