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In the former GDR, investigations were carried out between 1980 and 1990 to estimate the raw material potential in the pre-Upper Permian bedrock units (Flechtingen-Rosslau Hills, Harz Mountains, Saxon Granulite Mountains, Thuringian Forest, Thuringian-Vogtlandian Slate Mountains, Ore Mountains, Elbe Valley Region/Lusatia), which lie at the earth's surface or are slightly covered by the Cenozoic. Part of these investigations was a geochemical prospection in the area of the above-mentioned bedrock units. Approximately 18,000 water and 17,500 stream sediment samples were taken and geochemically analysed over an area of almost 15,000 km². The results of these investigations were documented in sub-reports on the individual bedrock units as well as in the "Final Report on the Comparative Evaluation of the Raw Material Potential in the Bedrock Units of the GDR" (Röllig et al., 1990; in German). These data from the bedrock units in the southern part of the former GDR are unique in their high sampling density (more than 1 sample/km²) and provide a comprehensive geochemical survey of these areas. All later geochemical investigations (Geochemical Atlas 2000 as well as within the framework of GEMAS and FOREGS) were carried out with a much lower sampling density. These valuable and irretrievable data are now made generally available via the BGR geoportal. In addition to the digital provision of the original data material, area-wide distribution maps are made available for the first time, which were generated using modern computer-assisted methods. The WMS shows the distribution of the measured element concentrations and parameters in stream waters and stream sediments in four different coloured point and colour shaded contour maps for each element or parameter.
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The data set includes meta data from sedimentary samples taken within the exclusive economic zone of Germany that are affected by the Geological Data Act. Also includes information on applied laboratory methods.
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Web Map Service (WMS) of the map Groups of soil parent material in Germany 1:5,000,000. The presented map at scale 1:5,000,000 shows the distribution of 15 soil parent material groups in Germany with polygons of at least 64 square kilometers. Parent material is the rock, from which soil is formed. It was derived from the landuse use stratified soil map of Germany at scale 1:1,000,000. The version 3.0 of the map is based on the Digital Landscape Model 1:1,000,000 (DLM1000) of the Federal Agency for Cartography and Geodesy.
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The KOR250 in the scale of 1:250,000 shows occurrences and deposits of mineral resources in Germany, which lie close to the Earth’s surface, i.e. can be mined in open-pits, quarries or near-surface mines. These mineral resources include industrial minerals, aggregates, peat, lignite, oil shales, and natural brines. The map is the digital successor of the map series KOR200 „Map of Near-Surface Deposits of the Federal Republic of Germany 1:200,000”, which has been published since 1984. The KOR200 and KOR250 have been published by the Federal Institute for Geosciences and Natural Resources together with the State Geological Surveys of the federal states on behalf of the Federal Ministry for Economic Affairs and Energy. Primary purpose of the KOR250 is to display Germany’s potential of domestic raw materials in a comparable way. The explanations given in the printed booklets accompanying the KOR200 are not available in the digital KOR250. In the KOR250 besides the defined deposits and differently coloured areas of raw materials, "active mines" (= operations) at time of publication or "focal points of several active mines" are marked with one symbol each. These symbols often display the headquarters of the mining company and not the mining site itself. As the map sheets of the KOR200 have been generated over more than three decades the timeliness of data is extremely different. For more detail, the current large-scale raw material maps of the Federal State Geological Surveys should always be consulted.
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A bathymetric map shows the topography of the seabed using depth contours. For the GPDN project area, it was necessary to create a specially adapted bathymetric map in order to achieve a uniform reference level for the creation of various 3D models, among other things.
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The maps show a total of 14 newly interpreted base horizons (Middle Miocene unconformity to the base of the Zechstein) of depth maps and a total of 13 layer thickness maps from the Lower Miocene to the Zechstein.
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The map shows the distribution of potential sluiced sand north of the East Frisian Islands. There, primarily sands of medium grain size are needed for the protection of island coasts in order to compensate for the constant coastal erosion caused by rising sea levels, storm surge events and current-induced material removal and transport. The study area is limited to an area bounded on land by the -8 m NN isobath and on sea by the southern traffic separation area ("Terschelling - German Bight"). Large-scale extraction of sluiced sand is only possible down to a depth of 3 m. For future needs, local depth extractions down to a depth of 20 m below the seabed surface may have to be included in the considerations. For the evaluation of the grain size spectrum searched for, 2 maps were prepared. The observation depth differs with regard to the evaluation for a surface sampling to a depth of 3 m and a second one for depth sampling to a depth of 20 m below the seabed. Two classes were kept, showing potential occurrences of sand in the depth ranges mentioned. If the data basis is available in high quality, the general class "sand" was specified and subdivided into "fine to medium sand".
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In the map, all strata are first classified in the four main types “pore aquifers”, “combined pore and fractured aquifers”, “fractured and karst aquifers” and “aquitards and aquicludes”. Further differentiation is made depending on the areal extent and productivity of the aquifers according to the classification of the Standard Legend for Hydrogeological Maps (SLHyM). The productivity classes have been derived from permeability values. In addition, the surface strata are divided into 19 different types of consolidated or unconsolidated rocks and four types of covering layers. Furthermore, the map shows salinity zones of near-surface groundwater in inland areas, as well as zones of saltwater intrusions along the coast. Areas in which groundwater is affected by mining are also shown. The map “Hydrogeology” is based on the digital Geological Map of Germany 1:1,000,000 (GK1000) published by BGR in 1993. The digital GK1000 contains attributes for the stratigraphy, lithology and genesis of the rocks.
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The 1:5 Million International Geological Map of Europe and Adjacent Areas shows the pre-Quaternary geology of Europe onshore and offshore. In addition to the geology attributed by age, petrography and genesis, also magnetic anomalies, tectonic structures, metamorphism and – in the offshore areas – information about the continental/oceanic crust and the continental margin, are shown. The map was developed by BGR under the umbrella of the Commission of the Geological Map of the World (CGMW) and in cooperation with geological surveys organisations of 48 countries and more than 20 research institutes. For detailed information about the 'IGME 5000: More than just a map – A multinational GIS Project' please visit the IGME website. Corresponding to the INSPIRE-directive, this dataset comprises the German part of the map.
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The map series General Geological Map of the Federal Republic of Germany 1:200,000 (GÜK200) is the result of cooperation between the State Geological Surveys of the Federal Republic of Germany (SGD), the Geological Surveys of neighbouring countries and the Federal Institute for Geosciences and Natural Resources (BGR). The GÜK200 displays the surface geology of Germany and adjacent areas of neighbouring countries on 55 map sheets. The map sheets show the regional dissemination of more than 3800 geological units. The geological units contain information on stratigraphy (age), genesis and petrography (composition) of the rocks.