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Proceedings Paper

LIBS, Raman spectroscopy, and optical microscopy analyses of superficial encrustations on ancient tesserae in Lebanon
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Paper Abstract

The aim of research was determination of composition and nature of superficial deposits, cumulated at the selected mosaic’s tesserae from Lebanon. Selected were three series of objects from different locations, namely from the seaside and mountain archaeological sites as well as from the mosaics exposed in the city center. Analyzed were stone and ceramic tesserae. The selection of objects was dictated by wide diversification of factors influencing the state of preservation and composition of deposits in given location. Investigations were performed including LIBS, FT-IR, Raman spectroscopy and optical 3D microscopy. The experimental results included composition and kind of deposit at the tesserae surfaces, and composition of tesserae itself. Compounds in the superficial deposits were identified. Confirmed was occurrence of different encrustations in dependence on geographic localization of a given sample. The interpretation of results was supported by multivariate statistical techniques, especially by the factor analysis. Performed analyses constitute the pioneer realization in terms of determination of deposits composition at the surface of mosaics from the Lebanon territory.

Paper Details

Date Published: 11 July 2017
PDF: 13 pages
Proc. SPIE 10331, Optics for Arts, Architecture, and Archaeology VI, 103310J (11 July 2017); doi: 10.1117/12.2270001
Show Author Affiliations
Anna Tomkowska, Academy of Fine Arts in Warsaw (Poland)
Krzysztof Chmielewski, Academy of Fine Arts in Warsaw (Poland)
Wojciech Skrzyczanowski, Military Univ. of Technology (Poland)
Monika Mularczyk-Oliwa, Military Univ. of Technology (Poland)
Roman Ostrowski, Military Univ. of Technology (Poland)
Marek Strzelec, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 10331:
Optics for Arts, Architecture, and Archaeology VI
Luca Pezzati; Piotr Targowski, Editor(s)

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