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590 results on '"Mazzoleni, Paolo"'

156. Nondestructive investigation on the 17-18th centuries Sicilian jewelry collection at the Messina regional museum using mobile Raman equipment

Author

Barone, Germana, Bersani, D., Jehlička, J., Lottici, P. P., Mazzoleni, Paolo, Raneri, S., Vandenabeele, P., Giacomo, Di, and Larinà, C.

Subjects
gems, Raman spectrometries, Museum collections, IDENTIFICATION, IN-SITU, jewels, handheld Raman spectrometer, jewelry, portable Raman spectrometer, Spectroscopy, Materials Science (all), MINERALS, Languages and Literatures, GEMSTONES, GEMS
Published
2015

157. Archaeometric identification of Maltese imports in prehistoric Sicily : Zebbug phase pottery from Licata-Caduta (Agrigento)

Author

Barone, Germana, Gullì, Domenica, Mazzoleni, Paolo, Raneri, Simona, and Tanasi, Davide

Subjects
Pottery, Ancient -- Italy -- Sicily, ceramiche, Pottery, Ancient -- Malta, Temple period -- Malta, Agrigento (Italy) -- Antiquities, archeometria, petrografia, Mediterranean Region -- Civilization, Archaeology -- Methodology, Archaeometry, Protohistory, Trade routes -- Mediterranean Region -- History
Abstract

During the study of a pottery assemblage collected at the Sicilian site of Licata-Caduta (Agrigento), continuously occupied between the Neolithic and Early Bronze Age, some ceramics presented typologies, fabrics and surface treatments alien to Sicilian repertoires and closer to Maltese productions. Sampled for petrographic (OM) and chemical (XRF) analyses one artefact turned out to be produced in Malta and imported into Sicily. The search for its chronological and cultural placement has led to the discovery of the first certified Zebbug phase import in Sicily., peer-reviewed

Published
2015

161. Measuring Weathering and Nanoparticle Coating Impact on Surface Roughness of Natural Stones.

Author

Raneri, Simona, Crezzini, Jacopo, Arrighi, Simona, Boschin, Francesco, Alfieri, Ilaria, Barone, Germana, Bergamonti, Laura, Giamello, Marco, Lottici, Pier Paolo, and Mazzoleni, Paolo

Subjects
WEATHERING, SURFACE roughness, SURFACE texture, PROTECTIVE coatings, DISPERSION (Chemistry), NANOPARTICLES, POROUS materials
Abstract

The surface texture of a stone represents a sensitive parameter in evaluating its conservation state. In monuments and sculptures, in fact, external agents continuously alter the appearance of stones, determining peculiar weathering patterns and modifying properties such as retention of water and particles, interaction with light, color, and finishing. The application of protective coatings also determines changes in surface appearance of a stone, usually evaluated and monitored by color change tests. Surface metrology methods offer the possibility to quantify these changes, evaluating the impact of external agents (natural, i.e. weathering, and artificially, i.e. protective coatings) on natural stones. In this research, we demonstrate the potential of surface areal measurements in describing the evolution of weathering processes and the effects of protective treatments on porous stone materials. The obtained results suggest that the extent of the modifications is related to the scale of observation (small- vs. large-scale undulations, i.e. roughness and waviness, respectively), with an overall increase of surface roughness as the weathering proceeds. Unexpectedly, coatings based on nanoparticle dispersions increase the topographic height parameters, due to the absence of a homogeneous film. [ABSTRACT FROM AUTHOR]

Published
2019
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173. Characterization of emeralds by micro-Raman spectroscopy

Author

Bersani, D., Azzi, G., Lambruschi, E., Barone, Germana, Mazzoleni, Paolo, Raneri, S., Longobardo, U., and Lottici, P. P.

Subjects
Analisi non distruttiva, Gemme, Smeraldi, Emeralds, Gemology, Micro-Raman spectroscopy, Mineralogy, Photoluminescence, Materials Science (all), Spectroscopy, gemology, emeralds, micro-Raman spectroscopy
Published
2014

179. A portable versus micro-Raman equipment comparison for gemmological purposes: The case of sapphires and their imitations

Author

Barone, Germana, Bersani, D., Crupi, V., Longo, F., Longobardo, U., Lottici, P. P., Aliatis, I., Majolino, D., Mazzoleni, Paolo, Raneri, S., and Venuti, V.

Subjects
raman, Portable XRF, Corundum, gems, portable XRF, handheld Raman spectrometer, micro-Raman spectroscopy, Micro-Raman spectroscopy, gemmologia, Handheld raman spectrometer, mineralogia applicata, gems, corundum, handheld Raman spectrometer, micro-Raman spectroscopy, portable XRF, Gems, Materials Science (all), Spectroscopy
Published
2014

194. The effects of a Meso-Alpine collision event on the tectono-metamorphic evolution of the Peloritani mountain belt (eastern Sicily, southern Italy).

Author

CATALANO, STEFANO, CIRRINCIONE, ROSOLINO, MAZZOLENI, PAOLO, PAVANO, FRANCESCO, PEZZINO, ANTONIO, ROMAGNOLI, GINO, and TORTORICI, GIUSEPPE

Subjects
METAMORPHISM (Geology), OROGENIC belts
Abstract

The Peloritani Mountains, in the southern part of the Calabrian Terranes, southern Italy, have been classically interpreted as the product of the Paleogene brittle deformation of the European continental back-stop of the Neotethyan subduction complex. This reconstruction conflicts with the occurrence of an Alpine metamorphic overprint that affected portions of both the Variscan metamorphic units and part of the Mesozoic sedimentary covers of the mountain belt. New field data, integrated with petrographic, micro- and meso-structural analyses and stratigraphic investigation of the syn-tectonic terrigenous covers, well constrain a Paleogene collision event along the Africa–Nubia convergent margin that caused the exhumation of the Alpine metamorphic units of the Peloritani Mountains. The syn-collisional exhumation was associated with shearing along two major Africa-verging crustal thrusts arising from the positive tectonic inversion of the former European palaeomargin. Early tectonic motions occurred within the mountain belts and produced the exhumation of the external portions of the edifice. Later tectonic motions occurred along the sole-thrust of the entire edifice and caused the definitive exhumation of the entire mountain belt. The whole crustal thrusting lasted for a period of c. 10 Ma, during the entire Oligocene. The definitive southwestward emplacement of the Peloritani Mountain Belt onto the Neotethyan accretionary wedge was followed by two Late Oligocene – Early Miocene NW–SE-oriented right lateral shear zones, replacing the previous crustal thrust. These two strike-slip belts are interpreted as the surface expression of the deep-seated suture zone between the colliding Africa and Europe continental crusts. [ABSTRACT FROM AUTHOR]

Published
2018
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