A càrrec de Patrick DEGRYSE (Section Geology, Centre for Archaeological Sciences, Katholieke Universiteit Leuven, Bèlgica)
Organitzat conjuntament CSIC-UB

Data:16-12-2010
Hora: 12:00
Lloc: Sala d'actes de l'Institut Jaume Almera

Descripció:

In the past two decades, several attempts have been made to determine the provenance of ancient glass based on major, minor and trace elemental compositions and isotopic signatures of O, Pb, Sr and Nd. In particular, Sr-Nd isotopes have been shown to be promising indicators of different geological resources across the Mediterranean, and hence of glass manufacturing from these raw materials. Although it is not possible to directly compare the Sr-Nd signature of glass to sediments, significant chemical differences between different parts of the Mediterranean offer a great potential in tracing the origins of sand used in primary glass production. This paper presents the Sr-Nd isotopic characteristics of different silica sources around the Mediterranean, suitable for ancient glass production, and compares these chemical signatures to those of Hellenistic-Roman to Byzantine glass. In particular, the regions described by Pliny in 70 AD as being producers of primary glass (Syro