Raman microscopy and IR spectroscopy of prehistoric paintings from Los Murciélagos cave (Zuheros, Córdoba, Spain)
Identifieur interne : 000194 ( France/Analysis ); précédent : 000193; suivant : 000195Raman microscopy and IR spectroscopy of prehistoric paintings from Los Murciélagos cave (Zuheros, Córdoba, Spain)
Auteurs : Antonio Hernanz [Espagne] ; Martí Mas [Espagne] ; Beatriz Gavilán [Espagne] ; Belén Hernández [France]Source :
- Journal of Raman Spectroscopy [ 0377-0486 ] ; 2006-04.
English descriptors
Abstract
Some significant prehistoric paintings from the Los Murciélagos cave (Zuheros, Córdoba, Spain) have been studied by Raman microscopy in order to determine the nature of the pigments used. Amorphous carbon (charcoal) has been found in the black pictographs and haematite (α‐Fe2O3) has been found in the red ones. Clear differences between the degrees of alteration of paintings on several types of surfaces are observed. Therefore, samples of the corresponding rock substrata, cave walls and floor have been taken and analysed by IR spectroscopy. The rock of the painted panels, walls and floor is essentially calcite. Nevertheless, significant quantities of nitrates have been found on surfaces of the cave exposed to possible bat droppings. Paintings on these surfaces show a high degree of alteration, whereas pictographs on surfaces without nitrates, i.e. in positions protected from possible excrement falling from the top of the cave, are well preserved. The presence of nitrates is associated with the alteration of pictographs drawn in charcoal. Copyright © 2005 John Wiley & Sons, Ltd.
Url:
DOI: 10.1002/jrs.1422
Affiliations:
- Espagne, France
- Andalousie, Communauté de Madrid, Île-de-France
- Paris
- Université Pierre-et-Marie-Curie
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ISTEX:5E2BF198F65B672BB2ACFB63350E1CFD1AE2E991Le document en format XML
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Raman Spectrosc.</title><idno type="ISSN">0377-0486</idno><idno type="eISSN">1097-4555</idno><imprint><publisher>John Wiley & Sons, Ltd.</publisher><pubPlace>Chichester, UK</pubPlace><date type="published" when="2006-04">2006-04</date><biblScope unit="volume">37</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="492">492</biblScope><biblScope unit="page" to="497">497</biblScope></imprint><idno type="ISSN">0377-0486</idno></series><idno type="istex">5E2BF198F65B672BB2ACFB63350E1CFD1AE2E991</idno><idno type="DOI">10.1002/jrs.1422</idno><idno type="ArticleID">JRS1422</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0377-0486</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>IR</term><term>Raman microscopy</term><term>cave art conservation</term><term>pigments</term><term>prehistoric paintings</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Some significant prehistoric paintings from the Los Murciélagos cave (Zuheros, Córdoba, Spain) have been studied by Raman microscopy in order to determine the nature of the pigments used. Amorphous carbon (charcoal) has been found in the black pictographs and haematite (α‐Fe2O3) has been found in the red ones. Clear differences between the degrees of alteration of paintings on several types of surfaces are observed. Therefore, samples of the corresponding rock substrata, cave walls and floor have been taken and analysed by IR spectroscopy. The rock of the painted panels, walls and floor is essentially calcite. Nevertheless, significant quantities of nitrates have been found on surfaces of the cave exposed to possible bat droppings. Paintings on these surfaces show a high degree of alteration, whereas pictographs on surfaces without nitrates, i.e. in positions protected from possible excrement falling from the top of the cave, are well preserved. The presence of nitrates is associated with the alteration of pictographs drawn in charcoal. Copyright © 2005 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>Espagne</li><li>France</li></country><region><li>Andalousie</li><li>Communauté de Madrid</li><li>Île-de-France</li></region><settlement><li>Paris</li></settlement><orgName><li>Université Pierre-et-Marie-Curie</li></orgName></list><tree><country name="Espagne"><region name="Communauté de Madrid"><name sortKey="Hernanz, Antonio" sort="Hernanz, Antonio" uniqKey="Hernanz A" first="Antonio" last="Hernanz">Antonio Hernanz</name></region><name sortKey="Gavilan, Beatriz" sort="Gavilan, Beatriz" uniqKey="Gavilan B" first="Beatriz" last="Gavilán">Beatriz Gavilán</name><name sortKey="Mas, Marti" sort="Mas, Marti" uniqKey="Mas M" first="Martí" last="Mas">Martí Mas</name></country><country name="France"><region name="Île-de-France"><name sortKey="Hernandez, Belen" sort="Hernandez, Belen" uniqKey="Hernandez B" first="Belén" last="Hernández">Belén Hernández</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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