Aplicació d’anàlisi d’isòtops en la investigació arqueometal·lúrgica

Abstract

Isotopic analysis of archaeological metals plays a key role in provenance and trade/exchange studies. These analytical techniques were developed originally in the field of Earth Sciences for the study of rocks and minerals, but since the 60s of the XX century have also been used for the analysis of many ancient materials (metals, glass and glazed pottery). Of particular interest for tracing the provenance of metals is lead (Pb). Depending on age, type and geochemical composition of the ore source, different isotopic compositions are found. Due to isotopic ratios not changing through the metallurgical processes (smelting and melting),the isotopic fingerprint of one metal can be linked with the ore sources. Recent investigations with Cu, Sn and Os isotopes provide new paths for the study of the metals provenance.