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https://hdl.handle.net/10316/114075
Título: | A multi-analytical evaluation of the depositional pattern on open-air rock art panels at "Abrigo del Lince" (Badajoz, Spain) | Autor: | Nicoli, Maria Eftekhari, Negar Vaccaro, Carmela Collado Giraldo, Hipólito Garcês, Sara Gomes, Hugo Lattao, Virginia Rosina, Pierluigi |
Palavras-chave: | Schematic rock art; Badajoz; Granite; Pigment analysis; SEM–EDS elemental mapping; Weathering; Biofilm; Patina | Data: | Fev-2023 | Editora: | Springer Nature | Projeto: | UIDP/00073/2020 UI/BD/150848/2021 |
Título da revista, periódico, livro ou evento: | Environmental Science and Pollution Research | Volume: | 30 | Número: | 9 | Resumo: | Microscopic observation correlated with chemical-mineralogical characterization was performed on pigment samples from "Abrigo del Lince" rock art site (V-IV millennium BC), in order to provide contributions to the study of prehistoric schematic art on granite in the province of Badajoz (Spain). The research objectives include the understanding of technological and cultural aspects, as well as of conservation and deterioration issues related to the pictographs. The multi-analytical approach encompasses the integration of microscopic observation, SEM-EDS analysis, micro-Raman spectroscopy, and ATR-FTIR and allowed to achieve a multispectral overview of the samples and to describe their varied composition and the alteration pattern which connects them. The main phases overlying the granitic bedrock and involved in this sequence are as follows: hematite, whewellite, and gypsum. While hematite could be stratigraphically considered the most ancient layer and assigned to the use of red ochre as a pigment, whewellite and gypsum are the main constituent of the alteration layer which forms a patina over the pictographs, due to weathering processes. Finally, the role of biofilms in rock art conservation is discussed, suggesting that, especially for what concern thin and homogenous layers of oxalates, their presence should not be necessarily considered an issue. | URI: | https://hdl.handle.net/10316/114075 | ISSN: | 1614-7499 | DOI: | 10.1007/s11356-022-23589-2 | Direitos: | openAccess |
Aparece nas coleções: | I&D CGUC - Artigos em Revistas Internacionais FCTUC Ciências da Terra - Artigos em Revistas Internacionais |
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A-multianalytical-evaluation-of-the-depositional-pattern-on-openair-rock-art-panels-at-Abrigo-del-Lince-Badajoz-SpainEnvironmental-Science-and-Pollution-Research.pdf | 21.94 MB | Adobe PDF | Ver/Abrir |
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