| Issue |
E3S Web Conf.
Volume 98, 2019
16th International Symposium on Water-Rock Interaction (WRI-16) and 13th International Symposium on Applied Isotope Geochemistry (1st IAGC International Conference)
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|---|---|---|
| Article Number | 07023 | |
| Number of page(s) | 5 | |
| Section | Geochemistry of Natural Waters: From Atmospheric Precipitations to Deep Brines | |
| DOI | https://doi.org/10.1051/e3sconf/20199807023 | |
| Published online | 07 June 2019 | |
The origin of the warm groundwater near Lake Mývatn, NE Iceland, traced by stable isotopes
Iceland GeoSurvey (ÍSOR), Grensásvegur 9, 108 Reykjavík, Iceland
* Corresponding author: finnbogi.oskarsson@isor.is
The origin of the warm groundwater which feeds Lake Mývatn is unknown, but it has been affected by volcanic episodes as well as geothermal activity and utilisation. In this contribution stable isotopes of hydrogen (2H), oxygen (18O), sulphur (34S), chlorine (37Cl) and strontium (86Sr and 87Sr) in 20 groundwater and effluent samples from the Lake Mývatn area are used to constrain the origin of the warm groundwater. The results suggest that the warm groundwater is partly formed by mixing with geothermal effluent water and partly by mixing with geothermal steam.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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