Prof.ssa Alessandra Montanini

Professore Associato

Temi di ricerca

RESEARCH INTERESTS

  • Anorogenic and post-collisional volcanism in the Mediterranean area
  • Petrogenesis and tectono-metamorphic evolution of deep continental crust rocks
  • Study of the metamorphic basement of the northern Apennines
  • Petrogenesis of fossil ophiolitic sequences formed in different geodynamic settings (ocean-continent transition, slow-spreading ridge, subduction zones)
  • Evolution of the lithosphere in relation to extensional processes
  • Geochemical heterogeneity of the mantle
  • Redox conditions and formation of elemental carbon in the mantle
  • Origin of refractory domains in the mantle through geochemical study of samples from present-day oceans (W Iberia Margin, Newfoundland, Izu-Bonin Mariana)

RESEARCH ACTIVITY

The scientific activity is mostly focused on the petrology and geochemistry of ophiolites and mantle peridotites. The research includes: (1) study of lithological and geochemical heterogeneities in the mantle, mainly represented by pyroxenites, and processes of crustal recycling. The research on mantle pyroxenites is carried out using different geochemical approaches based both on lithophile and highly siderophile (HSE) elements and radiogenic isotopes (Nd, Hf, Os, Pb). The peridotite/pyroxenite associations occurring in exhumed mantle sequences from the Northern Apennine ophiolites (Italy) are investigated as proxies to understand the characteristics, origin and evolution of the heterogeneities present in the sources of the oceanic basalts. (2) field-based studies of fossil oceanic lithosphere formed at different geodynamic settings (ocean-continent transition, slow-ultraslow spreading ridges, supra-subduction zones). In particular, these studies aim to elucidate the processes of partial melting and melt-rock reaction/refertilization affecting the mantle sections of ophiolitic sequences from the Northern Apennines, Western Alps and New Caledonia. Different isotope systematics (Sr-Nd-Pb-Hf-Os) are employed to trace the heterogeneity of the depleted peridotites. This research line has been also devoted to the petrogenesis of magmatic rocks formed in the nascent island arcs. The scientific activity has been also addressed to investigate petrology, geochemistry and tectono-metamorphic evolution of continental lower crustal rocks and petrology and geochemistry of postcollisional and anorogenic Cenozoic magmatism in the Mediterranean area.

Researchgate profile: https://www.researchgate.net/profile/Alessandra_Montanini

Scopus Author ID: 6602991195

https://www.scopus.com/authid/detail.uri?authorId=6602991195

Google Scholar

https://scholar.google.it/citations?user=kBCAQTsAAAAJ&hl=it

 

SCIENTIFIC AND INSTITUTIONAL ACTIVITIES

2004-2019: Coordinator of the Working Group on Mediterranean Ophiolites (GLOM)

Co-Organizer of International workshop and field meetings on ophiolites and oceanic lithosphere: “Peridotite Workshop" 2005, Lanzo (TO) Italy - Corsica Field trip, 2007 - Alpine Ophiolites and Modern Analogues Workshop, Parma, 2009.

2018-2021: Member of the management board of the Italian Society of Mineralogy and Petrology (SIMP

2018: Co-organizer of pre-conference field trip “Rifting-related structures in the mantle section from the External Ligurian Ophiolites (Bobbio, Northern Apennine) “, EMAW, European Mantle Workshop, Pavia 25-30 giugno 2018, http://emaw2018iggpavia.unipv.it/?q=node/4

2019: Main organizer of the National Meeting “Congresso nazionale SIMP-SGI (Società Italiana di Mineralogia e Società Geologica Italiana, SIMP-SGI)”, Parma 16-19 settembre 2019

2021: Co-organizer of the International School MEREMA 2nd Edition -International School on Mantle Dynamics (24 - 29 October 2021, Sestri Levante (Italy)

2022: visiting professor at the School of Earth Sciences, University of Western Australia 

2023- Co-convener of the session “Ophiolite: A witness of Earth’s evolution”, Goldschmidt Conference, Lyon, France, 9-14 July 2023.

2023: Participation to ECORD Magellan Workshops MAREXKUS: “Mantle Remelting and hydrothermal chemical Exchange at Knipovich Ultraslow Spreading ridge” 1-3 March 2023, Rome; “Accessing the Circus-Iberian mantle archive of Wilson Cycle processes through Land-to-Sea drilling” 3-6 July 2023,  Plymouth, UK

A. Montanini has presented more than 100 contributions in national and international conferences.

Seminars and invited talks in various Italian and international meetings and schools. Most recent were held at the International Winter School “Melting and fluid/melt-rock reactions in the mantle”, Pavia 13-17 February 2017 (“Recycled crust in the mantle: evidence from natural samples and implications for the heterogeneities in the OIB-MORB sources”), Geosciences Montpellier in 2018 (“From crustal protoliths to mantle pyroxenites: a highly siderophile elements and Os isotope perspective from the Ligurian mantle section (N Apennine, Italy)” and Université de la Nouvelle Caledonie in 2019 (“Origin and evolution of the New Caledonia ophiolite: a reappraisal based on recent geochemical and Sr, Nd, Pb investigations”)

 

SCIENTIFIC COLLABORATIONS

  • Geoscience Montpellier, Universitè Montpellier, France
  • Steinmann Institute, University of Bonn, Germany
  • Chemistry and Physics of Earth Materials, GeoForschungsZentrum, Potsdam, Germany
  • Geological Survey of Western Australia, Dept. of Mines and Petroleum, Australia
  • School of Earth Sciences, University College Dublin,
  • institut für Geologische Wissenschaften, Freie Universität Berlin, Berlin, Germany
  • Institut des Sciences Exactes et Appliquées, Université de la Nouvelle-Calédonie, Nouméa, New Caledonia
  • Instit. Univ. Européen de la Mer, Brest, France
  • Departamento de Mineralogía y Petrología, Universidad de Granada

 

EDITORIAL ACTIVITY

Guest Editor of a Lithos Special issue "Alpine Ophiolites and Modern Analogues" (Montanini, A., Tribuzio, R., Piccardo, G.B., Dick, H. (2011) - Alpine ophiolites and modern analogues, Lithos, 124 (3-4), doi:10.1016/j.lithos.2011.03.012 and other Special Issues of Ofioliti Journal (2006, 2008, 2021)

Associate Editor of Ofioliti journal from 2014 to 2019

Executive Editor of Ofioliti journal starting from 2019

Manuscript reviewer for Chemical Geology, Contributions to Mineralogy and Petrology, European Journal of Mineralogy, Geochimica et Cosmochimica Acta, Geochemical Journal, International Journal of Earth Sciences, Lithos, Mineralogy and Petrology, Nature Geosciences, Ofioliti, Tectonophysics, Journal of Geophysical Research

 

RECENT FUNDED PROJECTS

Responsible of the Parma Unit Research for PRIN 2015 Grant "Melt-rock reaction and melt migration in the MORB mantle through combined natural and experimental studies" (P.I. Elisabetta Rampone, Univ. of Genova https://m-in-m-project.com)

Participation to the project “Tracing subducted crust in the oceanic mantle with siderophile elements and transition metal stable isotopes and implications for the sources of basaltic volcanism" (P.I. Ambre Luguet, Bonn University)”, funded by DFG (Germany), http://gepris.dfg.de/gepris/projekt/277251666

Responsible of Cariparma Foundation project (2023-2025) "Exploration of natural hydrogen emissions associated to ophiolitic bodies of the Parma province"

 

MAIN PEER REVIEWED SCIENTIFIC PUBLICATIONS

Secchiari, A., Montanini, A., Cluzel, D. (2022) – Hydrous mafic-ultramafic intrusives at the roots of a proto-arc: implications for crust building and mantle source heterogeneity in young forearc regions Contrib. Mineral. Petrol., 177, 50, doi: 10.1007/s00410-022-01912-x.

Secchiari, A., Montanini, A., Cluzel, D. (2022) -Temperatures and cooling rates recorded by the New Caledonia ophiolite: implications for cooling mechanisms in young forearc sequences. Geochemistry, Geophysics, Geosystems, 23, e2021GC009859. https://doi.org/10.1029/2021GC009859

Ferrari, E., Montanini, A., Tribuzio, R. (2022) - Rifting evolution of the lithospheric subcontinental mantle: new insights from the External Ligurian ophiolites. Lithos 410–411, 106571, https://doi.org/10.1016/j.lithos.2021.106571

Eslami, A., Borghini, G., Montanini, A., Grieco, G., Marchesi, C. (2021) - Petrological constraints on the origin of pyroxenite dykes in the lithospheric mantle of the Cheshmeh-Bid Ophiolitic Massif, Southern Iran. Ofioliti, in press. https://doi.org/10.4454/ofioliti.v46i1.538

Eslami, B. Malvoisin, G. Grieco, L. E. Aradic, C. Marchesi, A. Cavallo, A. Montanini, G. Borghini, R, Mathur, K. Ikehata, D. W. Davis, C. Li, C. Szabo (2020). Native copper formation associated with serpentinization in the Cheshmeh-Bid ophiolite massif (Southern Iran). Lithos, 382-383, 105953, https://doi.org/10.1016/j.lithos.2020.105953

Maurizot, D. Cluzel, M. Patriat, J. Collot, M. Iseppi, S. Le Simple, A. Secchiari, D. Bosch, A. Montanini, P. Macera, H. L. Davies (2020). Chapter 5, The Eocene Subduction–Obduction Complex of New Caledonia. In: “Geology and Mineral Resources of New Caledonia” Memoir of the Geological Society of London. Ed N. Mortimer- Geological Society, London, Memoirs, 51, 93-130, 2020, https://doi.org/10.1144/M51-2018-70

Salvioli-Mariani, E., Boschetti, T., Toscani, L., Montanini, A., Petriglieri, J.R., Bersani, D. (2020) - Multi-stage rodingitization of ophiolitic bodies from Northern Apennines (Italy): Constraints from petrography, geochemistry and thermodynamic modelling. Geosci. Frontiers, in press. https://doi.org/10.1016/j.gsf.2020.04.017

Secchiari, A., Montanini, A., Bosch, D., Macera, P., Cluzel, D. (2020) - Sr, Nd, Pb and trace element systematics of the New Caledonia harzburgites: tracking source depletion and contamination processes in a SSZ setting. Geoscience Frontiers, 11, 37-55, https://doi.org/10.1016/j.gsf.2019.04.004

Secchiari, A., Gleissner, Ph., Li, C., Goncharov, A., Becker, H., Bosch, D., Montanini, A. (2020) - Highly siderophile and chalcophile element behaviour in abyssal-type and supra-subduction zone mantle: new insights from the New Caledonia ophiolite. Lithos, 354-355,https://doi.org/10.1016/j.lithos.2019.105338

Secchiari, A., Montanini, A., Bosch, D., Macera, P., Cluzel, D. (2019) - Origin of the spinel-pyroxene symplectites in the harzburgites from the New Caledonia Peridotite. Ofioliti 44, 31-42

Secchiari, A., Montanini, A., Bosch, D., Macera, P., Cluzel, D. (2018) - The contrasting geochemical message from the New Caledonia gabbronorites: insights on depletion and contamination processes of the sub-arc mantle in a nascent arc setting. Contributions to Mineralogy and Petrology, 173, 66-. DOI: 10.1007/s00410-018-1496-8

Lo Po', D., Braga, R., Massonne, H.J., Molli, G., Montanini, A., Bargossi, G. (2018) - High‐pressure tectono‐metamorphic evolution of mylonites from the Variscan basement of the Northern Apennines, Italy. J. Metam. Geol., doi:10.1111/jmg.12281

Secchiari, A., Montanini, A., Bosch, D., Macera, P., Cluzel, D. (2016) - Melt extraction and enrichment processes in the New Caledonia lherzolites: evidence from geochemical and Sr-Nd isotope data. Lithos 260, 28-43, doi: 10.1016/j.lithos.2016.04.030

Lo Po, D., Braga, R.,Massonne, H.C., Molli, G., Montanini, A., Theye, T. (2016) - Fluid-induced breakdown of monazite in medium-grade metasedimentary rocks of the Pontremoli basement (Northern Apennines, Italy)", Journal of Metamorphic Geology, 34: 63-84, doi: 10.1111/jmg.12171

Montanini, A., Tribuzio, R. (2015) - Evolution of recycled crust within the mantle: constraints from the garnet pyroxenites of the External Ligurian ophiolites, N Apennine, Italy. Geology 43: 911-914, doi: 10.1130/G36877.1

Beltrando, M., Zibra, I., Montanini, A., Tribuzio, R. (2013) - Crustal thinning and exhumation along a fossil magma-poor distal margin preserved in Corsica: a hot rift to drift transition? Lithos 168-169: 99-112, https://doi.org/10.1016/j.lithos.2013.01.017.

Montanini, A., Tribuzio, R., Thirlwall, M. (2012) - Garnet clinopyroxenite layers from the mantle sequences of the Northern Apennine ophiolites (Italy): evidence for recycling of crustal material. Earth and Planetary Science Letters 351-352: 171-181, http://dx.doi.org/10.1016/j.epsl.2012.07.033

Montanini A., Tribuzio R., Bersani D. (2010) - Insights into the origin of mantle graphite and sulphides in garnet pyroxenites from the External Liguride peridotites (Northern Apennine, Italy), in: (M. Coltorti, H. Downes, M. Gregoire, O' Reilly S.Y. eds.) "Petrological evolution of the European Lithospheric Mantle", Geological Society of London Special Publication 337, p.87- 105, https://doi.org/10.1144/SP337.5

Montanini A., Tribuzio R., Vernia L. (2008) - Petrogenesis of basalts and gabbros from an ancient continent-ocean transition (External Liguride ophiolites, Northern Italy). Lithos 101, 453- 479, https://doi.org/10.1016/j.lithos.2007.09.007

Montanini A., Tribuzio R., Anczkiewicz R. (2006) - Exhumation history of a garnet pyroxenite-bearing mantle section from a continent-ocean transition(Northern Apennine ophiolites, Italy). Journal of Petrology 47, 1943- 1971, https://doi.org/10.1093/petrology/egl032

Montanini A., Harlov D. (2006) - Petrology and mineralogy of granulite-facies mafic xenoliths (Sardinia, Italy): evidence for KCl metasomatism in the lower crust. Lithos 92, 588-608, https://doi.org/10.1016/j.lithos.2006.03.053.

Montanini A., Tribuzio, R. (2001) - Gabbro-derived and felsic granulites from the Northern Apennines (Italy): evidence for emplacement of tholeiitic basalts in the post-Variscan lower crust. Journal of Petrology 42, 2259- 2277, https://doi.org/10.1093/petrology/42.12.2259.

 

 

 

Gruppi di ricerca

Progetti di ricerca

Campusnet SCVSA   |   Versione Mobile
Non cliccare qui!