Professor Nadeau obtained his PhD in Earth Sciences from McGill University, Canada, in 2011, working on the active magmatic-hydrothermal and volcanic system of Merapi Volcano, Indonesia. The study of active hydrothermal systems turned out to be a very interesting approach for the study of mineralized, but extinct hydrothermal systems. Subsequent Post-doctoral work in the UQAM-Geotop research center, Canada, thus targetted at improving our understanding of alkaline-carbonatite magmatic-hydrothermal complexes and related REE-Nb mineralization, using trace element as well as C-O-Sr-Nd isotopic systems. Nadeau simultaneously started conducting research on multiple Archean intrusion related and orogenic Au deposits of the Superior Craton, Canada, and on an IOCG prospect from the Labrador Trough, Canada. During his time as a professor at the University of Ottawa, Nadeau’s group was focussed on Archean gold of the Superior Province, Canada, and developed the use of lithium isotopes in the study of hydrothermal alteration, by looking at a variety of different world-class gold deposits in Canada. The work on lithium isotopes led to the investigation of hydrothermal clay minerals (e.g., chlorite, sericite) as adsorption traps for colloidal gold transport, and to the development of potassium isotopes in the study of hydrothermal alteration.

Representative Publications:

Nadeau, O., Zelt, C., Leybourne, M.I., Voinot, A., 2021. Evolution of Archean Sanukitoids from the Otto Stock by Magma Mixing and Na-K Metasomatism: Evidence from Petrological Observations and Lithium Isotope Geochemistry. Journal of Petrology 62 (12), 1-29

Nadeau, O., Voinot, A., Leybourne, M.I., 2021. Lithium Isotopes at Gold Deposits: Insights from the Giant Kirkland Lake Gold Deposit, Canada. Precambrian Research 362, 106308

Nadeau, O., Mick, E., Robidoux, P., Grassa, F., Brusca, L., Voinot, A., Leybourne, M.I., 2021. Lithium Isotopes and Cu-Au Concentrations in Hydrothermal Alterations from Solfatara Volcano, Campi Flegrei Caldera Complex, and La Fossa volcano, Vulcano Island, Italy: Insights into Epithermal Ore Forming Environments. Ore Geology Reviews 130, 103934

Nadeau, O., Harris, J., 2019. Remobilization and Adsorption of Colloidal Gold on Nano-Particulate Chlorite at the Hardrock Archean Orogenic Gold Deposits: A New Tool for Gold Exploration. Journal of Geochemical Exploration. https://doi.org/10.1016/j.gexplo.2019.05.004

[Invited] Nadeau, O., Allard, P., Humaida, H. (Under review, Springer book on Merapi Volcano; chapter on volcanic gases). Merapi Volcano: From Magmatic Volatiles to Volcanic Gases

Nadeau, O., 2019. Metallogenesis of Archean Hydrothermal Intrusion-Related Gold Deposits of Abitibi: Insights from Duquesne, Dolodau, Lac Shortt and Canadian Malartic Gold Deposits. Ore Geology Reviews, DOI102975

Nadeau, O, Stevenson, R., Jébrak, M., 2018. Interaction of mantle magmas and fluids with crustal fluids at the 1894 Ma Montviel alkaline-carbonatite complex, Canada: Insights from metasomatic and hydrothermal carbonates. Lithos 296-299, 563-579

Nadeau, O., Stix, J., Williams-Jones, A.E., 2016. Links between arc volcanoes and porphyry-epithermal ore deposits. Geology 44, 11-14

Nadeau, O., Stevenson, R., Jébrak, M., 2016. Evolution of Montviel Alkaline-Carbonatite Complex by Coupled Fractional Crystallization, Fluid Mixing and Metasomatism – Part I: Petrography and Geochemistry of Metasomatic Aegirine-augite and Biotite: Implications for REE-Nb mineralization. Ore Geology Reviews 72, 1143-1162

Nadeau, O., Stevenson, R., Jébrak, M., 2016. Evolution of Montviel Alkaline-Carbonatite Complex by Coupled Fractional Crystallization, Fluid Mixing and Metasomatism – Part II: Trace Element and Sm-Nd Isotope Geochemistry of Metasomatic Rocks: Implications for REE-Nb mineralization. Ore Geology Reviews 72, 1163-1173

Nadeau, O., 2015. Ore metals beneath volcanoes. Nature Geoscience 8, 168-170

Nadeau, O., Cayer, A., Pelletier, M., Stevenson, R., Jébrak, M., 2015. The Paleoproterozoic Montviel Carbonatite-Hosted REE-Nb Deposit, Abitibi, Canada: Geology, Mineralogy, Geochemistry and Genesis. Ore Geology Reviews 67, 314-335

Nadeau, O., Stevenson, R., Jébrak, M., 2014. The Archean magmatic-hydrothermal system of Lac Shortt (Au-REE), Abitibi, Canada: Insights from carbonate fingerprinting. Chemical Geology 387, 144-156

Nadeau, O., Williams-Jones, A. E., Stix, J., 2013. Magmatic-Hydrothermal Evolution and Devolatilization beneath Merapi Volcano, Indonesia. Journal of Volcanology and Geothermal

Research 261, 50-68

Nadeau, O., Stix, J., Williams-Jones, A.E. 2013. The Behaviour of Copper, Zinc and Lead during Magmatic Evolution at Merapi Volcano, Indonesia. Chemical Geology 342, 167-179

Nadeau, O., Williams-Jones, A. E., Stix, J., 2010. Sulfide Melts as a Source of Metals in Arc-Related Magmatic Hydrothermal Ore Fluids. Nature Geoscience 3, 501-505

• [1] 2004.9 -- 2011.10

  McGill University       Earth Sciences       博士研究生       理学博士学位

• [2] 2001.9 -- 2004.5

  Université du Québec à Montréal       Resource Geology       B.Sc.       B.Sc.

• [1] 2019.10 -- 至今

  China University of Geosciences (Wuhan)      School of Earth Resources      Associate Professor

• [2] 2014.9 -- 2019.8

  University of Ottawa      Department of Earth and Environmental Sciences      Assistant Professor

• [3] 2014.6 -- 2014.8

  Geological Survey of Canada      Research Scientist

• [4] 2011.9 -- 2014.5

  Université du Québec à Montréal - Geotop      Department of Earth and Atmospheric Sciences      Post-doctoral research

• [1] The role of liquid immiscibility in the evolution of melts and fluids, and the genesis of metallic ore deposits. More specifically, the role of sulfide melt in the genesis of porphyry-type systems, the role of carbonatite and BaClF melts in the genesis of carbonatite-related deposits and the existen
• [2] Development of non-traditional isotope systems (e.g., Li, K, clumped C-O isotopes) in the study of the genesis of hydrothermal deposits, the related metasomatism, and with applications for mineral exploration.
• [3] Study of active metamorphic-hydrothermal systems (e.g., active faults and hot springs; geothermal) and extinct but mineralized equivalents (orogenic and lode gold deposits) in China (Shandong) and Canada (Abitibi).
• [4] Study of active magmatic-hydrothermal systems (e.g., volcanoes) and extinct but mineralized equivalents (e.g., porphyry/epithermal Cu-Au deposits) in China (e.g., Dexing porphyry) and Canada (Archean intrusion-related gold).

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