2001
DOI: 10.1002/1097-4555(200101)32:1<17::aid-jrs658>3.0.co;2-1
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Raman spectroscopic study of 3000-year-old human skeletal remains from a sambaqui, Santa Catarina, Brazil

Abstract: A Raman spectroscopic study of red‐pigmented human bones from a 3000‐year‐old sambaqui burial was undertaken for the first time. Visible (633 nm) and near‐infrared (1064 nm) excitation were used to characterize the pigment and its substrate; the red pigment is haematite, iron(III) oxide, which proved to be of a pure form and for which no previous heat treatment processing had been adopted. There is clear evidence in heavily pigmented areas of a ‘limewash’ layer which had been applied to the body of the decease… Show more

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Cited by 62 publications
(25 citation statements)
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“…6b), in the spectra acquired with the 1064-nm line, is of great interest. Numerous researches, also performed on limewash/calcite wall paintings, have attributed this Raman feature to calcium hydroxides [20,21], and it was not observed with lower wavelength excitation [22]. Even if may seem surprising, the conversion of limewash to calcium carbonate by reaction with atmospheric carbon dioxide is a relatively slow process and unconverted calcium hydroxide can hang on for decades on wall painting substrates [19].…”
Section: Substrate Preparationmentioning
confidence: 99%
“…6b), in the spectra acquired with the 1064-nm line, is of great interest. Numerous researches, also performed on limewash/calcite wall paintings, have attributed this Raman feature to calcium hydroxides [20,21], and it was not observed with lower wavelength excitation [22]. Even if may seem surprising, the conversion of limewash to calcium carbonate by reaction with atmospheric carbon dioxide is a relatively slow process and unconverted calcium hydroxide can hang on for decades on wall painting substrates [19].…”
Section: Substrate Preparationmentioning
confidence: 99%
“…Pesquisas envolvendo fósseis estão inseridas em um cenário complexo e abrangente, onde a cooperação de pesquisadores de distintas áreas de conhecimento pode fornecer resultados inovadores a curtos e médios prazos, possibilitando o fomento do desenvolvimento científico nessa área. 20 Portanto, descrevemos aqui a análise por CG-EM dos extratos de sete amostras de âmbar provenientes da Bacia do Araripe, Formação Santana. O objetivo do trabalho consiste na determinação da composição molecular das amostras e, a partir desta, inferir a origem botânica dos referidos âmbares.…”
unclassified
“…Tais estudos têm, inclusive, fornecido importantes contribuições à compreensão da evolução, extinção e diversidade biológica da região tas áreas do conhecimento pode fornecer resultados inovadores a curto e médio prazos, fomentando o desenvolvimento científico nessa área 4 . Na literatura um pequeno número de trabalhos aborda estudos sobre a composição de peixes fossilizados do período Cretáceo, por meio de difração de raios-X e espectroscopia 5 .…”
unclassified