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Dr. Alexander Gysi

Dr. Alexander Gysi
Economic Geologist/Associate Professor
New Mexico Bureau of Geology & Mineral Resources
New Mexico Institute of Mining & Technology
801 Leroy Place
Socorro NM 87801-4796
(575) 835-6333 fax

I currently have a dual appointment as an Economic Geologist in the NMBGMR and Associate Professor in the department of Earth & Environmental Science. I am the head of the Ore Deposits and Critical Minerals experimental laboratory (ODCM Lab) and research group in the bureau and maintain the MINES thermodynamic database for simulating ore-forming processes and fluid-rock interaction. My background includes international research and work within academia and in collaboration with the industry in the topics of petrology and mineralogy, aqueous geochemistry, and economic geology.

As an Economic Geologist in the bureau, my goal is to provide the state of New Mexico with the tools necessary to advance our assessment capabilities for the responsible exploration and mining of mineral resources. I also aim at providing educational platforms for the community to help making informed decisions about mineralogy, mineral resources and learn about the geology of ore deposits in New Mexico.

My research is currently funded through several National Science Foundation (NSF) and Department of Energy (DOE) grants and focuses on the geochemistry and mineralogy of ore-forming processes associated to hydrothermal-magmatic systems, particularly those hosting critical mineral deposits. The critical metals such as the rare earth elements (REE) are important resources used for the production of alternative energy efficient green technologies. My research group uses a holistic approach to study ore deposits including field observations, numerical modeling, and laboratory experiments. In the ODCM Experimental lab we are able to simulate fluid-rock reaction processes using hydrothermal reactors and measure the thermodynamic properties of REE and other critical metals in aqueous fluids and minerals using calorimetric instruments. Currently, we are also expanding our capabilities to conduct in situ measurements in high pressure-temperature supercritical fluids via hydrothermal diamond anvil cell (HDAC) and a new NSF MRI funded Raman laser facility in the bureau. We are also currently conducting field work with my MS students on (per)alkaline/carbonatite REE mineral deposits in New Mexico with particular interest in the Gallinas Mountains and Lemitar Mountains.

(See Curriculum Vitae)


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

Professional Experience

  • 2020-present: Economic Geologist, Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology.
  • 2023-present: Assiociate Professor, Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology.
  • 2020-2023: Assistant Professor, Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology.
  • 2014-2020: Assistant Professor in Lithogeochemistry, Department of Geology and Geological Engineering,
    Colorado School of Mines, Golden, Colorado.
  • 2011-2014: Postdoctoral Fellow, Department of Earth and Planetary Science, McGill University.


  • 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, carbonatites and alkaline/peralkaline magmatic-hydrothermal systems.