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

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

doi:https://doi.org/10.5194/adgeo-54-15-2020

Articles | Volume 54

https://doi.org/10.5194/adgeo-54-15-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/adgeo-54-15-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 54

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

Data sets

Chemical and Isotopic Composition of Gas in Salt Beds of a Potash Mine Martin Zimmer, Bettina Strauch, Axel Zirkler, Samuel Niedermann, and Andrea Vieth-Hillebrand https://doi.org/10.5880/GFZ.3.1.2020.004

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.