Elucidation of the Chemical Role of the Pyroclastic Materials on the State of Conservation of Mural Paintings from Pompeii
| Autor: | Maite Maguregui, Nerea Bordel, Juan Manuel Madariaga, Francesco Caruso, Bruno De Nigris, Héctor Morillas, Luis Javier Fernández-Menéndez, Silvia Pérez-Diez, Alberta Martellone, Massimo Osanna |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Painting
geography geography.geographical_feature_category 010405 organic chemistry Geochemistry p-LIBS Pyroclastic rock Mural General Chemistry General Medicine 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Volcano Leaching (pedology) Raman spectroscopy Thermodynamics modelling In situ characterisation Salt crystallisation Geology Groundwater |
| Zdroj: | Addi: Archivo Digital para la Docencia y la Investigación Universidad del País Vasco Addi. Archivo Digital para la Docencia y la Investigación instname RUO. Repositorio Institucional de la Universidad de Oviedo |
| Popis: | Pyroclastic strata have always been thought to protect the archaeological remains of the Vesuvian area (Italy), hence allowing their conservation throughout the centuries. In this work, we demonstrate that they constitute a potential threat for the conservation state of the mural paintings of Pompeii. The ions that could be leached from them and the ion‐rich groundwater coming from the volcanic soil/rocks, may contribute to salt crystallisation. Thermodynamic modelling not only allowed to predict which salts can precipitate from such leaching events, but also assisted the identification of additional sources of sulfates and alkali metals, to explain the formation of the sulfates identified in efflorescences from the mural paintings of Pompeii. For the future, fluorine, mainly related to a volcanic origin, can be proposed as a marker to monitor in situ the extent of the impact in the mural paintings of Pompeii. The research leading to these results has received funding from “la Caixa” Foundation (Silvia Pérez-Diez, ID 100010434, Fellowship code LCF/BQ/ES18/11670017). This work has been supported by the projects MADyLIN (Ministry of Economy, Industry and Competitiveness from Spain, Grant No. BIA2017‐87063‐P) funded by the Spanish Agency for Research AEI (MINECO-FEDER/UE) and MINECO-17-CTQ2016-77887-C2-1-R. |
| Databáze: | OpenAIRE |
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