Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman

Detalhes bibliográficos
Autor(a) principal: de Faria,Dalva Lúcia A.
Data de Publicação: 2011
Outros Autores: Lopes,Francisco N., Souza,Luiz Antônio Cruz, Branco,Helena David de Oliveira Castello
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800012
Resumo: Rock art paintings from Abrigo do Janelão (Minas Gerais, Brazil) were non-destructively investigated by Raman Microscopy, aiming at the identification of materials used, their interaction and degradation. This technique is particularly tailored for heterogeneous samples and allows unequivocal identification of the substances present in the investigated sample. Pigments, were identified together with products of microbiological degradation; no binders were detected. White pigment was identified as calcite (CaCO3), whereas charcoal was used as black, goethite (α-FeOOH) as yellow and hematite (α-Fe2O3) as red. Whewellite (CaC2O4.H2O) and weddelite (CaC2O4.2H2O) were detected and their origin was assigned to degradation products from microbiological activity.
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spelling Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia ramanrock artpigmentsRamanRock art paintings from Abrigo do Janelão (Minas Gerais, Brazil) were non-destructively investigated by Raman Microscopy, aiming at the identification of materials used, their interaction and degradation. This technique is particularly tailored for heterogeneous samples and allows unequivocal identification of the substances present in the investigated sample. Pigments, were identified together with products of microbiological degradation; no binders were detected. White pigment was identified as calcite (CaCO3), whereas charcoal was used as black, goethite (α-FeOOH) as yellow and hematite (α-Fe2O3) as red. Whewellite (CaC2O4.H2O) and weddelite (CaC2O4.2H2O) were detected and their origin was assigned to degradation products from microbiological activity.Sociedade Brasileira de Química2011-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800012Química Nova v.34 n.8 2011reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422011000800012info:eu-repo/semantics/openAccessde Faria,Dalva Lúcia A.Lopes,Francisco N.Souza,Luiz Antônio CruzBranco,Helena David de Oliveira Castellopor2011-10-06T00:00:00Zoai:scielo:S0100-40422011000800012Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2011-10-06T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
title Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
spellingShingle Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
de Faria,Dalva Lúcia A.
rock art
pigments
Raman
title_short Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
title_full Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
title_fullStr Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
title_full_unstemmed Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
title_sort Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
author de Faria,Dalva Lúcia A.
author_facet de Faria,Dalva Lúcia A.
Lopes,Francisco N.
Souza,Luiz Antônio Cruz
Branco,Helena David de Oliveira Castello
author_role author
author2 Lopes,Francisco N.
Souza,Luiz Antônio Cruz
Branco,Helena David de Oliveira Castello
author2_role author
author
author
dc.contributor.author.fl_str_mv de Faria,Dalva Lúcia A.
Lopes,Francisco N.
Souza,Luiz Antônio Cruz
Branco,Helena David de Oliveira Castello
dc.subject.por.fl_str_mv rock art
pigments
Raman
topic rock art
pigments
Raman
description Rock art paintings from Abrigo do Janelão (Minas Gerais, Brazil) were non-destructively investigated by Raman Microscopy, aiming at the identification of materials used, their interaction and degradation. This technique is particularly tailored for heterogeneous samples and allows unequivocal identification of the substances present in the investigated sample. Pigments, were identified together with products of microbiological degradation; no binders were detected. White pigment was identified as calcite (CaCO3), whereas charcoal was used as black, goethite (α-FeOOH) as yellow and hematite (α-Fe2O3) as red. Whewellite (CaC2O4.H2O) and weddelite (CaC2O4.2H2O) were detected and their origin was assigned to degradation products from microbiological activity.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800012
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422011000800012
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.34 n.8 2011
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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