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133 results on '"Barale, Luca"'

3. From field analysis to nanostructural investigation: A multidisciplinary approach to describe natural occurrence of asbestos in view of hazard assessment

Author

Petriglieri, Jasmine R., Barale, Luca, Viti, Cecilia, Ballirano, Paolo, Belluso, Elena, Bruno, Maria R., Campopiano, Antonella, Cannizzaro, Annapaola, Fantauzzi, Marzia, Gianchiglia, Flaminia, Montereali, Maria R., Nardi, Elisa, Olori, Angelo, Piana, Fabrizio, Tomatis, Maura, Rossi, Antonella, Skogby, Henrik, Pacella, Alessandro, and Turci, Francesco

Published
2023
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14. Geology of the Arera-Vedra Valley mining area (Gorno district, Orobic Alps, Italy).

Author

Summino, Luca, Domenighini, Giulia, Giorno, Michele, Barale, Luca, Bertok, Carlo, Martire, Luca, Fiori, Nicolò Luigi, Schivo, Emanuele, and Piana, Fabrizio

Abstract

The 1:10,000 geological map of the Arera-Vedra Valley area covers an area of about 12 km2 in the Orobic Alps (Lombardy, N Italy), and is accompanied by five underground maps corresponding to different levels of historic mining works. The area is characterized by a Triassic stratigraphic succession that hosts one of the most important Zn-Pb mining districts in Italy (Gorno district). Original surface and underground geological mappings have been integrated with the analysis of drillhole stratigraphies and historic underground geological maps. Detailed geological cross sections correlating surface map data with those of the underground mining tunnels have been done. This work proposes a new map representation that is consistent with new interpretation of the geometry of the orebodies at depth, to serve as a tool for mining purposes (targets definition, mine design) and for a better understanding of the genesis of the Gorno 'Alpine-type' deposits. [ABSTRACT FROM AUTHOR]

Published
2024
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16. 154 Toward a General Approach to Risk Assessment of Naturally Occurring Asbestos and Asbestos-Like Minerals: the case of Fibrous Antigorite

Author

Turci, Francesco, primary, Petriglieri, Jasmine Rita, additional, Barale, Luca, additional, Gazzano, Elena, additional, Aldieri, Elisabetta, additional, Tomatis, Maura, additional, Ballirano, Paolo, additional, Piana, Fabrizio, additional, Campopiano, Antonella, additional, and Pacella, Alessandro, additional

Published
2023
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18. From field analysis to nanostructural investigation: A multidisciplinary approach to describe natural occurrence of asbestos in view of hazard assessment

Author

Petriglieri, Jasmine R, Barale, Luca, Viti, Cecilia, Ballirano, Paolo, Belluso, Elena, Bruno, Maria R, Campopiano, Antonella, Cannizzaro, Annapaola, Fantauzzi, Marzia, Gianchiglia, Flaminia, Montereali, Maria R, Nardi, Elisa, Olori, Angelo, Piana, Fabrizio, Tomatis, Maura, Rossi, Antonella, Skogby, Henrik, Pacella, Alessandro, and Turci, Francesco

Subjects
Elongate mineral fibre, Asbestos, Fibrous antigorite, Hazard assessment, NOA hazard
Published
2023

28. SYN-EXHUMATION PERVASIVE BRITTLE DEFORMATION IN THE VOLTRI (NW ITALY) SERPENTINITE: THE CHRYSOTILE-CEMENTED ACQUASANTA BRECCIA.

Author

Barale, Luca, Piana, Fabrizio, Avataneo, Chiara, Botta, Serena, Capitani, Giancarlo, Cossio, Roberto, Marcelli, Igor, Petriglieri, Jasmine Rita, Tallone, Sergio, Turci, Francesco, and Compagnoni, Roberto

Subjects
SERPENTINITE, BRECCIA, CHRYSOTILE, MICROSCOPY, VEINS (Geology)
Abstract

This paper sheds light on syn-exhumation, pervasive cataclastic processes occurred on competent serpentinites of a metaophiolitic sub-unit of the Voltri Massif. The reported data highlight the importance of the compositional and structural heterogeneities within the ophiolite-bearing exhumation channels, since the observed pervasive cataclastic processes affected only the more competent rock bodies of the metaophiolitic unit, giving origin to a serpentinite breccia, named as Acquasanta Breccia. This breccia is cemented by random-oriented chrysotile fibers that give rise to a very uncommon microstructure, as highlighted by optical microscopy, Micro-Raman spectroscopy, SEM-EDS and TEM investigations. The Acquasanta Breccia underwent a sequence of syn-exhumation tectonic events, accompanied by the onset of different generations and types of chrysotile, which occur both in veins and in the rock matrix. The breccia records the intermediate and late stages of the exhumation of the Voltri meta-ophiolites, which occurred after the development of the retrograde greenschist-facies foliation and before the late shallower faulting events. [ABSTRACT FROM AUTHOR]

Published
2023
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36. Using hydrothermal dolomite to constrain the age and genesis of Alpine-type Pb-Zn deposits. Insights from the Gorno district (Lombardy, Italy)

Author

Giorno, Michele, Barale, Luca, Bernasconi, Stefano, Bertok, Carlo, Frenzel, Max, Looser, Nathan, and Martire, Luca

Subjects
dolomite, sedimentary basins, Radiometric dating, U-Pb dating, economic geology, MVT, ore geology, Hydrothermal, Radiometric dating, U-Pb dating, dolomite, calcite, ore geology, economic geology, sedimentary basins, MVT, Hydrothermal, calcite
Published
2021

37. Syn-rift hydrothermal circulation in the Mesozoic carbonates of the western Adriatic continental palaeomargin (Western Southalpine Domain, NW Italy)

Author

Barale, Luca, Bertok, Carlo, d’Atri, Anna, Mantovani, Alizia, Martire, Luca, Agostini, Samuele, Bernasconi, Stefano M., Gerdes, Axel, Ferrando, Simona, Barale, Luca, Bertok, Carlo, d’Atri, Anna, Mantovani, Alizia, Martire, Luca, Agostini, Samuele, Bernasconi, Stefano M., Gerdes, Axel, and Ferrando, Simona

Abstract

Evidence of hydrothermal activity is reported for the Mesozoic pre- and syn-rift successions of the western Adriatic palaeomargin of the Alpine Tethys, preserved in the Western Southalpine Domain (NW Italy). The products of hydrothermal processes are represented by vein and breccia cements, as well as dolomitization and silicification of the host rocks. In the eastern part of the study area, interpreted as part of the necking zone of the continental margin, Middle Triassic dolostones and Lower Jurassic sediments are crossed by veins and hydrofracturing breccias cemented by saddle dolomite. The precipitation of dolomite cements occurred within the stratigraphic succession close to the sediment–water interface. Despite the shallow burial depth, fluid inclusion microthermometry and clumped isotopes show that hydrothermal fluids were relatively hot (80–150°C). In the western part of the study area, interpreted as part of the hyperextended distal zone, a polyphase history of host-rock fracturing is recorded, with at least two generations of veins cemented by calcite, dolomite and quartz. Vein opening and cementation occurred at shallow burial depth around the time of deposition of the syn-rift clastic succession. Fluid inclusion microthermometry on both quartz and dolomite cements indicates a fluid temperature of 90–130°C, again pointing to hydrothermal fluids. Both in Fenera-Sostegno and Montalto Dora areas, O, C and Sr isotope values, coupled with fluid inclusion and clumped isotope data, indicate that hydrothermal fluids derived from seawater interacted with crustal rocks during hydrothermal circulation. Stratigraphic and petrographic evidence, and U–Pb dating of dolomitized clasts within syn-rift sediments, document that hydrothermal fluids circulated through sediments from the latest Triassic to the Toarcian, corresponding to the entire syn-rift evolution of the western portion of the Adriatic palaeomargin. The documented hydrothermal processes are temporally correl

Published
2021

42. Les concepts geologiques dans les oeuvres publiees par Antoine Risso (Nice, 1777-1845)

Author

Barale Luca

Subjects
Risso, history of geology, fossils, Nice, Maritime Alps
Abstract

Giuseppe Antonio Risso (Nice, 1777-1845), considered one of the fathers of the niçois naturalists' school, became interested during its life in almost every aspect of the natural sciences. His geological explorations of the Maritime Alps, although of lesser importance if compared to his work in the zoological and botanical fields, laid the foundations for the development of the geological study of the region during the XIXth century.

Published
2020

47. Geo-referenced database of Ornamental and Building Stones from Piemonte region: from Heritage Stone exploitation to potential economical and social impacts.

Author

Gambino, Francesca, primary, Dino, Giovanna Antonella, additional, Borghi, Alessandro, additional, d'Atri, Anna, additional, Barale, Luca, additional, Favero Longo, Sergio Enrico, additional, Giardino, Marco, additional, Martire, Luca, additional, Perotti, Luigi, additional, and Piana, Fabrizio, additional

Published
2020
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