Search results for "Kiln"
showing 10 items of 17 documents
The indigenous settlement of Monte Iato (western Sicily): an ethnoarchaeometric approach for outlining local Archaic ceramic productions
2021
AbstractAn ethnoarchaeometric approach has been followed to identify the textural and compositional characteristics of the ceramic pastes produced in ancient Iaitas/Ietas, an indigenous site located in western Sicily on Monte Iato, a few tens of kilometres from Palermo. This approach was primarily motivated by the lack of discovered Archaic kilns or production sites/workshops and the inability to identify reference groups. Raw clays were sampled in the territory of San Cipirello and San Giuseppe Iato (today’s municipalities both sited on the northern slopes of Monte Iato), together with representative historic tiles and bricks locally produced until fairly recently. Grain-size analysis and …
The production of western Greek amphorae in Agrigento (Southern Sicily): An archaeometric and archaeological characterisation of the late 6th-4th cen…
2022
This paper aims at an interdisciplinary, archaeological and archaeometric characterisation of the western Greek amphorae series produced in late Archaic and Classical-period Agrigento (southern Sicily). The research is based on a macroscopic examination, according to the standardised methods of Fabrics of the Central Mediterranean (FACEM), combined with petrographic analyses of 21 amphorae samples of presumed local fabric found in Agrigento itself. These were found in the artisanal area outside Porta V, in the excavations South of the temple of Zeus, and in several Sicilian consumption sites. Furthermore, a selection of 12 coarse ware samples and three tiles, all of supposed local manufactu…
Árguinas II (Segorbe, Castellón): un centro de producción cerámico ibérico
2018
Diversas intervenciones arqueológicas realizadas en las últimas décadas en la zona de Segorbe (Castellón), han aportado numerosos hallazgos relacionados con yacimientos correspondientes al periodo ibérico. Entre ellos destaca el de Árguinas II, objeto de estudio en este artículo, que en base a los restos recogidos en sucesivas prospecciones permiten identificarlo como un centro alfarero ibérico cuyo momento de máxima producción se sitúa entre los ss. IV-III a.C. Algunos materiales sugieren una ocupación de la zona en época romana.
Fornaci e produzioni del Golfo di Castellamare (Sicilia nord-occidentale)
2020
L’area del Golfo di Castellammare (Sicilia occidentale) è nota per le numerose fornaci di età romana. In questo articolo, si cercherà di ricostruire l’attività di un’officina destinata principalmente alla produzione di laterizi con bollo ΟΝΑΣΟΥ, databile fra III e I secolo a.C. Ricerche precedenti hanno permesso di riconoscere nel produttore di questi laterizi lo stesso Onasus Segestanus citato nelle Verrine di Cicerone e di localizzarne una possibile officina presso la Baia di San Cataldo. La scoperta di nuovi laterizi bollati e di scarti ceramici assume notevole importanza per una ricerca sugli ateliers ceramici del Golfo di Castellammare e della Piana di Partinico. Ne deriva un quadro ag…
The blue enamels in the baroque decorations of the churches of Palermo, Sicily: Fe2+-coloured glasses from lime kilns
2009
Deep blue glasses coloured by octahedral Fe 2+ cations are often reported as textbook examples of blue pigmentation. However, despite the possibility of laboratory synthesis under reducing conditions, to date there are no well-reported occurrences of their production and use in the past. A thorough historical, ethnographic, mineralogical, and chemico-physical investigation of the 'smaltini di calcara' from several baroque churches in Palermo, Sicily, has revealed that the blue enamels widely used for altar decorations in the 17th and 18th centuries are actually a unique case of ancient blue glasses pigmented by divalent iron cations in distorted octahedral coordination. This mixed-alkali gl…
Ceramic production at Selinunte (Sicily) during the 4th and 3rd century BCE: New archaeometric data through the analysis of kiln wastes
2018
Abstract A set of 37 overfired ceramic samples was collected from the dump of two kilns sited in the productive area FF1 in the acropolis of Selinunte (south western Sicily), being specifically active in the period 409–250 BCE. The ceramic samples were analysed by thin-section petrography and chemical analysis, with the aim to establish a valuable ‘reference group’ representative of the ceramic produced at Selinunte during the Punic phase. The petrographic and chemical analyses allowed to state that the ceramic manufactures from the kilns operating in the FF1 insula are characterized by rather homogeneous textural/compositional features. The daily-use common ware here produced is characteri…
Archaeometric analysis of building ceramics and ‘dolia defossa’ from the Roman Imperial estate of Vagnari (Gravina in Puglia, Italy)
2021
Abstract This paper concerns the archaeometric analysis of ceramic finds dating to the Roman Imperial period, brought to light during the excavation campaigns conducted at Vagnari (Puglia) in south-east Italy. On the site of the central village (vicus) of this imperial estate, established by the Roman Emperor in the early 1st century CE, large dolia (wine vats) sunk into the floor of a winery of the 2nd century CE recently were brought to light. Other discoveries include kilns for the production of ceramic roof tiles and also kiln wasters such as misfired tiles. The purpose of the analytical approach was therefore twofold: 1) to establish the composition of local ceramic products and of raw…
Some factors affecting an increase in magnetic susceptibility of cement dusts
2001
The aim of the research was to explain reasons of fluctuation in magnetic susceptibility of cement dusts and the consequences for the environment. The research comprised measurements of magnetic susceptibility and Fe content in dusts, and also in raw materials, additives, fuels, mixtures and clinkers used for cement production. The samples were taken in four cement plants located in Opole Province (southern Poland). In addition to this, the influence of two production methods (dry and wet) on magnetic susceptibility of dusts and some aspects of ferrimagnetic minerals formation in the process of clinker burning were considered. It was proven that magnetic susceptibility of dusts depends on r…
Tang dynasty (618-907) bowl measured with PIXE
2017
Brownish bowl originating from an underwater shipwreck located near Belitung island in the Java Sea, some 600 km south-east from Singapore, has been measured with particle induced X-ray emission. This study was a pilot project for the – now a spin-off company – Recenart research team where one target was to evaluate the authenticity of the different type of art objects. PIXE measurements were done from three different material positions from a single bowl received from a customer. These locations were categorized as a bluish/greenish pigment (under glaze), thick glaze and the body clay. When the obtained data was compared to the other references from different dynasties and kiln sites, the …
Influenza della tecnica di estinzione pirolitica sulla capacità di campo di due biochar
2018
Il biochar è un materiale poroso ottenuto per degradazione termica di biomasse vegetali ed animali in assenza o scarsità di ossigeno (pirolisi). Attualmente in letteratura si trovano molti studi che riportano degli effetti nel miglioramento della fertilità dei suoli dopo applicazione di questo materiale. Tuttavia è anche riportato che applicazioni di biochar ai suoli possono risultare in un decremento della fertilità. Il punto cruciale nell’uso del biochar per il miglioramento della qualità dei suoli è nella sua caratterizzazione, ovvero nella valutazione delle sue caratteristiche chimiche e chimico-fisiche che possono influenzare il suo effetto nei suoli. Parametri molto importanti che def…