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Establishing a new reference group of Keay 25.2 amphorae from Sidi Zahruni (Nabeul, Tunisia)
AbstractThis paper presents the results of the archaeometric study of African Keay 25.2 amphorae from the archaeological site of Sidi Zahruni (Beni Khiar, NE Tunisia), where this pottery was massively produced. A set of 43 amphorae was analysed with a combined approach consisting of thin-section petrography, X-ray powder diffraction (XRPD) and X-ray fluorescence (XRF), to establish a homogeneous reference group for this production. Although all the amphorae are petrographically very similar, three petro-fabrics were identified in terms of grain-size distribution and abundance of inclusions. Detailed digital image analysis, carried out on SEM-BSE images of some representative samples of each petro-fabric, was used to quantify the differences among them. Cluster analysis of XRPD data patterns also revealed groups of samples for which similar raw materials/paste and firing conditions were used, contributing to better assessment of information on the production process. Statistical multivariate treatment (principal component and cluster analyses) of chemical data and comparisons with 10 samples previously attributed to the Sidi Zahruni potteries show that the potsherds analysed here are similar from the geochemical viewpoint. Similar trends in the abundance and ratio of some trace and rare earth elements (REE) also indicate that the Sidi Zahruni amphorae were produced from a local clayey material collected from nearby outcrops of Upper Miocene deposits.
HighlightsArchaeometric study of African Keay 25.2 amphorae from Sidi Zahruni site, north-eastern Tunisia.Comparisons of both bulk chemical composition and trace and rare earth element (REE) patterns of both studied amphorae and those from literature data with local clayey materials allow defining the area from which the clay was supplied at Sidi Zahruni.New and consistent “reference group” for Keay 25.2 amphorae is established for Sidi Zahruni.
Establishing a new reference group of Keay 25.2 amphorae from Sidi Zahruni (Nabeul, Tunisia)
AbstractThis paper presents the results of the archaeometric study of African Keay 25.2 amphorae from the archaeological site of Sidi Zahruni (Beni Khiar, NE Tunisia), where this pottery was massively produced. A set of 43 amphorae was analysed with a combined approach consisting of thin-section petrography, X-ray powder diffraction (XRPD) and X-ray fluorescence (XRF), to establish a homogeneous reference group for this production. Although all the amphorae are petrographically very similar, three petro-fabrics were identified in terms of grain-size distribution and abundance of inclusions. Detailed digital image analysis, carried out on SEM-BSE images of some representative samples of each petro-fabric, was used to quantify the differences among them. Cluster analysis of XRPD data patterns also revealed groups of samples for which similar raw materials/paste and firing conditions were used, contributing to better assessment of information on the production process. Statistical multivariate treatment (principal component and cluster analyses) of chemical data and comparisons with 10 samples previously attributed to the Sidi Zahruni potteries show that the potsherds analysed here are similar from the geochemical viewpoint. Similar trends in the abundance and ratio of some trace and rare earth elements (REE) also indicate that the Sidi Zahruni amphorae were produced from a local clayey material collected from nearby outcrops of Upper Miocene deposits.
HighlightsArchaeometric study of African Keay 25.2 amphorae from Sidi Zahruni site, north-eastern Tunisia.Comparisons of both bulk chemical composition and trace and rare earth element (REE) patterns of both studied amphorae and those from literature data with local clayey materials allow defining the area from which the clay was supplied at Sidi Zahruni.New and consistent “reference group” for Keay 25.2 amphorae is established for Sidi Zahruni.
Establishing a new reference group of Keay 25.2 amphorae from Sidi Zahruni (Nabeul, Tunisia)
Baklouti, S. (author) / Maritan, L. (author) / Casas, Ll. (author) / Laridhi Ouazaa, N. (author) / Jàrrega, R. (author) / Prevosti, M. (author) / Mazzoli, C. (author) / Fouzaï, B. (author) / Larabi Kassaa, S. (author) / Fantar, M. (author)
Applied Clay Science ; 132-133 ; 140-154
2016-05-27
15 pages
Article (Journal)
Electronic Resource
English
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