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CRM-geothermal Database: Geoscientific and Geochemical Data on Geothermal Systems, with Emphasis on Fluids and Critical Raw Materials in Europe and Eastern Africa

The CRM-geothermal database was created within the Horizon Europe CRM-geothermal project (Grant Agreement No. 101058163) to support the assessment of geothermal systems as sources of both renewable energy and critical raw materials (CRMs). The primary purpose of data collection was to compile, harmonise, and make openly available geoscientific and geochemical data relevant to the occurrence, enrichment, and potential co-production of CRMs from geothermal environments in Europe and East Africa. The database integrates legacy data compiled from peer-reviewed literature, national geological and geothermal databases, and previous European research projects (notably REFLECT), together with new data generated by project partners through field sampling and laboratory analyses. Sampling campaigns targeted geothermal wells and surface manifestations in selected regions, including Türkiye, the East African Rift (Kenya, Tanzania, Malawi), Cornwall (UK), and Iceland. Laboratory analyses include major ion chemistry, trace and critical element concentrations, mineralogical composition, and gas data, determined using methods such as ICP-MS, XRF, and XRD. All records were harmonised using a unified metadata schema, standardised units, and consistent reporting formats. Quality control involved automated validation routines and manual expert review. Each record includes spatial coordinates, sampling context, analytical method, references, and a quality flag indicating data origin and traceability. The database is provided as a structured Excel file and contains interconnected datasets on geothermal wells, fluids, rocks, gases, and mineral precipitates. In total, the dataset comprises 9,773 records covering a wide range of geological settings, from volcanic and metamorphic systems to sedimentary basins. The CRM-geothermal database is FAIR-aligned, openly available, and intended for reuse in geothermal research, resource assessment, and studies on the sustainable co-production of geothermal energy and critical raw materials. Method: The CRM-geothermal database was compiled using a combined approach integrating literature-based data collection, database harmonisation, and new data generation through field sampling and laboratory analysis. Legacy data were collected from peer-reviewed scientific publications, national geological and geothermal databases, technical reports, and previous European research projects, with a particular emphasis on the REFLECT project. Relevant parameters were manually extracted, digitised where necessary, and cross-checked against original sources to ensure consistency and traceability. New data were generated within the CRM-geothermal project through targeted sampling campaigns at selected geothermal sites in Europe and Eastern Africa. Samples of geothermal fluids, rocks, gases, and mineral precipitates were collected from wells and surface manifestations following standard geochemical sampling protocols. Laboratory analyses were performed by project partner institutions using established analytical techniques, including inductively coupled plasma mass spectrometry (ICP-MS) for trace and critical elements, X-ray fluorescence (XRF) for bulk chemical composition, and X-ray diffraction (XRD) for mineralogical characterisation. Gas compositions were determined using gas chromatography and noble gas mass spectrometry where applicable. Detection limits and analytical uncertainties follow laboratory-specific standards and are documented where available. All data were harmonised using a unified metadata schema. Units, parameter names, and reporting formats were standardised, and spatial information was converted to WGS 84 decimal degrees. Quality control was applied through automated validation scripts checking metadata completeness, coordinate validity, and numerical plausibility, followed by manual expert review to ensure scientific coherence and correct sample attribution. The final dataset was organised into interconnected thematic tables (wells, fluids, rocks, gases, and scales) and exported as a structured Excel file for dissemination. Each record includes references, analytical method information, and a quality flag indicating data origin and traceability. Technical Info: The CRM-geothermal data publication is provided as a structured multi-sheet Excel (XLSX) file representing a curated snapshot of the CRM-geothermal database at the time of publication. The dataset was generated through controlled export workflows following data validation and harmonisation. The Excel file contains separate worksheets for thematic data tables (wells, fluids, rocks, gases, and mineral precipitates). Each worksheet preserves unique identifiers, standardised metadata fields, and cross-references between related records, allowing the dataset to be used independently of any external system or software platform.

Schaffung einer Obstsortensammlung mit Lokalsorten: Aepfel, Birnen, Kirschen, Pflaumen, Kastanien - Pruefung der Krankheits- und Schaedlingsempfindlichkeit dieser einheimischen Sorten

Es handelt sich um eine langfristige Arbeit. Vorgesehen ist eine Beschreibung dieser einheimischen Sorten im Form eines Spezialheftes. Bis jetzt wurden Widerstandsfaehigkeiten von Aepfelsorten gegen Schorf, sowie von Pflaumen gegen Taphrina pruni, auch Kirschen gegen Schrottschusskrankheit festgestellt.

Free neutral monosaccharides and combined monosaccharides in seawater and related saline matrices

Bulk seawater, surface microlayer, ice core and brine samples from the Arctic, the North and Tropical Atlantic and Raunefjorden were investigated on their sugar concentrations. Free neutral monosaccharides (DFCHO) and combined monosaccharides/polysaccharides (CCHO) were determined using high performance anionic exchange chromatography with pulsed amperometric detection (HPAEC-PAD) and electro-dialysis for prior desalination.

Züchtung von Birnensorten mit Resistenz gegenüber Feuerbrand (Erwinia amylovora) (FeuResBir)

Kreis Herford: Obst- und Nussbäume

Zur Freude aller darf kostenlos für den Eigenbedarf, also in haushaltsüblichen Mengen, an den in der Karte dargestellten Obst-und Nussbaum-Standorten geerntet werden. Doch Achtung: Die Ernte erfolgt auf eigene Gefahr! Verletzen oder gefährden Sie weder sich selbst, noch andere, noch die Bäume, damit alle auch im nächsten Jahr noch Freude daran haben. Bitte verwenden Sie keine Äste etc. um Obst aus den Bäumen herauszuschlagen/-werfen. Dieses entwertet einerseits Ihr Obst und beschädigt andererseits unsere Mähtechnik, wenn die Äste im Gras liegenbleiben. Respektieren Sie bitte auch eingezäunte bzw. eingefriedete Bereiche.

Weiterentwicklung der Gesamtstrategie zur Gesunderhaltung ökologisch erzeugter Birnen unter Berücksichtigung von verschiedenen indirekten und direkten Kulturmaßnahmen

Weiterentwicklung und Prüfung des beweglichen Überdachungssystems EazyTop für den geschützten Freilandanbau von Kernobst, Teilprojekt A

Weiterentwicklung und Prüfung des beweglichen Überdachungssystems EazyTop für den geschützten Freilandanbau von Kernobst, Teilprojekt B

Lead(II) biosorption experiments of the fungus Penicillium citrinum under geothermal conditions

This dataset is the result of an experimental series that was carried out in September/October 2022 at GFZ German Research Centre for Geosciences, Potsdam, Germany to observe biosorption of lead under extreme conditions. Synthetic solutions, simulating the geothermal fluids from the Heemskerk geothermal power plant were were prepared in 30 ml glass vials (Rotalibo screw neck ND24 EPA). To prepare the stock solutions, sodium chloride (NaCl, 99.8 %, Cellpure, Merck, DE) was added at 265 g/L and Pb(II), in form of lead nitrate (Pb(NO3 )2 , Merck, DE), at 1 g/L to ultrapure water. To assess the impact of acetic acid on lead biosorption, two treatments were done: one without acetic acid and one where acetic acid (100 %, Merck, DE) was added at 60 mg/L. Finally, dead biomass of the fungus Penicillium citrinum was added in the samples at a concentration of 4 g/L (Wahab et al., 2017). The samples were incubated in an autoclave at a pressure of 8 bars on a rotative shaker. The temperature was set at 25 °C, 60 °C or 98 °C with three contact times (1, 2 and 3 h). All treatments were performed in triplicates. For each treatment, two controls without biomass were done. Control samples without the addition of NaCl were done in duplicate, at 25 °C and for 2 h. After incubation, samples were filtered through a 0.22 µm nitrocellulose filter (Sartorius Stedim Biotech, FR) to separate the biomass from the liquid. The biomass on the filters was dried for 24 h at 45 °C before being scraped from the filter and kept in a Falcon tube at room temperature.

Dissolved organic compounds in geothermal fluids used for energy production – part II

This dataset comprises 47 fluid samples from 11 geothermal sites (Germany, Austria, Iceland, Turkey, Netherlands, Belgium, French West Indies). The samples were collected within the REFLECT project (Redefining geothermal properties at extreme conditions to optimize future geothermal energy extraction). The focus with these analyses were on the organic compound composition of the fluids, since they are rarely included in the analyses of fluids taken from geothermal power plants. Understanding the organic compound composition of geothermal fluids might help to better understand chemical reactions within the fluids and might help to mitigate problems that arise with the operation of a geothermal power plant such as mineral precipitation (scaling) and corrosion of the casing and pipes.

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