Dissolved organic compounds in geothermal fluids used for energy production

Leins, Alessio | Vieth-Hillebrand, Andrea | Bregnard, Danaé | Günther, Kristin | Junier, Pilar | Regenspurg, Simona

2022

This data was collected to write an extensive review on organic compounds in geothermal fluids as part of the REFLECT (Redefining geothermal fluid properties at extreme conditions to optimize future geothermal energy extraction). The data is mainly focussed on geothermal sites were organic...

2D grain size data of sandstones from the 3.2 Ga old Moodies Group, Barberton Greenstone Belt (South Africa)

Reimann, Sebastian | Zametzer, Andreas | Heubeck, Christoph

2023

The Moodies Group (ca. 3.22-3.21 Ga) of the Barberton Greenstone Belt (BGB), South Africa, is the uppermost and youngest unit of the BGB, the largest and best-preserved Greenstone belt in the basement of the Kaapvaal Craton. It consists predominantly of fine- to coarse-grained, composi-tionally...

Sample information, major element stream chemistry, inversion model setup and results, sample corrections for precipitation and degassing, and CO2 exchange calculations

Erlanger, Erica | Bufe, Aaron | Paris, Guillaume | D'Angeli, Ilenia | Pisani, Luca | Cosslett Kemeny, Preston | Stammeier, Jessica | Haghipour, Negar | Hovius, Niels

2024

Tables that include information and calculations associated with water samples collected from rivers in Central Italy. The goal of the project was to determine the carbon budget for the Central Apennine Mountains of Italy, by accounting for weathering reactions that are responsible for either...

Survey of critical raw materials in Tanzania East African Rift geothermal araes

Wilke, Franziska D. H. | Mahecho, Albano | Regenspurg, Simona | Zimmer, Martin | Jentsch, Anna | Kreitsmann, Timmu | Bau, Michael | Schröder, Birgit | Vieth-Hillebrand, Andrea | Niedermann, Samuel | Stammeier, Jessica

2024

In autumn 2022, an expedition to Tanzania was undertaken within the framework of the research project “CRM-geothermal” and Scintific Priority Program (SPP) 2238 “Dynamics of Ore Metal Enrichment”. Within „CRM-geothermal“ we are looking for an environmentally friendly co-production of critical...

CRM-geothermal - Gas chemical measurements at the Tuzla, Seferihisar and Dikili geothermal fields, Turkey

Zimmer, Martin | Strauch, Bettina | Niedermann, Samuel | Ayzit, Tolga | Tonkul, Serhat | Demir, Mustafa Muammer | Baba, Alper

2024

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...

Soil and spring water gas data from an area with natural hydrogen (H2) degassing, NW Pyrenean foreland, France

Zwaan, Frank | Pilz, Peter | Niedermann, Samuel | Zimmer, Martin | Lefeuvre, Nicolas | Petit, Valentin | Vieth-Hillebrand, Andrea | Gaucher, Eric C. | Schmidt-Hattenberger, Cornelia | Brune, Sascha

2024

This data set contains the results from a 2023 GFZ Innovative Research Expedition project to explore for natural hydrogen gas (H2) occurrences in the NW Pyrenean foreland, near the town of Biarritz in France. The data represent in-situ measurements of soil and spring water gas, as well as...

CRM-geothermal - geochemical results of drill core material, scaling and salt precipitates at Tuzla, Seferihisar and Dikili geothermal sites, Eastern Turkey

Strauch, Bettina | Wilke, Franziska D. H. | Stammeier, Jessica | Ayzit, Tolga | Tonkul, Serhat | Demir, Mustafa Muammer | Baba, Alper

2024

The EU funded project CRM-geothermal aims to establish an overview of the potential for critical raw materials (CRM) in geothermal fluids across the EU and third countries (Ref). Within this framework, the geothermal sites of Tuzla, Seferihisar and Dikili in eastern Turkey have been visited...

Acoustic Emission and Seismic moment tensor catalogs associated with triaxial stick-slip experiments performed on Westerly Granite samples

Kwiatek, Grzegorz | Goebel, Thomas

2024

The dataset contains source parameters of acoustic emission (AE) events recorded during triaxial friction (stick-slip) experiments performed on the Westerly Granite sample WgN05. In addition we provide raw waveform data of AE events recorded in triggered mode with a network of 16 AE sensors....

Comprehensive data set of in-situ hydraulic stimulation experiments for geothermal purposes at the Äspö Hard Rock Laboratory (Sweden)

Zang, Arno | Niemz, Peter | von Specht, Sebastian | Zimmermann, Günther | Milkereit, Claus | Plenkers, Katrin | Klee, Gerd

2023

This data set contains measurements of an underground hydraulic fracture experiment at Äspö Hard Rock Laboratory in May and June 2015. The experiment tested various injection schemes for rock fracture stimulation and monitored the resulting seismicity. The primary purpose of the experiment is...

Results of Experimental Simulations on Hydrogen Migration through Potential Storage Rocks

Strauch, Bettina | Pilz, Peter | Zimmer, Martin | Kujawa, Christian

2023

Data on the diffusivity of hydrogen through rocks are published here. The studied rocks are related to storage formations, namely rock salt (salt caverns), sandstone (porous aquifer) and mudstone (cap rock). To quantify hydrogen diffusion rates in these rocks, a new experimental set up was...