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Lara De Giorgi, Giovanni Leucci
Coratelli Mill: micro-geophysical investigations for structural diagnostics

The Social Innovation Project INCUL.TU.RE. INnovation in Culture in Tourism and in the Restoration, has had the aim of safeguarding and preserving the invaluable industrial heritage linked to the rural culture of Salento. In particular, we want to highlight in this contribution the results of the microgeophysical investigations carried out within the structure called Molino Coratelli. The investigation campaign was aimed both at identifying the reinforcements and any forms of instability (voids and /or fractures) possibly present inside the reinforced concrete slab and their state of conservation.

Valeria Comite, Donatella Bonelli, Paola Fermo
A preliminary study on black crusts from the Monumental Cemetery of Milan

This study is aimed at the characterization of black crusts taken from funerary monuments placed in the galleries of the Monumental Cemetery of Milan. Black crusts are degradation patinas that formed on carbonate stone surfaces by sulphation reaction. Sulphates formed by this reaction produce incrustations which incorporate various polluting particles (such as carbonaceous particles and heavy metals) that are the catalysts of this reaction. For this reason, black crusts can be considered passive samplers of pollutants over time. To characterize black crusts, different techniques have been used such as SEM-EDS, FT-IR / ATR, IC and TGA. This methodological approach made it possible to obtain information on the chemical and mineralogical composition of the crusts, and also on the pollution sources that have induced the stone decay.

Monica Alvarez de Buergo, Natalia Perez Ema, Rafael Fort, Manuel Garcia Rodriguez, María J. Varas, Mauro F. La Russa
DAMAGE assessment of cultural stone heritage in reservoir environments

DAMAGE project - recently funded - will address the analysis of the deterioration of stone constructions of cultural heritage located in fresh water reservoir environments, which, due to periods of drought, emerge totally or partially. In the selected case studies the construction materials and the type of deterioration will be characterized by in situ analysis with portable and non-destructive techniques (TND) and in the laboratory, together with simulation tests or accelerated artificial aging. Likewise, the technological development of some techniques will be carried out for its adaptation to be measured in underwater conditions, the development of a predictive mathematical model and the elaboration of a protocol in which the scientific-technical methodology to be followed is indicated when the study of the conservation status, deterioration and durability of stone patrimony submitted to partial and cyclic immersion and outcrop stages is approached.

Fabrizio Antonelli, Lorenzo Lazzarini, Stefano Cancelliere, Luigi Buffone
The coloured stones and marbles decorating the Odeion of Pompeii

The theatre area of Pompeii is located in the southwest region of the ancient town. It consists of the Quadriporticum together with the Large Theatre and the Odeion, the latter two structures forming a unitary complex, located one next to the other and very similar for their building structure and materials. The Odeoin is among the best preserved architectural monuments of Pompeii. Built in 80 BC, it was a smaller roofed theatre (theatrum tectum) hosting around 1500 spectators and devoted to shows and musical performances. The walls of the building are in opus reticulatum and opus incertum, with brick sail cladding in some sections and in the door jambs. This small theatre was decorated with secondstyle wall paintings and marble opera sectilia of which today remains evidence in the floor of the semicircular orchestra. The identification of the exotic coloured stones and marbles still in situ in the Odeion is here presented together with some general information about their origin, use and diffusion in the Mediterranean provinces of the Roman Empire.

Giuseppe Schirripa Spagnolo, Lorenzo Cozzella, Fabio Leccese
Project of Electronic Identity of painting

Artwork counterfeiting is an historical problem, which has nowadays still ancient solution, not based on innovative technology, due to the intrinsic nature of the artworks themselves. In this paper an innovative system based on smartphone acquisition and mobile application is depicted to verify artwork authenticity based on typical craquelure patterns present in ancient painting. These patterns are unique and can be modified only via a complete and accurate artwork restoration process. This approach is based on like biometry paradigm (analogue fingerprinting) adapted to the painting pattern.

Abraham Zerai, Patrizia Davit, Monica Gulmini, Alessandro Re, Roberto Giustetto, Lara Maritan, Serena Massa, Chiara Mandelli, Yohannes Gebreyesus, Alessandro Lo Giudice
Colorimetric Study of Ayla-Aksum amphorae from the Red Sea Coast of Eritrea

Colorimetric evaluation was applied on archaeological pottery from the ancient port city of Adulis in the Red Sea coast of Eritrea. Pottery samples belong to Ayla-Aksum typology, which had never been analysed by means of this technique. The experimental work focused on colorimetric measurements on different parts of the ceramic bodies to comprehend how the data can be related to fabric classification. Differences in the colorimetric parameters could provide helpful information on both technological processes of manufacture and fabric classification. Subtle variations in the colour coordinates have been detected and are interpreted in this study to ascribe differences. It has been proven that the information provided by colour measurements can be partially correlated to observations from stereo-microscopy and optical microscopy for a more in-depth description of the fabrics in the study of archaeological pottery.

Maria Cristina Caggiani, Alessia Coccato, Silvia Borghini, Paolo Mazzoleni, Alfonsina Russo, Germana Barone
Analytical data on marble sculptures polychrome traces (Palatine hill, Rome).

Polychromy in ancient statues is raising interest both from an archaeological and archaeometrical point of view. In this study we show analytical data obtained both non-invasively in situ and on micro-fragments in the laboratory. A complementary approach based on portable X-ray fluorescence and vibrational spectroscopies (Diffuse Reflectance Infrared Fourier Transform and Raman spectroscopies) was used for studying polychromy traces of two marble sculptures from excavations on the Palatine hill. This combined approach allowed the characterization of both pigments and organic media, highlighting the use of pigments such as ochres, Egyptian blue, leadbased compounds, malachite, and of gold.

Devi Taelman, Dimitri Van Limbergen, Fabrizio Antonelli
Archaeology and archaeometry of marbles in Roman central Adriatic Italy

This contribution presents the results of an archaeological and archaeometric study of the provenance and use of marble in Roman central Adriatic Italy. During the Late Republic and Early Empire, the area was one of the most urbanised regions in the Roman world. Most towns were extensively equipped with monumental buildings, often lavishly decorated with imported marbles. Provenance determination of polychrome marbles was obtained through macroscopic examination; thin section petrography, X-ray diffraction and stable isotopic analysis for white marbles. Results indicate the presence of a wide array of lithotypes from Italy, Greece (mainland and Aegean islands), Asia Minor, North Africa and Egypt, including varieties of white marble from Carrara, Proconnesos, Pentelikon, Thasos, Paros and Dokimeion.

M. Cataldo, F. Grazzi, A. Scherillo, A. Fedrigo, A. Depalmas, A. Canu, A. Brunetti
Non-invasive characterization of Nuragic bronzes through neutron based techniques

As part of a research project on Sardinian bronze metallurgy, neutron diffraction and neutron imaging experiments were performed on a set of Nuragic bronzes at the ISIS Neutron and Muon Source (Didcot, UK). Neutron based techniques are a very effective tool for the study of archaeological samples: neutron diffraction provides important information regarding the composition, the microstructure and the conservation status of metallic materials; while neutron imaging provides information about the structure and the morphology of the given samples. These data are of great value and, when compared with archaeological information, they can add new and different insights about the investigated artefacts. Furthermore, from data analysis, it is possible to answer some unresolved questions about the artefacts, such as their effective use and their manufacturing procedure. In this work, we present the results of the analysis of a bronze dagger.

N. V. Simbirtseva, P. V. Sedyshev, S. T. Mazhen, A. M. Yergashov, I. A. Saprykina, R.A. Mimokhod
Preliminary result of investigation of element composition of Kyathos (6th-4th centuries BCE) from the necropolis Volna 1 on the Taman Peninsula by Neutron Resonance Capture Analysis

Neutron Resonance Capture Analysis (NRCA) has been applied for a determination of an element composition of an archeological object. The method is non-destructive and based on registration neutron resonances in radiative capture and measurement the yield of reaction products in these resonances. The experiment was carried at the IREN Facility in Frank Laboratory of Neutron Physics. During the excavation of the burial ground Volna 1 on the Taman Peninsula in 2016-2018, a representative collection of archaeological material was obtained, dated within the 6th-4th centuries BCE. The Kyathos is one of these objects, which has been investigated by NRCA.

Page 131 of 977 Results 1301 - 1310 of 9762