Identification of pigments used in rock art paintings in Gode Roriso-Ethiopia using Micro-Raman spectroscopy |
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Authors: | Hugo Gomes Pierluigi Rosina Parviz Holakooei Tadele Solomon Carmela Vaccaro |
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Affiliation: | 1. Polytechnic Institute of Tomar, Quaternary and Prehistory Group of Geosciences Centre (uID 73 – FCT), Portugal;2. Earth Sciences Department, University of Ferrara, Italy;3. Authority for Research and Conservation of Cultural Heritage (ARCCH), Ethiopia |
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Abstract: | In this paper we present results on the rock art painting materials from the Gode Roriso rock shelter, located in the eastern Hararghe region of Ethiopia. This analysis included X-microfluorescence, Micro-Raman spectroscopy and microstratigraphy. As far as the results of the analysis are concerned, a white natural wax (beeswax), carbon black and iron oxides (a mixture of haematite and magnetite) along with charcoal particles (forming as a red colourant) have been applied on a natural substrate constituted of granite containing feldspar crystalline forms. Although very much a science-based piece of research, the results have far-reaching outcomes for understanding the sequencing of pigment application. |
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Keywords: | Beeswax Ethiopia Micro-Raman spectroscopy Rock art pigments |
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