Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary study
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/20807 |
Resumo: | The chemical and mineralogical composition of the Zambujeiro Dolmen ceramics was analysed using stereomicroscopy (SM), X‐ray diffraction (XRD), in‐situ X‐ray fluorescence spectroscopy (XRF) and scanning electron microscopy with X‐Ray energy dispersive spectroscopy detection (SEM‐EDS). Analyses have shown that quartz is the most abundant mineral in the ceramics, with feldspars, especially alkali feldspars (Na, K), being also present in the majority of the samples. Titanium‐iron oxide minerals, like ilmenite, were also detected in some samples. The nature of the clay minerals varies among the samples, but it was possible to identify illite/smectite which can help approximate the firing temperature of the ceramics. Overall, the ceramics’ composition is consistent with the geology of the area, confirming the local provenance of the materials used for its production. Analysis of the organic content was done using gas chromatography coupled with mass spectrometry (GC‐MS). The ceramic's organic content is likely from vegetable origin, which can be inferred from the presence of a high content of unsaturated fatty acids, various steroids of vegetable origin (campesterol, stigmasterol and beta‐sitosterol), absence of cholesterol (steroid of animal origin) and a ratio of fatty acids C16:C18 > 1. Biomarkers for the presence of resins from the genus Pinus, the diterpenoid derivatives such as dihydroabietic and isopimaric acids, were identified in some samples. The reason for the use of resinous materials can be attributed to their sealing or gluing properties, but they could also bring a characteristic flavour to the materials stored in the ceramic vessels. |
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Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary studyneolithic pottery, ceramics, chemical analysis,The chemical and mineralogical composition of the Zambujeiro Dolmen ceramics was analysed using stereomicroscopy (SM), X‐ray diffraction (XRD), in‐situ X‐ray fluorescence spectroscopy (XRF) and scanning electron microscopy with X‐Ray energy dispersive spectroscopy detection (SEM‐EDS). Analyses have shown that quartz is the most abundant mineral in the ceramics, with feldspars, especially alkali feldspars (Na, K), being also present in the majority of the samples. Titanium‐iron oxide minerals, like ilmenite, were also detected in some samples. The nature of the clay minerals varies among the samples, but it was possible to identify illite/smectite which can help approximate the firing temperature of the ceramics. Overall, the ceramics’ composition is consistent with the geology of the area, confirming the local provenance of the materials used for its production. Analysis of the organic content was done using gas chromatography coupled with mass spectrometry (GC‐MS). The ceramic's organic content is likely from vegetable origin, which can be inferred from the presence of a high content of unsaturated fatty acids, various steroids of vegetable origin (campesterol, stigmasterol and beta‐sitosterol), absence of cholesterol (steroid of animal origin) and a ratio of fatty acids C16:C18 > 1. Biomarkers for the presence of resins from the genus Pinus, the diterpenoid derivatives such as dihydroabietic and isopimaric acids, were identified in some samples. The reason for the use of resinous materials can be attributed to their sealing or gluing properties, but they could also bring a characteristic flavour to the materials stored in the ceramic vessels.Laboratório Hercules, Universidade de Évora2017-03-10T17:49:43Z2017-03-102014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/20807http://hdl.handle.net/10174/20807por2183-1335Departamento de Químicandndndndndndnddmt@uevora.pt709Manhita, AnaMartins, SérgioCosta, JoanaPrazeres, CátiaRocha, LeonorDias, CristinaMirão, JoséTeixeira, Dorainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:10:56Zoai:dspace.uevora.pt:10174/20807Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:12:11.602955Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary study |
title |
Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary study |
spellingShingle |
Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary study Manhita, Ana neolithic pottery, ceramics, chemical analysis, |
title_short |
Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary study |
title_full |
Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary study |
title_fullStr |
Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary study |
title_full_unstemmed |
Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary study |
title_sort |
Multi‐analytical approach for the study of Neolithic pottery from the Great Dolmen of Zambujeiro (Evora, Portugal)– a preliminary study |
author |
Manhita, Ana |
author_facet |
Manhita, Ana Martins, Sérgio Costa, Joana Prazeres, Cátia Rocha, Leonor Dias, Cristina Mirão, José Teixeira, Dora |
author_role |
author |
author2 |
Martins, Sérgio Costa, Joana Prazeres, Cátia Rocha, Leonor Dias, Cristina Mirão, José Teixeira, Dora |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Manhita, Ana Martins, Sérgio Costa, Joana Prazeres, Cátia Rocha, Leonor Dias, Cristina Mirão, José Teixeira, Dora |
dc.subject.por.fl_str_mv |
neolithic pottery, ceramics, chemical analysis, |
topic |
neolithic pottery, ceramics, chemical analysis, |
description |
The chemical and mineralogical composition of the Zambujeiro Dolmen ceramics was analysed using stereomicroscopy (SM), X‐ray diffraction (XRD), in‐situ X‐ray fluorescence spectroscopy (XRF) and scanning electron microscopy with X‐Ray energy dispersive spectroscopy detection (SEM‐EDS). Analyses have shown that quartz is the most abundant mineral in the ceramics, with feldspars, especially alkali feldspars (Na, K), being also present in the majority of the samples. Titanium‐iron oxide minerals, like ilmenite, were also detected in some samples. The nature of the clay minerals varies among the samples, but it was possible to identify illite/smectite which can help approximate the firing temperature of the ceramics. Overall, the ceramics’ composition is consistent with the geology of the area, confirming the local provenance of the materials used for its production. Analysis of the organic content was done using gas chromatography coupled with mass spectrometry (GC‐MS). The ceramic's organic content is likely from vegetable origin, which can be inferred from the presence of a high content of unsaturated fatty acids, various steroids of vegetable origin (campesterol, stigmasterol and beta‐sitosterol), absence of cholesterol (steroid of animal origin) and a ratio of fatty acids C16:C18 > 1. Biomarkers for the presence of resins from the genus Pinus, the diterpenoid derivatives such as dihydroabietic and isopimaric acids, were identified in some samples. The reason for the use of resinous materials can be attributed to their sealing or gluing properties, but they could also bring a characteristic flavour to the materials stored in the ceramic vessels. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01T00:00:00Z 2017-03-10T17:49:43Z 2017-03-10 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/20807 http://hdl.handle.net/10174/20807 |
url |
http://hdl.handle.net/10174/20807 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
2183-1335 Departamento de Química nd nd nd nd nd nd nd dmt@uevora.pt 709 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Laboratório Hercules, Universidade de Évora |
publisher.none.fl_str_mv |
Laboratório Hercules, Universidade de Évora |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799136604018704384 |