Geothermometry and water–rock interaction modelling at Hafralækur. Possible implications of temperature and CO2 on hydrogeochemical changes previously linked to earthquakes in northern Iceland

• Published in: Geothermics
• Main Authors: Boschetti T., Barbieri M., Barberio M. D., Skelton A., Stockmann G., Toscani L.
• Other Authors: Boschetti, T., Barbieri, M., Barberio, M. D., Skelton, A., Stockmann, G., Toscani, L.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier Ltd 2022
• Subjects: alkalinity; earthquake; groundwater; isotope; silica; sodium alloy; zeolites; Hafralækur; Iceland
• Online Access: https://hdl.handle.net/11573/1660849; https://doi.org/10.1016/j.geothermics.2022.102535

The low enthalpy (T < 150 °C) groundwater in the HA01 borehole at Hafralækur has a long time series (2008–2018) of chemical and isotopic data. In the previous studies, the variations in chemical and isotope parameters were statistically related to seismic activity. However, the possible effect of...