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  • GEMAS (Geochemical Mapping of Agricultural and Grazing Land Soil in Europe) is a cooperative project between the Geochemistry Expert Group of EuroGeoSurveys and Eurometeaux. In total, more than 60 international organisations and institutions worldwide were involved in the implementation of the project. During 2008 and 2009, a total of 2219 samples of agricultural (arable land soils, 0 – 20 cm, Ap samples) and 2127 samples of grazing land (pasture land soils, 0 – 10 cm, Gr samples) soil were collected at a density of 1 site/2 500 km² each from 33 European countries, covering an area of 5,600,000 km². All samples were analysed for 52 chemical elements after an aqua regia extraction, 41 by XRF (total), TC and TOC. In addition, the agricultural soil samples were analysed for 57 elements in a mobile metal ion (MMI®) extraction and Pb isotopes. All analytical results were subject to tight external quality control procedures. The GEMAS project thus provides for the first time fully harmonised data for element concentrations and bioavailability of the elements at the continental (European) scale. The downloadable files present the areal distribution of the element contents determined by different analytical methods in the shape of colour shaded contour maps with a classification in 7 and 72 levels each.

  • The map Organic Matter Content of Top-Soils in Germany 1:1,000,000 highlights the results of a Germany-wide compilation of typical soil organic matter contents in top-soils differentiated according to 15 groups of soil parent material, four climatic areas and the main land use. The evaluation is based on more than 9000 soil data profiles with information about Soil Organic Matter (SOM) from a period of about 20 years. The report 'The Organic Matter Content of Top-Soils in Germany', BGR Archiv, No. 0127036 (in German) documents the methodology. The classes of the map legend are based on the classes given in the German Soil Mapping Guideline, 5th Edition (KA5).

  • BGR conducted an airborne survey in the region of the Stassfurt-Egeln salt anticline as part of a BMBF research project "Dynamic processes in flooded or abandoned salt mines and their overburden”. The survey area Stassfurt (2007) is bounded by the towns and settlements Aschersleben, Kroppenstedt, Hadmersleben, Altenweddingen, Atzendorf, Förderstedt and Bernburg. The size of the area is about 467 km². The area was surveyed with 29 flights totalling 5034 line-km (132,390 survey points). The nominal separation of the 155 SE-NW lines and 33 NE-SW tie lines was 100 m and 1000 m, respectively. The maps display the total count, the (equivalent) content of potassium, uranium and thorium as well as the exposure rate at ground.

  • GEMAS (Geochemical Mapping of Agricultural and Grazing Land Soil in Europe) is a cooperative project between the Geochemistry Expert Group of EuroGeoSurveys and Eurometeaux. In total, more than 60 international organisations and institutions worldwide were involved in the implementation of the project. During 2008 and 2009, a total of 2219 samples of agricultural (arable land soils, 0 – 20 cm, Ap samples) and 2127 samples of grazing land (pasture land soils, 0 – 10 cm, Gr samples) soil were collected at a density of 1 site/2 500 km² each from 33 European countries, covering an area of 5,600,000 km². All samples were analysed for 52 chemical elements after an aqua regia extraction, 41 by XRF (total), TC and TOC. In addition, the agricultural soil samples were analysed for 57 elements in a mobile metal ion (MMI®) extraction and Pb isotopes. All analytical results were subject to tight external quality control procedures. The GEMAS project thus provides for the first time fully harmonised data for element concentrations and bioavailability of the elements at the continental (European) scale. The downloadable files present the areal distribution of the element contents determined by different analytical methods in the shape of colour shaded contour maps with a classification in 7 and 72 levels each.

  • BGR conducted within the project „Airborne geophysical surveys for mapping the shallow subsurface in Germany “ (D-AERO) airborne surveys at the German North Sea coast. The survey area Langeoog (2008/09) comprises the island of Langeoog, the western portion of the island of Spiekeroog, the Wadden Sea to the south of the islands as well as an onshore stripe ranging from about Dornum in the west to Werdum in the east. The size of the area is about 259 km². The area was surveyed with 12 flights totalling to 1080 line-km (314,672 survey points). The nominal separation of the 68 N-S lines and 7 W-E tie lines was 250 m and 2000 m, respectively. The maps display the geophysical parameters apparent resistivity and centroid depth derived from the HEM data at the six frequencies of the HEM system (0.4 - 130 kHz). Furthermore, horizontal and vertical slices were derived from layered-earth models (resistivities and thicknesses of six model layers).

  • GEMAS (Geochemical Mapping of Agricultural and Grazing Land Soil in Europe) is a cooperative project between the Geochemistry Expert Group of EuroGeoSurveys and Eurometeaux. In total, more than 60 international organisations and institutions worldwide were involved in the implementation of the project. During 2008 and 2009, a total of 2219 samples of agricultural (arable land soils, 0 – 20 cm, Ap samples) and 2127 samples of grazing land (pasture land soils, 0 – 10 cm, Gr samples) soil were collected at a density of 1 site/2 500 km² each from 33 European countries, covering an area of 5,600,000 km². All samples were analysed for 52 chemical elements after an aqua regia extraction, 41 by XRF (total), TC and TOC. In the agricultural soil samples, 57 elements in a mobile metal ion (MMI®) extraction and Pb isotopes ratios were also analysed. In addition to the chemical element contents, soil properties and soil parameters such as pH, particle size distribution, effective cation exchange capacity (CEC), MIR spectra and magnetic susceptibility were investigated and some coefficients were calculated. All analytical results were subject to tight external quality control procedures. The GEMAS project thus provides for the first time fully harmonised data for element concentrations and bioavailability of the elements at the continental (European) scale. The geochemical maps provided in the data series “GEMAS - Single element maps” and “GEMAS - Parameters and indices” show an unbiased representation of the distribution patterns of the investigated elements and parameters. The data series “GEMAS - Supporting information” provides additional information to support the interpretation of these geochemical maps. The data set “Climate zones” belonging to this data series provides a map of climate zone distributed in the project survey area (data source: Baritz et al., 2005).

  • BGR conducted within the project „Airborne geophysical surveys for mapping the shallow subsurface in Germany “ (D-AERO) airborne surveys at the German North Sea coast. The survey area of the East-Frisian island of Borkum (2008) is bounded by the Westerems close to the Dutch-German border to the southwest, by the Osterems to the northeast, and by the mouth of the river Ems to the south. The size of the area is about 88 km². The area was surveyed with 4 flights totalling to 414 line-km (110,238 survey points). The nominal separation of the 36 NW-SE lines and 11 NE-SW tie lines was 250 m and 500 m, respectively. The maps display the geophysical parameters apparent resistivity and centroid depth derived from the HEM data at the six frequencies of the HEM system (0.4 - 130 kHz). Furthermore, horizontal and vertical slices were derived from layered-earth models (resistivities and thicknesses of five model layers).

  • BGR conducted within the project „Airborne geophysical surveys for mapping the shallow subsurface in Germany “ (D-AERO) airborne surveys at the German North Sea coast. The survey area Baltrum (2014) covers the central and eatern portion of the island of Baltrum. The size of the area is about 4 km². The area was surveyed with 1 flight totalling to 17 line-km (456 survey points). The nominal separation of the 5 E-W lines was 250 m. The maps display the total count, the (equivalent) content of potassium, uranium and thorium as well as the exposure rate at ground.

  • The 'Map of Mining and Storage Operations of the Federal Republic of Germany' on a scale of 1:2,000,000 is published by the Bundesanstalt für Geowissenschaften und Rohstoffe (Federal Institute for Geosciences and Natural Resources) in cooperation with the mining authorities of the federal states. It shows the locations of mining operations for coal, lignite, petroleum, natural gas, raw material, iron and manganese ore and salt. The annual deliveries are presented in six categories. The storage operations for petroleum, natural gas, compressed air and waste disposal sites are distinguished by their type. Moreover, the map contains the locations of geothermal plants.

  • The International Hydrogeological Map of Europe, scale 1:1,500,000 is a series of general hydrogeological maps comprising 25 map sheets with explanatory notes, covering the whole European continent and parts of the Near East. The national contributions to this map series were compiled by hydrogeologists and experts in related sciences of the countries concerned under the auspices of the International Association of Hydrogeologists (IAH) and its Commission on Hydrogeological Maps (COHYM). The project is supported by the Commission for the Geological Map of the World (CGMW).The scientific editorial work is supported financially by the Government of the Federal Republic of Germany through the Bundesanstalt für Geowissenschaften und Rohstoffe (BGR) and by the United Nations Educational, Scientific and Cultural Organization (UNESCO). These organizations are responsible for the cartography, printing and publication of the map sheets and explanatory notes.The series of hydrogeological maps seeks to represent the hydrogeological setting of Europe as a whole without regard to political boundaries. Together with the information presented in the accompanying explanatory notes, the map can be used for scientific purposes, for large-scale regional planning and as a basis for detailed hydrogeological mapping.

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