Iron Age Fine Pottery From Châtillon‐s‐glâne and the Heuneburg

Maggetti, Marino; Schwab, H.

doi:10.1111/j.1475-4754.1982.tb00644.x

Cited by 25 publications

(14 citation statements)

References 5 publications

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“…This stamp is presently known in the towns of Industria and Augusta Taurinorum, and in its surroundings, Settimo Torinese, Brandizzo (Nardi, 2011), c) MAH stamp on a tile incorporated within the NW wall of the main church in Monteu da Po, modern town by former Industria. Maggetti and Schwab, 1982;Tema, 2009). After Van Klinken (2001), who tried to order phase transformations and magnetic properties of iron oxides particles, attention was then mainly focused onto archaeomagnetic dating of ceramics (Fouzai et al, 2012).…”

Section: Magnetic Characterizationmentioning

confidence: 99%

Material sources of the Roman brick-making industry in the I and II century A.D. from Regio IX, Regio XI and Alpes Cottiae

Scalenghe¹,

Barello²,

Saiano³

et al. 2015

Quaternary International

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Bricks, fine pottery, ceramic gears and tiles are among the human-made objects routinely recovered in\ud archaeological documentation. Sites associated with early civilizations can provide thousands of samples\ud from a single excavation. They come in endless varieties according to economic and social circumstances\ud and, as debris can last almost forever, provide important clues about the past behaviours in human\ud societies. Any information about the provenance of ceramics is highly valuable in archaeological analysis.\ud In the case of Roman brick-making, the provenance and manufacture of clayey materials are usually\ud interpreted only by studying stamps imprinted on the artefacts, when available. In this paper, the making\ud of bricks, tiles and other ceramics for building purposes is investigated, in relation to the possible sources\ud of raw materials used for the industry. The major questions to be solved relate to the sites from where the\ud Romans collected the raw materials, the technologies they applied to make bricks and other clayey\ud building materials, and how far have they transported raw resources and final products e i.e. mainly\ud bricks and tiles e after furnace treatments, considering that a crucial point was the nearby availability of\ud timber, water, and sandy soils without stones. Some achievements to classify artefacts with identical\ud provenance have been obtained, using the structural transformations induced in the material by thermal\ud treatments of pottery. Comparisons have been made of the trace elements chemical composition in ICPMS\ud and some physical properties, including magnetic, VSM hysteresis loops, and mineralogical features\ud with XRD and IR analysis, have been identified as proxies to elucidate the possible provenance of rough\ud materials, and appreciate the technologies used by the Roman brick-making industry

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Section: Magnetic Characterizationmentioning

confidence: 99%

Material sources of the Roman brick-making industry in the I and II century A.D. from Regio IX, Regio XI and Alpes Cottiae

Scalenghe¹,

Barello²,

Saiano³

et al. 2015

Quaternary International

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“…The presence of expandable phyllosilicates in ancient sherds fired at low temperature has been noted [4][5][6] and explained as a rehydration with respect to the reconstitution process of primary montmorillonite, which was partially decomposed during firing. Another process, neoformation of smeetite from the amorphous glass phase in the fired pottery, was observed in cooking pots and was related either to formation during use or in watersaturated soils [7].…”

Section: John Brdey and Sons Limited Chichestermentioning

confidence: 99%

Rehydroxyiation of clay minerals and hydration in ancient pottery from the ‘Land of Geshur’

Shoval

Beck

Kirsh

et al. 1991

Journal of Thermal Analysis

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Rehydroxylation of clay minerals and hydration in Bronze and Iron Age pottery from the 'Land of Geshur' (east of the Sea of Galilee), were investigated by IR thermospectrometry. A weak OH band, which resembles those in smectite or illite, exists in most samples, but it is masked by the water bands at lower temperature. Two types of transformation of clay minerals occur during firing of raw materials, reversible and nonreversible dehydroxylation, taking place at a relatively low and high firing temperatures, respectively.Clay minerals rehydroxylate and reconstruct after relatively higher firing temperatures in noncalcareous raw materials than in calcareous ones. These processes take place after higher temperatures in cooking pots made from the former type of raw material as compared with storage and table-ware vessels made from the latter.The absorbed water in the pottery is mainly connected with the dominant X-ray amorphous matter formed by the firing process.During the firing of raw materials to pottery, processes of dehydration and dehydroxylation of clay minerals, as well as formation of X-ray amorphous matter, usually occur [1]. It is well known that after firing, some clay minerals in the fired matter may rehydroxylate and reconstruct [2, 3]. The most careful study of these processes by complementary methods was made for triphormic dioetahedral clay minerals [3]. In illite and smectite, rehydration and rehydroxylation occur at room temperature, after being dehydrated and dehydroxylated by heating to temperatures as high as 800 ~ Those processes include both picking up of adsorbed water and recovery of lattice hydroxyl groups. The rehydration of interlayer water in smectite is limited John Brdey & Sons, Limited, Chichester Akad~iai Kiad6, Budapest

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“…These methods usually monitor relationships between the firing temperature and changes occurred in mineralogy and microstructure of ceramics' bodies. These studies are generally developed by the analytical methods such as Fourier transform infrared spectroscopy [15][16][17], thermal analysis [2,[18][19][20][21][22][23][24][25][26][27], Möss-bauer spectroscopy [28], or by studying the properties associated with changes in mineralogy such as colour [29,30], porosity [31][32][33], hardness [1] and magnetic properties [34][35][36]. Sometimes the changes occurred in the firing process are observed by scanning electron microscope (SEM) in terms of estimating the vitrification observed within the clay matrix of ceramic [37][38][39].…”

Section: Introductionmentioning

confidence: 99%

“…These changes occur during firing of clay bodies can be monitored by XRD. Considering this fact, XRD, as a direct method, has constantly been of major interest in determining firing temperature of ancient ceramics [4,24,33,35,[43][44][45][46][47][48][49].…”

Section: Introductionmentioning

confidence: 99%

A new look at XRD patterns of archaeological ceramic bodies

Holakooei

Tessari

Verde

et al. 2014

J Therm Anal Calorim

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In this paper, the general rules of phase transformations in calcareous clay bodies during firing were used to estimate the equivalent firing temperature (EFT) of seventeenth century polychrome Persian haft rang tiles based on their X-ray diffraction (XRD) patterns. The novelty of this work is, however, that it handles the XRD patterns of archaeological clay bodies with principal component analysis (PCA) in order to have a new look at their firing and thermal behaviour. Statistically handling the XRD patterns, different clusters were discriminated in the clay bodies whose mineralogical composition showed various proportions of amorphous and quartz contents. The results showed interesting trends in the different clusters in terms of the EFT, quartz content, and the density of the bodies. The present work uses PCA for the first time to have a new look at XRD patterns of archaeological clay bodies and, moreover, to interpret the PCA results in order to estimate the EFT of a large number of archaeological clay bodies

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Iron Age Fine Pottery From Châtillon‐s‐glâne and the Heuneburg

Cited by 25 publications

References 5 publications

Material sources of the Roman brick-making industry in the I and II century A.D. from Regio IX, Regio XI and Alpes Cottiae

Material sources of the Roman brick-making industry in the I and II century A.D. from Regio IX, Regio XI and Alpes Cottiae

Rehydroxyiation of clay minerals and hydration in ancient pottery from the ‘Land of Geshur’

A new look at XRD patterns of archaeological ceramic bodies

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