TY - JOUR
T1 - Colourless Roman glass from the Zadar necropolis
T2 - An exploratory approach
AU - Coutinho, I.
AU - Medici, T.
AU - Alves, L.c.
AU - Perović, Š.
N1 - sem pdf conforme despacho.
Portuguese Science and Technology Foundation (FCT-MCTES), under the projects UID/EAT00729/2013 and UID/Multi/04349/2013.
PY - 2017/10/1
Y1 - 2017/10/1
N2 - This paper presents the study of eighteen samples of colourless glass dated to the Roman period (1st to 3rd centuries C.E.) and that were unearthed in Zadar, Croatia. In this exploratory research, the chemical composition of the glass, which was determined by mu-PIXE, was divided into two main groups based on the alkali and alkali-earth contents: glass with low CaO and Al2O3, and high Na2O contents (Group 1), and glass with high CaO, Al2O3, and low Na2O contents (Group 2). The chemical composition from Group 1 is related to polygonal bottles and the composition from Group 2 to bell-shaped bottles, the latter being considered of local provenance. The analysis of MnO, Sb2O5 and Al2O3 contents and ratios suggests that only three samples from Group 1 were obtained from a primary glass source discoloured with Sb and the remaining fragments are the result of recycling activities, whereas all fragments from Group 2 were made using a different primary glass source discoloured with Mn. Finally, considering all the compositional characteristics of the analysed glass, it is proposed that the primary glass source of Group 1 was Egypt, and that glass from Group 2 came from the Levant region.
AB - This paper presents the study of eighteen samples of colourless glass dated to the Roman period (1st to 3rd centuries C.E.) and that were unearthed in Zadar, Croatia. In this exploratory research, the chemical composition of the glass, which was determined by mu-PIXE, was divided into two main groups based on the alkali and alkali-earth contents: glass with low CaO and Al2O3, and high Na2O contents (Group 1), and glass with high CaO, Al2O3, and low Na2O contents (Group 2). The chemical composition from Group 1 is related to polygonal bottles and the composition from Group 2 to bell-shaped bottles, the latter being considered of local provenance. The analysis of MnO, Sb2O5 and Al2O3 contents and ratios suggests that only three samples from Group 1 were obtained from a primary glass source discoloured with Sb and the remaining fragments are the result of recycling activities, whereas all fragments from Group 2 were made using a different primary glass source discoloured with Mn. Finally, considering all the compositional characteristics of the analysed glass, it is proposed that the primary glass source of Group 1 was Egypt, and that glass from Group 2 came from the Levant region.
KW - Roman Glass
KW - Croatia
KW - Colourless
KW - μ -PIXE
KW - Primary glass sources
KW - Recycling
U2 - 10.1016/j.jasrep.2017.07.025
DO - 10.1016/j.jasrep.2017.07.025
M3 - Article
VL - 15
SP - 194
EP - 202
JO - Journal of Archaeological Science: Reports
JF - Journal of Archaeological Science: Reports
SN - 2352-409X
ER -