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  • The map shows spatial units of Germany that can be uniformly described and delimited with respect to the type of flow as well as the chemical composition of the groundwater. In total, a distinction is made between five regions and 24 subregions, which have been assigned to the most important landscape units in Germany. For each subregion, a schematic lithological column profile has been compiled, showing a typical layered structure of the subsurface of each region. The types of rock are additionally subdivided into aquifers, aquitards and aquicludes. The aquifers are classified into the three classes of pore, fractured and karst aquifers, while the aquitards are divided into unconsolidated or consolidated rocks. Another distinction is made according to the prevailing chemical environment of the rock (silicate, carbonate, sulphate, organic). As a result, ten types of aquifers and six types of aquitards are distinguished. The basis for the map is the digital data of the Geological Map of Germany 1:1,000,000 (GK1000).

  • The map “Groundwater resources in the ECOWAS region” captures and standardises existing groundwater data of West Africa and gives a consistent regional overview on the groundwater resources. It provides a quantitative assessment of aquifer productivity using a combination of aquifer flow type and expected borehole yield. The map highlights the suitability of aquifers for water supply on different scales while at the same time showing the physical limits of groundwater development. Map elaboration comprised the harmonisation of existing continental and regional geological maps and the attribution of hydrogeological units with expected yield data compiled from a literature metasurvey. Insert maps highlight the geological structure, geogenic background levels of arsenic and fluoride, and groundwater recharge.

  • The data set includes meta data of boreholes that are affected by the Geological Data Act and are located within the exclusive economic zone of Germany.

  • The geological overview map (GÜK200) provides detailed information on the stratigraphy, petrography and genesis of the geological units shown. In the revised GÜK200, the surface geology on the mainland is shown in up to two overlays. The shallow, overlying soil is not shown. In the marine area, only the petrography of the recent seabed is shown, which comprises the uppermost 20 cm of the seabed. In accordance with the original GÜK200 map sheets, the seabed is addressed stratigraphically as recent seabed. The entire map area is dominated by Quaternary formations, whereby a distinction is made between Pleistocene and Holocene deposits. The Pleistocene deposits are dominated by the glacial deposits of the Elster, Saale and Weichselian cold periods, with glacial basin sediments, boulder clay of the ground moraines and glaciofluvial, fluviatile and aeolian deposits. After the end of the glaciations with the rising sea level, the various marine facies, sediments of the land/sea transition zone and on land, above all the fens and raised bogs dominate in the Holocene. Outcrops of older geological units are linked to the dynamics of the Zechstein salts in the subsurface and only occur sporadically in the map area, such as the well-known red sandstone cliffs of Helgoland.

  • 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.

  • 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.

  • The map of the BGR geoscientific collections displays the localities of the collection‘s objects. Two different types of positions are presented: localities based on available coordinates (´Fundort erfasst´) and subsequently generated coordinates based on descriptions (´Position ermittelt´). The BGR-Geoviewer provides a link directly to the GewiS application (https://gewis.bgr.de) and thus to the description of the collection objects.

  • The map shows in a generalized form the distribution of groundwater resources in Germany, based on the yields of existing waterworks or potential yields derived from this data. Five yield levels have been classified, indicating a ranking of the groundwater resources in their importance for the drinking water supply. In addition to areas with significant or less significant resources, areas in which no contiguous and regionally significant groundwater resources are available or expected are presented. The regionally significant groundwater resources are further subdivided into subclasses of roughly quantified yields. The map is based on a publication of the BGR (Vierhuff, H., Müller, W. & Aust, H. 1981), which was extended to the territory of the new federal states (Müller, A. 1993).

  • 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.

  • For farming, the production function of the soils and thus the natural soil fertility play a decisive role. A healthy soil with its properties, potentials and functions is the basis for high land yields, but at the same time also the basis for sustainable agriculture and responsible land use. The theme maps of soil capability in Germany are based on the landuse stratified soil map of Germany 1:1,000,000 (BUEK1000N), the Digital Elevation Model DGM50 of the German Federal Agency for Cartography and Geodesy (BKG), climatic information of the German Meteorological Service (DWD) for the period 1961-1990 as well as on land use data from the data set CORINE Landcover 2006 (UBA).

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