• WELCOME to Geysir website. We are geochemistry reseach team at University of Iceland. GEYSIR: Geochemical Evaluation of hYdrothermal Solutions and their Interaction with Rocks
    WELCOME to Geysir website. We are geochemistry reseach team at University of Iceland. GEYSIR: Geochemical Evaluation of hYdrothermal Solutions and their Interaction with Rocks
  • Group photograph on fresh Icelandic air!
    Group photograph on fresh Icelandic air!
  • Silica scaling in Geysir geothermal area
    Silica scaling in Geysir geothermal area
  • Holuhraun fissure eruption from the plane.
    Holuhraun fissure eruption from the plane.
  • Magnesite precipitation on olivine grain formed in our laboratory experiments
    Magnesite precipitation on olivine grain formed in our laboratory experiments
  • Fumarole, geothermal activity around Myvátn
    Fumarole, geothermal activity around Myvátn

Recent news more news

Electrochemistry in the field 2015-09-17 Nicole Simone Keller

The Geysir group has two visitors this week, Dr. Greg Druschel, Professor at the Indiana University - Purdue University Indianapolis (IUPUI), and Dr. Don Nuzzio, founder and president of Analytical Instrument Systems Inc. Greg and Don are collaborating with Hanna on her speciation project and iron chemistry project, and the team has been collecting samples and doing in-situ measurments using electrochemical instruments in various geothermal areas of Iceland. Greg and Don will be giving a seminar as a part of the Institute of Earth Sciences Friday Seminars Series, titled "Environmental analysis and continuous in-situ measurments using electrochemistry" on Friday 17.9.2015 in the seminar room of Askja, third floor.

Below are a few impressions from the fieldwork in Geysir:

The setup at Otherrishola, with sensors in the main spring and in the outflow.

 

Closeup of two temperature sensors recording the temperature fluctuations above microbial mats

 

Don and Greg setting the systems up

 

Hanna and Greg watching the live data recording


Welcome to our new Post-Doc! 2015-09-10 Nicole Simone Keller

Welcome to the newest GEYSIR team member, Barbara Kleine. Barbara defended her PhD at Stockholm University in the spring, and has now joined our team to study the role of fluids in contact metamorphic settings by tracking them down with the help of the stable isotopes oxygen and hydrogen. We are looking forward to working with Barbara.

Geysir research team

  • Geothermal Systems
  • Models - Experiments - Nature
  • Fluid Chemistry

Our interest is hydrothermal fluids and spans from natural systems to molecules.  We apply analytical and physical chemistry to explore frontiers in fluid geochemistry.  Our current research projects include thermodynamics of ion interaction in hydrothermal solutions, redox chemistry of natural geothermal fluids, experimental fluid-rock interaction, volatiles in geothermal and volcanic systems and interaction of geothermal waters and microbes.

Recent publications

Kaasalainen, H., Stefánsson, A., Giroud, N., Arnórsson, S. (2015) The geochemistry of trace elements in geothermal fluids, Iceland. Applied Geochemistry 62, 207-223, http://dx.doi.org/10.1016/j.apgeochem.2015.02.003.

Stefánsson, A., Gunnarsson, I., Kaasalainen, H., Arnórsson, S. (2015) Chromium geochemistry and speciation in natural waters, Iceland. Applied Geochemistry 62, 200-206, http://dx.doi.org/10.1016/j.apgeochem.2014.07.007.

complete list of publications

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