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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 (> 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 downloads show the distribution of Mercury contents in stream sediments in four different coloured point and colour shaded contour maps.

  • 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 (> 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 downloads show the distribution of Niobium contents in stream sediments in four different coloured point and colour shaded contour maps.

  • This new version of the Geological Map of the Federal Republic of Germany 1:1,000,000 (GK1000-AGNES) was compiled as part of the BGR project ‘AGNES’ (Automated generalisation / Derivation of geological spatial data). With the help of the modified FME-based AutoGen workflow - developed at the State Office for Geology, Raw Materials and Mining in Baden-Württemberg (LGRB) - new GK1000 surface data were derived semi-automatically from the current GÜK250 areal data. The GK1000-AGNES comprises the three layers lithostratigraphy, petrography and geogenesis including the respective legend. It should be noted that the current GÜK250 does not primarily consist of the latest information or areal spatial data from the State Geological Surveys (SGD). In addition, the tectonic line elements of the current GÜK250 do not have sufficient attribution for semi-automatic generalisation. In other words, there is no differentiation between main fault and secondary fault. Accordingly, a generalisation / derivation of the tectonic line elements was not performed. For the sake of completeness, the tectonic line elements and also the ice margins of the previous GK1000 were therefore integrated into the GK1000-AGNES. The inclusion of the current tectonic line elements, the current surface data and the current ice margins from the SGD is to be carried out as part of a further project.

  • Onshore geological field work combined with an onshore/offshore aeromagnetic survey was carried out during a joint expedition of the German BGR and the Canadian GSC to understand the structural architecture of the North American continental margin. The helicopter-borne magnetic survey of 2008 covered the northern coastal areas of Ellesmere Island and the adjacent marine areas. The survey was conducted with a line separation of 2 km and covered a 40 to 50 km wide swath offshore about parallel to the north coast of Ellesmere Island from Yelverton Bay in the west to Parr Bay east of Cape Columbia, the northernmost point of Canada. Between Yelverton Bay and M'Clintock Inlet, the survey extended about 40 to 50 km inland, which was the prime target area of the CASE 11 geological investigations. This section of mountainous terrain was flown in a “draped” mode to keep the distance to ground at approximately 1500 ft, same as over the offshore areas. During a 4-weeks period in May/June 2008, close to 8000 km of aeromagnetic line data were acquired, covering an area of 12000 km².

  • 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.

  • 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.