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Dr. Alexander Gysi


(See Curriculum Vitae for more details)

  1. Payne* M., Gysi A.P., Hurtig N.C. (2023) Hydrothermal fluorite solubility experiments and mobility of REE in acidic to alkaline solutions from 100 to 250 °C. Chemical Geology 617, 121256.
  2. Chappell* J.C., Gysi A.P., Monecke T., Chang Z. (2023) Experimental apatite-fluid interaction and partitioning of rare earth elements at 150 and 250 °C. American Mineralogist 108, 1409--1420
  3. Pauly* C., Gysi A.P., Pfaff K., Merkel I. (2021) Beryl as indicator of metasomatic processes in the California Blue Mine topaz-beryl pegmatite and associated miarolitic pockets. Lithos 404-405, 106485.
  4. Gysi, A. P., Harlov, D. E. (2021). Hydrothermal solubility of TbPO4, HoPO4, TmPO4, and LuPO4 xenotime endmembers at pH of 2 and temperatures between 100 and 250 °C. Chemical Geology 567, 120072.
  5. Perry*, E., Gysi, A. P. (2020). Hydrothermal calcite-fluid REE partitioning experiments at 200 °C and saturated water vapor pressure. Geochimica et Cosmochimica Acta, 286, 177–197.
  6. Van Hoozen*, C. J., Gysi, A. P., Harlov, D. E. (2020). The solubility of monazite (LaPO4, PrPO4, NdPO4, and EuPO4) endmembers in aqueous solutions from 100 to 250 °C. Geochimica et Cosmochimica Acta, 280, 302–316.
  7. Gysi, A. P., Mei, Y., Driesner, T. (2020). Advances in numerical simulations of hydrothermal ore forming processes. Geofluids, (open access).
  8. Alford*, L. Gysi, A. P., Hurtig, N. C., Monecke, T., Pfaff, K. (2020). Porphyry-related polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element chemistry. Ore Geology Reviews 119, 103295.
  9. Gysi, A. P., Harlov, D., Miron, G. D. (2018). The solubility of monazite (CePO4), SmPO4, and GdPO4 in aqueous solutions from 100 to 250 °C. Geochimica et Cosmochimica Acta, 242, 143–164.
  10. Perry*, E., Gysi, A.P. (2018) Rare earth elements in mineral deposits: speciation in hydrothermal fluids and partitioning in calcite. Geofluids, (open access).
  11. Pierre* S., Gysi A.P., Monecke, T. (2018) Fluid chemistry of mid-ocean ridge hydrothermal vents: A comparison between numerical modeling and vent geochemical data. Geofluids, 389379 (open access).
  12. Perry* E., Gysi A.P. (2018) Rare Earth Elements in Mineral Deposits: Speciation in Hydrothermal Fluids and Partitioning in Calcite. Geofluids. (open access)
  13. Gysi, A.P. (2017) Numerical simulations of CO2 sequestration in basaltic rock formations: challenges for optimizing mineral-fluid reactions. Pure and Applied Chemistry,
  14. 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.
  15. 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.
  16. 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.
  17. Gysi, A.P., Williams-Jones, A.E., 2015, The thermodynamic properties of bastnaesite-(Ce) and parisite-(Ce). Chemical Geology, 21, 87-101.
  18. 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.
  19. 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.
  20. Gysi, A.P., Stefánsson A., 2012, Experiments and geochemical modeling of CO2 sequestration during hydrothermal basalt alteration. Chemical Geology, 306-307, 10-28.
  21. 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.
  22. 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.
  23. 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.
  24. Gysi, A.P., Stefánsson A., 2008, Numerical modeling of CO2-water-basalt interaction. Mineralogical Magazine, 72, 55-59.

(*Students advised)