Deliverable D1.3 presents the CRM-geothermal Fluid Atlas, an interactive, GIS-based online platform that visualises and integrates geospatial and geochemical data related to geothermal fluids and associated critical raw materials (CRMs) across Europe and Eastern Africa. The Atlas represents the third major outcome of Work Package 1, building directly upon the data harmonisation (D1.1) (Seres et al. 2024) and database publication (D1.2) (Seres et al. 2025). It transforms the harmonised datasets of the CRM-geothermal database into a spatially oriented, user-friendly tool that enables exploration, comparison, and interpretation of CRM-relevant geothermal data in a geoscientific context. The Atlas combines legacy data from literature and previous projects with newly generated datasets obtained during CRM-geothermal field campaigns and laboratory analyses. It provides an integrated visualisation of geochemical, geological, and geothermal information across regions of strategic interest for CRM recovery and geothermal development. The CRM-geothermal Fluid Atlas integrates and visualises multiple data layers, including site locations, geothermal wells, fluid samples, rock and scale compositions, and selected CRM concentrations. Each data point on the map is linked to its corresponding metadata record and DOI, enabling users to trace data provenance, citation, and licensing information. The platform’s interactive functionalities allow users to filter, query, and export data by parameter, site, country, or CRM element, supporting both scientific analysis and strategic decision-making. Technically, the Fluid Atlas is implemented as a web-based GIS application, developed with open-source tools and interoperable standards. The system architecture combines a PostgreSQL/PostGIS spatial database with a web interface that connects directly to the CRM-geothermal data repository. This ensures continuous synchronisation of updates from the main database, so that newly added datasets and metadata become immediately visible in the online Atlas. Geographically, the Fluid Atlas covers key geothermal provinces in Europe and Eastern Africa, including Türkiye, Iceland, Italy, Germany, and the East African Rift region (Kenya, Tanzania, Ethiopia). The inclusion of these regions allows comparative analysis of geothermal systems in different geological and tectonic settings, contributing to a broader understanding of the distribution and enrichment of critical raw materials in geothermal environments. The online platform is publicly accessible at https://crmgeothermal.iit.uni-miskolc.hu and supports multiple user roles: · Public users can search, visualize and export datasets. · Registered Users can additionally upload and edit data but may edit only their own uploads. · Administrators have full privileges on all data and can approve or remove user registrations By providing a single, interactive gateway to high-quality CRM-geothermal data, the Fluid Atlas contributes to open science, data-driven innovation, and sustainable resource management. It enhances the visibility and impact of project results and ensures the long-term availability of data beyond the lifetime of the project through integration with European geological data infrastructures.
Seres et al. (Fri,) studied this question.