1. Archaeological Mortar Characterization Using Laser-Induced Breakdown Spectroscopy (LIBS) Imaging Microscopy
- Author
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Sarah Richiero, Claudio Sandoval, Christine Oberlin, Anne Schmitt, Jean-Claude Lefevre, Amina Bensalah-Ledoux, Daniel Prigent, Catherine Coquidé, Antoine Valois, Federico Giletti, Frédéric Pelascini, Ludovic Duponchel, Philippe Dugourd, Clothilde Comby-Zerbino, Vincent Motto-Ros, Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Archéologie et Archéométrie (ArAr), Université Lumière - Lyon 2 (UL2)-Université Claude Bernard Lyon 1 (UCBL), Universidad de Concepción - University of Concepcion [Chile], Matériaux et nanostructures photoniques (MNP), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Direction Régionale des Affaires Culturelles Pays de la Loire (DRAC - Pays de la Loire), Ministère de la Culture et de la Communication (MCC), Institut national de recherches archéologiques préventives (Inrap), University of Naples Federico II = Università degli studi di Napoli Federico II, Cetim Grand Est [Illkirch-Gra!enstaden], Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 (LASIRE), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), and Spectrométrie des biomolécules et agrégats (SPECTROBIO)
- Subjects
[PHYS]Physics [physics] ,[SPI]Engineering Sciences [physics] ,elemental imaging ,archaeological characterization ,[CHIM]Chemical Sciences ,Lime mortar ,micro-laser-induced breakdown spectroscopy ,Instrumentation ,Spectroscopy - Abstract
International audience; Lime mortar is a complex mixture resulting from hardening of lime, water, and aggregates. Lime mortar was used from the time of the Roman Empire until the Industrial Revolution. The recipes used differ according to the period, geographical area of preparation, craftsman, or function. This is why the study of archaeological mortars is of such great importance in building archaeology. In this study, we used laser-induced breakdown spectroscopy (LIBS) to characterize the elemental composition of three lime mortar samples with a µ-LIBS instrument, allowing elemental image compilation. These samples originate from three different geographical locations: Angers (France), Dardilly (France), and Pompeii (Italy), and were taken from buildings that had different functions: cathedral, aqueduct, and house, respectively. Thanks to image processing and the creation of masks, it was possible to extract not only the lime signature and nature of the aggregate but also its granulometry and circularity. All this information is essential for cultural heritage research. This study shows the potential of the LIBS technique in archaeometric analysis of archaeological mortars.
- Published
- 2022
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