Mantle Petrology and Geochemistry

Settore ERC

Attività

Our research is focussed on the study of mantle processes (partial melting, melt-rock reaction, crustal recycling) that increase the heterogeneity of the Earth’s mantle. In this framework, sequences of fossil and modern oceanic lithosphere (Alpine and New Caledonia ophiolites along with samples from previous ODP-IODP expeditions) are currently investigated.

Prodotti della ricerca

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

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. Contrib. Mineral. Petrol., 173, 66, https://doi.org/10.1007/s00410-018-1496-8

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, https://doi.org/10.4454/ofioliti.v44i1.515

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. (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

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, 11, 2103-2125, https://doi.org/10.1016/j.gsf.2020.04.017

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

A.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, https://doi.org/10.1016/j.lithos.2020.105953

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, 46, 63-81, https://doi.org/10.4454/ofioliti.v46i1.538

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

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, ISSN: 1525-2027, doi: 10.1029/2021GC009859

Bruschini E., Carli C., Buellet A. C., Vincendon M., Capaccioni F., Ferrari M., Vetere F., Secchiari A., Perugini D., Montanini A. (2022). VNIR reflectance spectra of silicate-graphite mixtures: The effect of graphite content and particle size. ICARUS, vol. 378, 114950, doi: 10.1016/j.icarus.2022.114950.

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., in press.