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Geoscientific information

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  • QAFI is a database of faults with geological evidence of proven activity during the Quaternary period (the last 2.6 million years according to the limit officially established by the SQS in 2009) of the Iberian Peninsula.

  • Volcanic centres in the Portuguese offshore, located between the Mid-Atlantic Rift zone (Azores archipelago) and the continental margin.

  • Database that stores and catalogues thin sections and polished surfaces, as well as the corresponding source samples, providing a valuable resource for the scientific community.

  • The Geothermal Atlas of Mainland Portugal is a mission-driven project of fundamental importance for the geothermal knowledge of the country, systematically carried out at the National Laboratory of Energy and Geology (LNEG) for over 30 years. It was created following other mapping projects, incorporating diverse information from various data sources obtained for different purposes, from different institutions, and harmonized and processed in a way that allows it to be applied to information, dissemination, training, promotion, and research on geoenergy in mainland Portugal, thus serving as a lever for the sector's development. It constitutes a dynamic and constantly updated research effort, integrating various parameters from diverse origins applicable to geoenergy studies. Its integrated and homogenized processing allows for a visualization of the country's geothermal characteristics on a national scale and can be used to determine geothermal potential at various scales. As sources of information for the production of geothermal mapping of mainland Portugal, processed and directed towards the various types of geothermal energy and geothermal exploitation, the first works began more than 40 years ago, forming the basis of Portuguese contributions to successive European Atlases of Geothermal Resources, the last of which was published in paper in 2002 with updates published in 2025 in the European Geological Data Infrastructure. This information is constantly complemented by additional geothermal information, whose original acquisition was made for geothermal purposes, and also by information acquired for other geoscientific objectives. The incorporation of information is done according to established criteria.

  • Hydrogeological Map of Portugal, scale 1:200,000, composed of published sheets in analogical and/or digital format (Sheets 1, 6, 7 and 8). More detailed information on each of the sheets is available at the following addresses: Sheet 1 - https://sig.lneg.pt/metadados/catalog/search/resource/details.page?uuid=e58236aa-fa9b-4f7a-9f23-2d7a7e2ad41c; Sheet 6 - https://sig.lneg.pt/metadados/catalog/search/resource/details.page?uuid=32b26db5-14b9-4fd5-a240-8a016bb4e8bd; Sheet 7 - https://sig.lneg.pt/metadados/catalog/search/resource/details.page?uuid=8e8b5faf-bb9b-4c36-b59c-f3dadcbda478; Sheet 8 - https://sig.lneg.pt/metadados/catalog/search/resource/details.page?uuid=fef640c6-d353-4ba0-adb8-65b7c5afccc9.

  • The onshore wind potential map of mainland Portugal contains the mapping of the main wind parameters at two reference heights, 20m and 80m such as the average wind speed (m/s), Incident Wind Power Flow (W/m2), Weibull parameters: Scale factor A (m/s) and Weibull Form factor k (dimensionless) and the map of the annual number of hours at full capacity (NEPs) of a standard reference turbine. Due to the advancement of wind technology, wind farms are starting to operate with wind turbines with hub heights at least, 100m high. In this sense, the renewable wind mapping (NEPs) at 100m is also available, taking into account the current actual technology.

  • The Portuguese HydroGeological Resources Database provides geological and hydrogeological information for drill holes, wells, springs and boreholes.

  • The national radiometric map began to be drawn up in the 1950s for uranium prospecting and represents the natural radioactivity measurements based in old and new surveys and calibration and harmonization of these data. The mapping of the country's natural radiation allows supporting exploration for mineral and geothermal resources, geological mapping and hazard studies.