2026-08-09T10:09:09Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:78812026-06-10T10:26:05ZDOIDBDOIDB.GFZ

false4DOIDB.GFZ 10.5880/GFZ.3.1.2024.002 Zimmer, Martin Martin Zimmer 0000-0002-8848-2336 GFZ German Research Centre for Geosciences, Potsdam, Germany Strauch, Bettina Bettina Strauch 0000-0002-3648-1032 GFZ German Research Centre for Geosciences, Potsdam, Germany Niedermann, Samuel Samuel Niedermann 0000-0003-1626-5284 GFZ German Research Centre for Geosciences, Potsdam, Germany Ayzit, Tolga Tolga Ayzit 0000-0001-5710-0713 Izmir Institute of Technology, Department of International Water Resources, İzmir, Türkiye Tonkul, Serhat Serhat Tonkul 0000-0002-8572-1565 Izmir Institute of Technology, Department of Environmental Engineering, İzmir, Türkiye Demir, Mustafa Muammer Mustafa Muammer Demir Izmir Institute of Technology, Department of Material Science and Engineering, İzmir, Türkiye Baba, Alper Alper Baba 0000-0001-5307-3156 Izmir Institute of Technology, Department of International Water Resources, İzmir, Türkiye GFZ Data Services 2024 Gas Geochemistry Lab (GFZ German Research Centre for Geosciences, Germany) GFZ German Research Centre for Geosciences, Potsdam, Germany Zimmer, Martin GFZ German Research Centre for Geosciences,Potsdam, Germany Dataset https://izka.org.tr/wp-content/uploads/2022/03/jeotermal.pdf 10.1016/j.geothermics.2013.08.003 https://doi.org/10.1144/SP453.7 10.1016/j.earscirev.2010.05.005 10.1016/S0016-7037(97)00102-6 10.1016/S0377-0273(03)00149-5 https://journals.tubitak.gov.tr/earth/vol17/iss3/8/ CC BY 4.0 To enhance the EU's economic autonomy, feasible options for local sourcing of critical raw materials that would allow for shorter supply routes along with ethical and responsible value chains are under contemplation. Social acceptance of mining in Europe is, however, low, and the establishment of new mining sites faces strong public opposition. Therefore, innovative solutions for the production of primary raw materials need to be developed. A new idea for raw material extraction is the extraction of essential elements from geothermal fluids.

Deep geothermal fluids, increasingly used for energy production, often contain high concen-trations of dissolved ions and gases in commercially interesting concentrations. The EU-funded project CRM-geothermal aims to develop new technologies to extract these highly relevant elements, including helium, during geothermal production cycles. In this way, an environmentally friendly and socially acceptable exploration and exploitation method could be deployed.

One aim of the CRM-geothermal project is to gain an overview of the actual quantities of critical raw materials in various geothermal fluids in Europe by taking and analyzing fluid samples. In Turkey for instance, classical high enthalpy (volcanic) systems exist, which are representative for many geothermal areas worldwide. The sites are located at the edges of tectonic plates and close to areas undergoing volcanic activity. The brines are mixed with seawater and circulate in the deeper crust.

The data publication contains analyses results of three gas samples from Tuzla, two samples from Seferihisar geothermal power plant and one sample from the Dikili geothermal field in Turkey, taken in 2023 as part of the CRM-geothermal project.

Horizon 2020 http://dx.doi.org/10.13039/501100007601 101058163 CRM geothermal