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This paper concerns Sasanian to Early Islamic period transport containers, usually lined with bitumen, known as Torpedo jars. Widely distributed throughout the western Indian Ocean, with outliers a...

The interdisciplinary study of Egyptian- and Greek-style pottery found in the Nile Delta aims to test and expand the potential of different scientific methods to identify regional variation and cultural traditions in ceramic fabrics from a relatively uniform geological setting. Neutron activation analysis (NAA), polarised light microscopy and SEM-EDX analyses were used to examine raw materials and technological tradition in 32 objects, including 15 previously partly analysed pieces, chosen to test the hypotheses of (a) chemical and (b) technological variation between regionally and/or culturally distinct pottery traditions. Several hundred published NAA data from other studies of Egyptian ceramics were re-assessed within this work. Our NAA results confirmed that all 28 objects analysed originated in Egypt, but could not distinguish production centres. Polarised light microscopy clarified the chaine operatoire and highlighted Greek and Egyptian technological traditions and regional variations in the production of macroscopically similar ware (e.g. Black Ware). SEM-EDX was essential in distinguishing different recipes used for slips, suggesting patterns of technological transfer and adaptation.

The shell-midden site of Riņņukalns in northern Latvia offers a rare opportunity to study long-term trends in ceramic production and function at a European hunter-fisher-gatherer site. Riņņukalns was occupied from the sixth millennium BC, with the midden developing from the later fourth millennium. Here, the authors discuss the chaîne opératoire and function of the Riņņukalns material, showing that pottery was used in both the pre-midden and midden phases primarily to cook aquatic and porcine resources. The technology used to produce these cooking vessels, however, changed over time, with new firing techniques associated with a shift to the use of shell temper. The results have implications for understanding prehistoric technology and subsistence in other parts of the world.