This paper deals with the archaeometric study and analysis of lime based plasters recently found in thearchaeological settlement of Scauri, located in the homonymous bay at the island of Pantelleria (centralMediterranean, Strait of Sicily). The Bay of Scauri is sited in the south-west part of the island. It can beconsidered a natural harbour overlooking the coast of Cape Bon in Tunisia. Since the 1999, thearchaeological importance of place was reconsidered thanks to the recovering of huge remains of a LateRoman settlement dating back to the 4th-5th century AD. A production quarter, a residential area, a necropolisand a religious area were brought to light. The economy of the settlement was based on fishing, as well as onthe production of peculiar class of pottery, well known as Pantellerian ware, exported all over the westernMediterranean (Montana et al., 2007).The study of the production cycle of lime mortars and plasters having different end-use at the site of Scauri isthe object of this paper. It is well acknowledged that the island of Pantelleria is entirely composed ofvolcanic rocks (pyroclastic deposits and lava flows). Accordingly, for lime production it is essentiallyrequired the import of calcareous raw material from elsewhere. Also the selection criteria of the sandyaggregate are relevant and equally interesting in order to evaluate the technological level locally reached.Within this frame, a detailed mineralogical and petrographic characterization of the mortars was carried outby thin section petrography, for the complete compositional classification of the sand aggregate and thestratigraphy. Moreover, X-ray diffraction (XRD) and scanning electron microscopy (SEM-EDS) were carriedout with the purpose to investigate the composition of the lime-based binder. The analytical results allowedto highlight the pozzolanic reactions in the binder, to identify the provenance of the calcareous raw materialand to individuate different categories of mortar recipes in terms of intended use.
|Numero di pagine||1|
|Stato di pubblicazione||Published - 2016|