摘要：Perdigões is a large ditched enclosure dated from the Late Neolithic to the Late Chalcolithic/Early Bronze Age(cal BC 3400-2100), located in Reguengos de Monsaraz municipality (Évora district, South Portugal). Hexogenraw materials as ivory, variscite, cinnabar were recorded and several objects made of locally available rawmaterials show stylistic criteria that seem to reveal external provenances.This paper will address a specific assemblage of objects: stone idols and stone recipients recorded in funerarycontexts. This assemblage presents different typologies and raw materials, apparently marble or limestone,suggesting different origins for these artefacts, since both rocks do not occur locally, but regionally or evenlonger distance.One of the main goals of this work is to determine the nature of the used raw materials, by studying thecomposition of a set of stone idols and ritual stone vessels, together with geological samples (marbles andlimestones), trying to evaluate the degree of compositional homogeneity between items and possible areas oforigin, thus contributing to understand the interaction network in which Perdigões was involved. Anotherimportant achievement of the study was to determine whether Prompt Gamma Activation Analyses (PGAA)could be successfully used to trace the source(s) of those artefacts made of carbonate rich raw materials.The analysis of obtained results, particularly the statistical results obtained by Principal Component Analysis(PCA) and clustering methods applied on the chemical contents, clearly detach five groups between the stoneidols, while the vase sample analyzed has also a different chemical behaviour. The analyzed stone artefacts fromPerdigões show signs of both nearby and long distance procurement, as well as of unknown attribution
