Determination of the asbestos content in metamorphic rocks

An article entitled "Estimation of natural asbestos content in rocks by fracture network modeling and petrographic characterization", has been recently published in Engineering Geology, issue 271. The article reports the results of a multidisciplinary research, carried out in consortium with the University of Turin, for the determination of the asbestos content in metamorphic rocks crossed by the excavation of the tunnel of the Gronda di Genova highway system. The research compared the results obtained by SEM-EDS analyses with those provided by statistical spatial analyses of the incidence of mineralized fractures. The research constitutes an advancement in the area of the determination of the content of minerals when in veins inside the fractures of a rock mass. The results provided by the two methods are comparable and considered encouraging in view of a systematic combined application to similar infrastructural projects in asbestos-bearing rocks. A parallel article concerning the same results of this research activity will  printed in the Boletín Geológico y Minero in July 2020.

Reference: Luca Barale, Serena Botta, Fabrizio Piana, Sergio Tallone, Corrado Fidelibus, Chiara Avataneo, Francesco Turci, Roberto Compagnoni, Roberto Cossio, Walter Alberto (2020). "Estimation of natural asbestos content in rocks by fracture network modeling and petrographic characterization. Engineering Geology, vol. 271, DOI: 10.1016/j.enggeo.2020.105566.

For further information please contact Luca Barale, CNR-IGG (luca.barale(at)igg.cnr(dot)it).