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Dr. Alexander Gysi

Publications

(See Curriculum Vitae for more details)

  1. 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. https://doi.org/10.1016/j.lithos.2021.106485
  2. 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. https://doi.org/10.1016/j.chemgeo.2021.120072
  3. 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. https://doi.org/10.1016/j.gca.2020.07.018
  4. 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. https://doi.org/10.1016/j.gca.2020.04.019
  5. Gysi, A. P., Mei, Y., Driesner, T. (2020). Advances in numerical simulations of hydrothermal ore forming processes. Geofluids, (open access). https://doi.org/10.1155/2020/7649713
  6. 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.
  7. 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.
  8. Perry*, E., Gysi, A.P. (2018) Rare earth elements in mineral deposits: speciation in hydrothermal fluids and partitioning in calcite. Geofluids, (open access). https://doi.org/10.1155/2018/5382480
  9. 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). https://doi.org/10.1155/2018/1389379
  10. Perry* E., Gysi A.P. (2018) Rare Earth Elements in Mineral Deposits: Speciation in Hydrothermal Fluids and Partitioning in Calcite. Geofluids. https://doi.org/10.1155/2018/5382480 (open access)
  11. Gysi, A.P. (2017) Numerical simulations of CO2 sequestration in basaltic rock formations: challenges for optimizing mineral-fluid reactions. Pure and Applied Chemistry, https://doi.org/10.1515/pac-2016-1016
  12. 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. http://dx.doi.org/10.2113/econgeo.111.5.1241
  13. 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. http://dx.doi.org/10.1016/j.tca.2016.01.016
  14. 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. http://dx.doi.org/10.1016/j.chemgeo.2015.02.023
  15. Gysi, A.P., Williams-Jones, A.E., 2015, The thermodynamic properties of bastnaesite-(Ce) and parisite-(Ce). Chemical Geology, 21, 87-101. http://dx.doi.org/10.1016/j.chemgeo.2014.11.001
  16. 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. https://doi.org/10.1016/j.gca.2013.08.031
  17. 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. http://dx.doi.org/10.1016/j.gca.2011.12.012
  18. Gysi, A.P., Stefánsson A., 2012, Experiments and geochemical modeling of CO2 sequestration during hydrothermal basalt alteration. Chemical Geology, 306-307, 10-28. http://dx.doi.org/10.1016/j.chemgeo.2012.02.016
  19. 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. http://dx.doi.org/10.1016/j.chemgeo.2012.03.006
  20. 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. http://dx.doi.org/10.1016/j.gca.2011.05.037
  21. 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. https://doi.org/10.1093/petrology/egr026
  22. Gysi, A.P., Stefánsson A., 2008, Numerical modeling of CO2-water-basalt interaction. Mineralogical Magazine, 72, 55-59. https://doi.org/10.1180/minmag.2008.072.1.55

(*Students advised)