Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
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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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 |
_version_ |
1750318112393134080 |