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Your search keyword '"Fioretti, Giovanna"' showing total 21 results
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21 results on '"Fioretti, Giovanna"'

1. A taphonomic and spatial distribution study of the new levels of the middle Pleistocene site of Notarchirico (670–695 ka, Venosa, Basilicata, Italy)

Author

Moncel, Marie-Hélène, Lemorini, Cristina, Eramo, Giacomo, Fioretti, Giovanna, Daujeard, Camille, Curci, Antonio, Berto, Claudio, Hardy, Bruce, Pineda, Antonio, Rineau, Valentin, Carpentieri, Marco, Sala, Benedetto, Arzarello, Marta, Mecozzi, Beniamino, Iannucci, Alessio, Sardella, Rafaelle, and Piperno, Marcello

Published
2023
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13. Glazed sgraffito ware from Torre Alemanna (Foggia, fifteenth to sixteenth century A.D.): technological aspects of a local production

Author

Fioretti Giovanna, Eramo Giacomo, Monno Alessandro, Busto Austacio, and Laviano Rocco

Subjects
Archeology, Anthropology
Abstract

The archaeometric investigation of 46 potsherds of “Torre Alemanna type” pottery aimed to define a compositional reference group and to understand the technological characteristics of its production. Principal component analysis applied to bulk chemical data (XRF) of the ceramic body showed a strong compositional homogeneity. Their comparison with local clays and 6 fragments of bricks sampled from the ceramic kiln, on the one hand, revealed the use of alluvial clays as raw material and, on the other hand, proved their fractionation for the production of pottery. The mineralogical assemblages detected by X-ray powder diffraction analysis inferred maximum firing temperatures between 750 and 1000 °C for the ceramic body. Polarising optical microscopy and scanning electron microscopy with energy dispersive spectroscopy (SEM–EDS) investigations on coating revealed the presence of quartz-rich white engobe covered with a high lead transparent glaze. The polychromatic decoration was analysed by colorimetry and EDS to compare the colour characteristics through all the potsherds. A temperature range between 780 and 950 °C of liquidus temperatures was inferred from the ternary phase diagram of PbO-Al2O3-SiO2 system. Overlap of temperature ranges for sintering of the ceramic body and maturing glaze points to a single firing of the Torre Alemanna type ware. The results obtained define the reference compositional group and technology of the Torre Alemanna type ware, already attested in several archaeological contexts of southern Italy, and showed a technological continuity with the past about the use of local carbonate-rich clays to produce fine pottery.

Published
2022
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17. Study and Conservation of the St. Nicola's Basilica Mosaics (Bari, Italy) by Photogrammetric Survey: Mapping of Polychrome Marbles, Decorative Patterns and Past Restorations.

Author

Fioretti, Giovanna, Acquafredda, Pasquale, Calò, Silvia, Cinelli, Mariagrazia, Germanò, Germano, Laera, Alessandro, and Moccia, Angelo

Subjects
*DIGITAL image processing, *IMAGE processing software, *MARBLE, *MARBLE sculpture, *DIGITAL mapping
Abstract

This present work focuses on the mapping of marbles, decorative patterns and area of the mosaics of the St. Nicola's Basilica in Bari (Italy) by their photogrammetric survey. The extraordinary importance of these mosaics is due to the stylistic uniqueness and the undisputed workmanship and to the employed materials for tesserae. These mosaics include the white and polychrome marbles, used in the Roman age and reused in medieval artistic production, and imitation stones used as substitutes during the past restorations. The digital survey was realised by the photogrammetric reconstruction of mosaics collecting a photo dataset, after the mosaics redrawing by an image processing software and finally implemented it with lithological identification marbles. It allowed to obtain a punctual mapping of materials, through which to identify original areas and restoration areas, decorative patterns, recurring geometries. The research carried out, supported by the photogrammetric reconstruction as established method for high resolution digital reproduction and mapping, not only ensures the conservation and improvement of the enjoyment of the mosaic floors of the St. Nicola's Basilica, but allows to conduct studies on materials, decorative patterns and restoration areas directly on the digitized product. [ABSTRACT FROM AUTHOR]

Published
2020
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