Naslov
An archaeometric approach to the Late Roman coarse ware from the ruralsettlement at Podšilo bay (Lopar, Rab Island, Croatia)
(An archaeometric approach to the Late Roman coarse ware from the ruralsettlement at Podšilo bay (Lopar, Rab Island, Croatia))

Autori
Nowacki, Bartosz ; Trzciński, Jerzy ; Konestra, Ana ; Welc, Fabian ; Waligóra, Paweł

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
ISA 2020/2022. 43rd International Symposium on Archaeometry. Lisbon, Portugal. Book of Abstracts / Dias, Isabel ; Prudêncio, Isabel ; Marques, Rosa - Lisabon : Instituto Superior Técnico, Lisboa, 2022, 191-191

Skup
ISA 2020/2022. 43rd International Symposium on Archaeometry

Mjesto i datum
Lisabon, Portugal, 16.05.2022. - 20.05.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
coarse wares ; 3D reconstruction ; fabric ; SEM-EDS ; chemical composition

Sažetak
Among the pottery excavated from the late Roman layers at Classe (Italy), the presence of coarse wareClasse type was highlighted by Gelichi (1983). From that time such coarse ware has been recognized inseveral upper Adriatic sites. Within the “Archaeological Topography of the Island of Rab” project, the site ofa Roman rural settlement is being excavated in Podšilo Bay, in N Lopar. In late antique layers (6th c.) notablequantities of coarse wares have been found. Initial analysis of this pottery has led to a hypothesis that someitems could have been imported from Italy and might belong to pots of the Classe type.One of the research problems of the project is determining the origin of coarse ware. The aim of the study isa typological characteristics of the best preserved Classe type pot from Podšilo and an archaeometricanalysis of its fabric. The aim was achieved by analysis of shape, dimensions and decorations. 3Dreconstruction was based on photographs and drawings processed with Blender software. Analysis of thefabric was accomplished by optical and SEM-EDS microscopy.The pot fragment with a red tint on the fracture (Munsell 7.5R 6/6) contains 5–10% white grains which are 2– 0.2 mm in size, sharp-edged, with an isometric shape, a platy habit and a glassy lustre. The grainsconcentrate on the both surfaces. Horizontal throwing marks can be noted on the interior, whereas the pot isblack-red on the exterior (Munsell 7.5R 2/1).The ceramic is composed of a medium homogenized clay mass (matrix) containing mineral grains. The matrixis poorly oriented, in some places with a turbulent arrangement and low porosity. The grains contain Ca andC, and small amounts of Si, Al, Mg, K and Na. The matrix comprises Si and Al, with the admixture of Ca, Feand Ti, and small amounts of K, Mg and Na.The ceramic material is composed of a raw material (sheet aluminosilicates – clay minerals) which have beenmultiply subject to high temperature, and of a temper, calcium carbonate(?) grains (probably calcite). Detailedanalysis with application of thin sections and advanced techniques will be required for a exact determinationof the composition and technological characteristics of the ceramic.This should allow for a comparison with similar vessels from western and upper Adriatic sites while furtheranalysis of the coarse wares from Podšilo will bring forth more detailed characterisation of its compositionand technological features, evidence the scale and origin of imports, and the local preferences in cookingwares in a timeframe of profound socio-economic changes.

Izvorni jezik
Engleski

Znanstvena područja
Arheologija

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