Some Western Europe megaliths are well known for their paintings. Despite their diffusion through... more Some Western Europe megaliths are well known for their paintings. Despite their diffusion throughout Europe, they are most common in Northwest Iberia, predominantly in the Galicia and centre-north and north of Portugal. The rock-art paintings motifs have been interpreted as part as the funeral practices. However, archaeologists are often unaware on both the colorants composition and the technical solutions used on their production, which, also have a symbolic importance. In that context, the colorant composition of four northern Portugal megalithic barrows decorated with rock-art motifs (Eireira, Viana do Castelo; Arribadas, Esposende; Leandro 5, Maia; Leira das Mamas, Braga) was studied using a multi-analytical approach. The use of XRD, SEM-EDS, FTIR and GC-MS allowed the characterization of the painting techniques, pigments, and the organic compounds used as binders. The analytical results obtained allowed the recovery of important data about North-western prehistoric communities, namely the way they exploited existing resources and their ability to transform them.
The work was supported by UID/QUI/50006/2019 with funding from FCT/MCTES through national funds. ... more The work was supported by UID/QUI/50006/2019 with funding from FCT/MCTES through national funds. Cesar Oliveira acknowledges Instituto de Ciencias e Tecnologias Agrarias e Agro-Alimentares, Porto (ICETA), for his contract under project NORTE-01-0145-FEDER-000011. This work was also developed under the project ‘Funerary and ceremonial practices between the Neolithic and the Bronze Age approached by archaeometry’ (ARQUEOM/Project-Sept2014).
Some Western Europe megaliths are well known for their paintings. Despite their diffusion through... more Some Western Europe megaliths are well known for their paintings. Despite their diffusion throughout Europe, they are most common in Northwest Iberia, predominantly in the Galicia and centre-north and north of Portugal. The rock-art paintings motifs have been interpreted as part as the funeral practices. However, archaeologists are often unaware on both the colorants composition and the technical solutions used on their production, which, also have a symbolic importance. In that context, the colorant composition of four northern Portugal megalithic barrows decorated with rock-art motifs (Eireira, Viana do Castelo; Arribadas, Esposende; Leandro 5, Maia; Leira das Mamas, Braga) was studied using a multi-analytical approach. The use of XRD, SEM-EDS, FTIR and GC-MS allowed the characterization of the painting techniques, pigments, and the organic compounds used as binders. The analytical results obtained allowed the recovery of important data about North-western prehistoric communities, namely the way they exploited existing resources and their ability to transform them.
The work was supported by UID/QUI/50006/2019 with funding from FCT/MCTES through national funds. ... more The work was supported by UID/QUI/50006/2019 with funding from FCT/MCTES through national funds. Cesar Oliveira acknowledges Instituto de Ciencias e Tecnologias Agrarias e Agro-Alimentares, Porto (ICETA), for his contract under project NORTE-01-0145-FEDER-000011. This work was also developed under the project ‘Funerary and ceremonial practices between the Neolithic and the Bronze Age approached by archaeometry’ (ARQUEOM/Project-Sept2014).
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Posters by Jorge Guedes
In that context, the colorant composition of four northern Portugal megalithic barrows decorated with rock-art motifs (Eireira, Viana do Castelo; Arribadas, Esposende; Leandro 5, Maia; Leira das Mamas, Braga) was studied using a multi-analytical approach. The use of XRD, SEM-EDS, FTIR and GC-MS allowed the characterization of the painting techniques, pigments, and the organic compounds used as binders.
The analytical results obtained allowed the recovery of important data about North-western prehistoric communities, namely the way they exploited existing resources and their ability to transform them.
Papers by Jorge Guedes
In that context, the colorant composition of four northern Portugal megalithic barrows decorated with rock-art motifs (Eireira, Viana do Castelo; Arribadas, Esposende; Leandro 5, Maia; Leira das Mamas, Braga) was studied using a multi-analytical approach. The use of XRD, SEM-EDS, FTIR and GC-MS allowed the characterization of the painting techniques, pigments, and the organic compounds used as binders.
The analytical results obtained allowed the recovery of important data about North-western prehistoric communities, namely the way they exploited existing resources and their ability to transform them.