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Giulio Viola

Professore ordinario

Dipartimento di Scienze Biologiche, Geologiche e Ambientali

Settore scientifico disciplinare: GEO/03 GEOLOGIA STRUTTURALE


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Pubblicazioni antecedenti il 2004

Peer-reviewed publications:
  • Martin S., Bigazzi G., Zattin M., Viola G. and Balestrieri L., 1998: “Neogene kinematics of the Giudicarie fault (Central-Eastern Alps, Italy): new apatite fission-track data”, Terra Nova, 10, 4, 217-222.
  • Mancktelow N., Stöckli D., Grollimund B., Müller W., Viola G., Seward D. and Villa I., 2001: “The DAV and Periadriatic fault systems in the Eastern Alps south of the Tauern window”, International Journal of Earth Sciences (Geologische Rundschau), 90, 593-622.
  • Müller W., Prosser G., Mancktelow N., Villa I., Kelley S., Viola G. and Oberli F., 2001: “Geochronological constraints on the evolution of the Periadriatic Fault System (Alps)”, International Journal of Earth Sciences (Geologische Rundschau), 90, 623-653.
  • Viola G., Mancktelow N. and Seward D., 2001: “Late Oligocene - Neogene evolution of Europe-Adria collision: New structural and geochronological evidence from the Giudicarie fault system (Italian eastern Alps)”, Tectonics, 20, 999-1020.
  • Viola G., Mancktelow N., Seward D., Meier A. and Martin S., 2003: “The Pejo fault system: an example of multiple tectonic activity in the Italian Eastern Alps”, GSA Bulletin, 115, 5, 515-532.
  • Basson I. and Viola G., 2003: “Structural overview of selected Group II kimberlite dyke arrays in South Africa: implications for kimberlite emplacement mechanisms”, South African Journal of Geology, 106, 4, 375-394.
  • Viola G., Odonne F. and Mancktelow N., 2004: “Analogue modelling of inverse fault reactivation in strike-slip and transpressive regimes: application to the Giudicarie fault system, Italian eastern Alps”, Journal of Structural Geology, 26, 401-418.
  • Jelsma H., de Wit M., Thiart C., Dirks, P., Viola G., Basson I. and Anckar E., 2004: “Preferential distribution along transcontinental corridors of kimberlites and related rocks of Southern Africa”, South African Journal of Geology, 107, 1/2, 301-324.
  • Basson I. and Viola G., 2004: “Passive kimberlite intrusion into actively dilating dyke-fracture arrays: evidence from fibrous calcite veins and extensional fracture cleavage”, Lithos, 76, 283-297.
  • Viola G. and Mancktelow N., 2005: “From XY tracking to buckling: axial plane cleavage fanning and folding during progressive deformation”, Journal of Structural Geology, 27, 409-417.
  • Viola G., Andreoli, M., Ben Avraham, Z., Stengel I., and Reshef M., 2005: “Offshore mud volcanoes and onland faulting in southwestern Africa: Neotectonic implications and constraints on the regional stress field”, EPSL, 231, 147-160.
  • Bird, P., Ben Avraham, Z., Schubert, J., Andreoli M. and Viola, G., 2006: "Patterns of stress and strain rate in southern Africa", Journal of Geophysical Research, Solid Earth, 111, B08402, doi: 10. 1029/2005JB003882.
  • Viola, G., Mancktelow, N. and Miller J., 2006: "Cyclic frictional-viscous slip oscillations along the base of an advancing nappe complex: Insights into brittle-ductile nappe emplacement mechanisms from the Naukluft Nappe Complex, Central Namibia", Tectonics, 25, TC3016, doi: 10.1029/2005TC001939.
  • Anczkiewicz R., Viola G., Thirlwall, M., Müntener, O. and Quong, N., 2007: “Structure and shearing conditions in the Day Nui Con Voi massif, northern Vietnam: Implications for the evolution of the Red River fault", Tectonics, 26, TC2002, doi: 10.1029/2006TC001972.
  • Wilson, C.J.L., Russel-Head D.S., Kunze K. and Viola G., 2007: “The analysis of quartz c-axis fabrics using a modified optical microscope”, Journal of Microscopy, 227, 30-41.
  • Kounov, A., Niedermann, S., de Wit, M., Viola, G., Andreoli, M. and Erzinger J., 2007: "Present denudation rates at selected sections of the South African escarpment and the elevated continental interior based on cosmogenic 3He and 21Ne ", South African Journal of Geology, 110, 235-248.
  • Viola G. and Venvik Ganerød G., 2007: "Oskarshamn site investigation: Structural analysis of brittle deformation zones in the Simpevarp-Laxemar area, Oskarshamn, southeast Sweden, Report from Phase 1", SKB P-07-41. Svensk Kärnbränslehantering AB. Available on line from .
  • Viola G. and Venvik Ganerød G., 2007: "Oskarshamn site investigation: Structural characterization of deformation zones (faults and ductile shear zones) from selected drill cores and outcrops from the Laxemar area – Results from Phase 2. SKB P-07-227", Svensk Kärnbränslehantering AB. Available on line from .
  • Sandstad J.S. and Viola G., 2007: "Reconnaissance structural geological mapping and field XRF-analyses of the Ulveryggen copper deposit, Finnmark, Norway", NGU Report 2007.064.
  • Engvik, A.K., Tveten, E., Bingen, B., Viola, G., Erambert, M., Feito, P. and de Azavedo, S., 2007: "PT-t evolution and decompressional textures of Pan-African high-pressure granulites, Lurio Belt, northeastern Mozambique", Journal of Metamorphic Geology, 25, 9, 935-952.
  • Viola G. and Anczkiewicz R., 2008: “Exhumation history of the Red River shear zone in northern Vietnam: New insights from zircon and apatite fission-track analysis”, Journal of Asian Earth Sciences 33, 78-90.
  • Viola G., Sandstad J.S, Nilsson L.P. and Heincke B., 2008: "Structural and ore geological studies in the northwestern part of the Repparfjord Window, Kvalsund, Finnmark, Norway", 93 pp. NGU Report 2008.029.
  • Miller, J.A., Viola, G. and Mancktelow, N., 2008: "Oxygen, carbon and strontium isotope constraints on the mechanisms of nappe emplacement and fluid rock interaction along the subhorizontal Naukluft Thrust, central Namibia", Journal of the Geological Society of London, 165, 739-753.
  • Bingen, B., Nordgulen, Ø. and Viola G., 2008: “A four-phase model for the Sveconorwegian orogeny, SW Scandinavia”, Norwegian Journal of Geology, 88, 43-72.
  • Viola, G., Henderson, I.H.C., Bingen, B., Thomas, R., Smethurst, M.A. and De Azavedo, S., 2008: “Growth and collapse of a deeply eroded orogen: Insights from structural, geophysical and geochronological constraints on the Pan-African evolution of NE Mozambique”, Tectonics, 27, TC5009, doi: 10.1029/2008TC002284.
  • Viola G. and Venvik Ganerød G., 2008: "Oskarshamn site investigation: Structural characterization of deformation zones (faults and ductile shear zones) from selected drill cores from the Laxemar area – Results from Phase 3", SKB P-08-07. Svensk Kärnbränslehantering AB. Available on line from
  • Kounov A., Viola G., de Wit M. And Andreoli M., 2008: “A mid Cretaceous paleo-Karoo River valley across the Knersvlakte (NW coast of South Africa): Evidence from apatite fission-track analysis”, South African Journal of Geology, 111, 407-418.
  • Viola G., 2008: Ductile and brittle deformation history of the Laxemar-Simpevarp area; an independent analysis based on local and regional constraints. SKB R-08-124. Svensk Kärnbränslehantering AB. Available on line from
  • B. Bingen, J. Jacobs, G. Viola, I.H.C. Henderson, Ø. Skår, R. Boyd, R.J. Thomas, A. Solli, R.M. Key and E. Daudi, 2009: "Geochronology of the Precambrian crust in the Mozambique Belt of NE Mozambique, and implications for Gondwana assembly", Precambrian Research, 170, 231-255.
  • Kounov, A., Viola, G., de Wit, M. and Andreoli, M., 2009: "Denudation along the Atlantic passive margin: New insights from apatite fission-track analysis on the Western coast of South Africa", in Lisker, F., Ventura, B. and Glasmacher, U.A. (eds.) "Thermochronological methods: from paleotemperature constraints to landscape evolution models", Geological Society of London, Special Publications, 324, 287-306.
  • Viola, G., Venvik Ganerød G. and Wahlgren, C.-H., 2009: "Unravelling 1.5 Gyr of brittle deformation history in the Laxemar-Simpevarp area, SE Sweden: a contribution to the Swedish site investigation study for the disposal of highly radioactive nuclear waste", Tectonics, 28, TC5007, doi:10.1029/2009TC002461.
  • Viola, G. & Henderson, I.H.C., 2010: "Inclined transpression at the toe of an arcuate thrust: an example from the Precambrian "Mylonite Zone" of the Sveconorwegian orogen", in Law, R.D., Butler, R.W.H., Holdsworth, R.E., Krabbendam, M. & Strachan, R. A. (eds.) "Continental tectonics and Mountain building: The Legacy of Peach and Horne", Geological Society, London, Special Publications, 335, 707-727, doi: 10.1144/SP335.29.
  • Boyd, R. Nordgulen, Ø, 8 others, Viola, G., and 12 more, 2010: "The geology and geochemistry of the East African Orogen in NE Mozambique", South African Journal of Geology, 113, 87-129 ---- Prize for best publication in SAJG for 2010.
  • Macey, P.H., 9 others, Viola, G., and 12 more, 2010: "Mesoproterozoic geology of the Nampula Block, northern Mozambique: tracing fragments of Mesoproterozoic crust in the heart of Gondwana", Precambrian Research, doi: 10.1016/j.precamres.2010.07.005.
  • Saintot, A., Stephens, M.B., Viola, G. and Nordgulen, Ø., 2011: "Brittle tectonic evolution and paleostress field reconstruction in the southwestern part of the Fennoscandian Shield, Forsmark, Sweden", Tectonics, 30, TC4002, doi:10.1029/2010TC002781.
  • Viola, G., Mattila, J., Zwingmann, H. and Todd, A., 2011: "Structural and K/Ar illite geochronological constraints on the brittle deformation history of the Olkiluoto region, southwest Finland", Posiva OY working report 2011-37.
  • Dufréchou. G., Odonne, F. and Viola, G., 2011: "Analogue models of second order faults genetically linked to a circular strike-slip fault system", Journal of Structural Geology, 33, 1193-1205.
  • Viola, G., Henderson, I.H.C., Bingen B., and Hendriks B.W.H., 2011: "The Grenvillian-Sveconorwegian orogeny in Fennoscandia: Back thrusting and extensional shearing along the "Mylonite Zone", Precambrian Research, 189, 368-388.
  • Henderson, I.H.C. and Viola, G., 2011: "Implementering av digital berggrunnskartlegging ved Norges Geologiske Undersøkelse–NGU", Mineralproduksjon, 1, 83-101.
  • Viola, G., Kounov, A., Andreoli, M. and Mattila, J., 2012: "Brittle tectonic evolution along the western margin of South Africa: more than 500 Myr of continued reactivation", Tectonophysics, 93-114.
  • Viola, G., Zwingmann, H., Mattila, J. and Käpyaho, A., 2013: "K/Ar illite age constraints on the Proterozoic formation and reactivation history of a brittle fault in Fennoscandia", Terra Nova, 25, 3, 236-244.
  • Möller, C., Bingen, B., Andersson, J., Stephens, M.B., Viola, G. and Scherstén, A., 2013: "A non collisional, accretionary Sveconorwegian orogen - A Comment", Terra Nova, 25, 2, 165-168.
  • Torgersen, E., Viola, G., Sandstad, J.S. and Stein, H., 2013: "Structural constraints on the formation of Cu-rich mesothermal vein deposits in the Repparfjord Tectonic Window, northern Norway", 12th SGA Biennial Meeting, Uppsala, Sweden. Peer reviewed extended abstract.
  • Kounov, A., Viola, G., Dunkl, I. and Frimmel, H.E., 2013: "Southern African perspectives on the long-term morpho-tectonic evolution of cratonic interiors", Tectonophysics, 601, 177-191.
  • Fritz H., 12 others and Viola, G. (invited review paper), 2013: "Orogen styles in the East African Orogens: A review of the Neoproterozoic to early Phanerozoic tectonic evolution", Journal of African Earth Sciences, 86, 65-106.
  • Mattila, J. and Viola, G., 2014: "New constraints on 1.7 Gyr of brittle tectonic evolution in southwestern Finland derived from a structural study at the site of a potential nuclear waste repository (Olkiluoto Island)", Journal of Structural Geology, 67, 50-74.
  • Torgersen, E. and Viola, G., 2014: "Structural and temporal evolution of a reactivated brittle-ductile fault: Part I. Fault architecture, strain localization mechanisms and deformation history", EPSL, 407, 205-220.
  • Torgersen, E., Viola, G., Zwingmann, H. and Harris, C.J., 2014: "Structural and temporal evolution of a reactivated brittle-ductile fault: Part II. Timing of fault initiation and reactivation by K-Ar dating of synkinematic illite", EPSL, 407, 221-233.
  • Kounov, A., Niedermann, S., de Wit, M.J., Codilean, A.T., Viola, G., Andreoli, M. and Christl, M., 2014: "Cosmogenic 21Ne and 10Be reveal a more than 2 Ma alluvial fan flanking the Cape Mountains, South Africa", South African Journal of Geology, 118.2, 129-144.
  • Torgersen, E., Viola, G., Zwingmann, H. and Henderson, I.C., 2015: "Inclined K-Ar illite age spectra in brittle fault gouges: Effects of fault reactivation and wall-rock contamination", Terra Nova, 27, 106-113.
  • Roberts, N.M.W., Slagstad, T. and Viola, G., 2015: "Orogenesis in the Mesoproterozoic", Precambrian Research, 265, 1-9.
  • Scheiber, T., Viola, G., Bingen, B., Peters, M. and Solli, A., 2015: "Multiple reactivation and strain localization along a Proterozoic orogen-scale deformation zone: the Kongsberg-Telemark boundary of southern Norway revisited", Precambrian Research, 265, 78-103.
  • Kjøll, H.J., Viola, G., Menegon, L. and Sørensen, B.E., 2015: "Brittle-viscous deformation of vein quartz under fluid-rich low greenschist facies conditions", Solid Earth, 6, 681-669
  • Scheiber, T., Fredin, O., Viola, G., Jarna, A., Gasser, D and Łapińska-Viola, R., 2015: " Manual extraction of bedrock lineaments from high resolution LiDAR data: methodological bias and human perception", GFF, 137, 4, 362-372---- Prize for the best GFF publication in 2015.
  • Torgersen, E., Viola, G., Sandstad, J.S., Stein, H., Zwingmann, H. and Hannah, J., 2015: "Effects of frictional-viscous oscillations and fluid flow on the structural evolution and Re-Os pyrite-chalcopyrite systematics of Cu-rich carbonate veins in northern Norway", Tectonophysics, 659, 70-90.
  • Henderson, I.H.C., Viola, G. and Nasuti, A.: 2015: "A new tectonic model for the Palaeoproterozoic Kautokeino Greenstone Belt, northern Norway, based on high-resolution airborne magnetic data and field structural analysis and implications for mineral potential", Norwegian Journal of Geology, 95, 1-26.
  • Wang, Y., Zwingmann, H., Zhouh, L., Lo, C., Viola, G. and Hao, J.: 2016: "Direct dating of folding events by 40Ar/39Ar analysis of synkinematic muscovite from flexural-slip planes", Journal of Structural Geology, 83, 46-59.
  • Torgersen, E., Viola, G. and Sandstad, J.S., 2015: "Revised structure and stratigraphy of the northwestern Repparfjord Tectonic Window, northern Norway", Norwegian Journal of Geology, 95, 1-25.
  • Bingen, B., Solli, A., Viola, G., Torgersen, E., Sandstad, JS., Whitehouse, M.J., Skår, Ø., Ganerød, M. and Nasuti, A., 2015: "Geochronology of the Palaeoproterozoic Kautokeino Greenstone Belt, Finnmark, northern Norway: Tectonic implications in a Fennoscandia context", Norwegian Journal of Geology, 95, 1-32.
  • Scheiber, T., Viola, G., Wilkinson, C.M., Ganerød, M., Skår, Ø. and Gasser, D., in press: "Direct 40Ar/39Ar dating of Late-Ordovician and Silurian brittle faulting in the southwestern Norwegian Caledonides", Terra Nova, DOI: 10.1111/ter.12230
  • Fredin, O., Viola, G., Zwingmann, H., Sørlie, R., Brönner, M., Lie, J-E., Grandal, E.M., Müller, A., Margreth, A., Vogt, C. and Knies, J., submitted: “The inheritance of a Mesozoic landscape in western Scandinavia”, Nature Communications.
  • Viola, G., Scheiber, T., Fredin, O., Zwingmann, H., Margreth, A., Knies, J., 2016: "Deconvoluting complex structural histories archived in brittle fault zones", Nature Communications 7,13448 doi: 10.1038/ncomms13448.


  • Mapping and compilation of sheets "Ribaue-Mecuburi" and "Malema", Northern Mozambique, at the 1: 250.000 scale. Coauthor of the "Explanation notes" to the new geological maps, with main responsibility for the compilation of the "Structural geology" and "Tectonic-Geodynamic model" chapters.
  • Viola, G., Bingen, B. and Solli, A., 2016: “Berggrunnskart, Kongsberg litotektoniske enhet, Kongsberg-Modum-Hønefoss, 1:100 000”, NGU, Norges Geologiske Undersøkelse.