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Dr. Alexander Gysi

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Dr. Alexander Gysi

Alexander Gysi

  • Ph.D., Geochemistry, University of Iceland, Iceland, 2011
  • M.Sc., Mineralogy and Petrology, ETH Zurich, Switzerland, 2007

Research Interests

  • Lithogeochemistry of hydrothermal ore deposits.
  • Thermodynamics of fluid-mineral equilibria.
  • Experiments and numerical modeling of hydrothermal fluid-rock interaction.
  • Geochemistry of rare earth elements and other critical metals.
  • Evolution of pegmatites and alkaline/peralkaline magmatic-hydrothermal systems.
  • CO2 sequestration in geological rock formations.


  • GEGN 206: Earth Materials
  • GEGN 330: Thermodynamics for Geoscientists
  • GEOL 535: Lithogeochemistry of Ore Forming Processes

Selected Publications

  • Gysi, A.P., Williams-Jones, A.E., Collins, P., 2016, Lithogeochemical vectors for hydrothermal processes in the Strange Lake peralkaline granitic REE-Zr-Nb deposit. Economic Geology, 111, 1241-1276.
  • Gysi, A.P., Harlov, D., Costa Filho, D., Williams-Jones, A.E., 2016, Experimental determination of the high temperature heat capacity of a natural xenotime-(Y) solid solution and synthetic DyPO4 and ErPO4 endmembers. Thermochimica Acta, 627-629, 61-67.
  • Gysi, A.P., Williams-Jones, A.E., Harlov, D., 2015, The solubility of xenotime-(Y) and other HREE phosphates (DyPO4, ErPO4 and YbPO4) in aqueous solutions from 100 to 250°C and psat. Chemical Geology, 401, 83-95.
  • Gysi, A.P., Williams-Jones, A.E., 2015, The thermodynamic properties of bastnaesite-(Ce) and parisite-(Ce). Chemical Geology, 21, 87-101.
  • Gysi, A.P., Williams-Jones A.E., 2013, Hydrothermal mobilization of pegmatite-hosted Zr and REE at Strange Lake, Canada: A reaction path model. Geochimica et Cosmochimica Acta, 122, 324-352.
  • Gysi, A.P., Stefánsson A., 2012, CO2-water-basalt interaction. Low temperature experiments and implications for CO2 sequestration into basalts. Geochimica et Cosmochimica Acta, 81, 129-152.
  • Gysi, A.P., Stefánsson A., 2012, Experiments and geochemical modeling of CO2 sequestration during hydrothermal basalt alteration. Chemical Geology, 306-307, 10-28.
  • Gysi, A.P., Stefánsson A., 2012, Mineralogical aspects of CO2 sequestration during hydrothermal basalt alteration – An experimental study at 75 to 250 °C and elevated pCO2. Chemical Geology, 306-307, 146-159.
  • Gysi, A.P., Stefánsson A., 2011, CO2-water-basalt interaction. Numerical simulation of low temperature CO2 sequestration into basalts. Geochimica et Cosmochimica Acta, 75, 4728-4751.
  • Gysi, A.P., Jagoutz, O., Schmidt, M.W., Targuisti, K., 2011, Petrogenesis of pyroxenites and melt infiltrations in the ultramafic complex of Beni Bousera, northern Morocco. Journal of Petrology, 22, 1679-1735.
  • Gysi, A.P., Stefánsson A., 2008, Numerical modeling of CO2-water-basalt interaction. Mineralogical Magazine, 72, 55-59.

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