Articles | Volume 54
https://doi.org/10.5194/adgeo-54-15-2020
https://doi.org/10.5194/adgeo-54-15-2020
22 Sep 2020
 | 22 Sep 2020

Origin and Evolution of Gas in Salt Beds of a Potash Mine

Martin Zimmer, Bettina Strauch, Axel Zirkler, Samuel Niedermann, and Andrea Vieth-Hillebrand

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Latest update: 28 Mar 2024
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Short summary
In order to better understand both the fixation and migration of gases in evaporites, investigations were performed in five horizontal boreholes drilled in an underground potash seam. According to the He-isotopes, a small contribution of mantle gas can be found in the geogenic salt gas. We assume that CO2 and CH4 are related to volcanic activity, where they isotopically equilibrated at temperatures of 513 °C to 519 °C about 15 to 16 Ma ago.