WMSThe map shows the shallow rock aquifer types at a scale of 1 : 500 000. The rock units in the generalised geological map are divided into three classes, describing the principal aquifer properties: pore aquifers, joint aquifers and aquitards. - Pore aquifers: These unconsolidated sedimentary rocks predominantly consist of the coarser gravel and sand grain components and have a contiguous pore volume, comprising between 10 and 35% of the rock mass volume, depending on the specific composition. Groundwater can move easily through these rocks, is relatively uniformly distributed and forms a pronounced groundwater surface, which can be easily exposed in wells. - Aquitards: Rocks with very low effective void space and dense rock mass can only store or transport groundwater in very small quantities. Fine-grained unconsolidated and consolidated rocks (clayey, silty), and very sparsely jointed, dense vulcanites and magmatites act as aquitards. The clayey rocks have a high primary porosity of over 30%, but this is not available for groundwater transport due to the strong capillary forces acting within the pores. - Joint aquifers: These consolidated, compact rocks, predominantly the result of the diagenesis of sediments, were subsequently jointed and faulted to varying degrees by tectonic stresses. This secondary pore volume only occupies a small percentage of the overall rock volume, but can facilitate relatively fast groundwater transport. The primary pore volume in these rocks has been substantially reduced by diagenetic processes. This map was created by re-attributing the contents of the 1 : 500 000 generalised geological map of Lower Saxony and therefore generally only covers a depth range down to approximately 2 m below grade. Information on the properties of deeper strata cannot be obtained from this map.sgd_HydrogeologieinspireidentifiziertopendataNIBIS-MetadatenopendataGeologygeoscientificInformationinfoMapAccessServiceLandesamt für Bergbau, Energie und Geologie (LBEG)postal

Stilleweg 2

HannoverNiedersachsen30655Deutschland+49 511 643-0metadaten@lbeg.niedersachsen.denonenone18001800text/xmlapplication/vnd.ogc.wms_xmlimage/pngimage/png32image/png24image/png;mode=32bitimage/png;mode=24bitimage/jpegtext/htmltext/plaintext/html;fragmenttext/html;cardoapplication/geo+jsonapplication/geojsonapplication/vnd.ogc.se_xmlXML<_ExtendedCapabilities xsi:type="idu:WmsExtendedCapabilities_Type">3.9.7.71026.3.2.52truetruetruehttps://nibis.lbeg.de/cardomap3/public/ogc.ashx?Service=IKX&RenderHint=TargetISOWMS&nodeId=60gergerL19The map shows the shallow rock aquifer types at a scale of 1 : 500 000. The rock units in the generalised geological map are divided into three classes, describing the principal aquifer properties: pore aquifers, joint aquifers and aquitards. - Pore aquifers: These unconsolidated sedimentary rocks predominantly consist of the coarser gravel and sand grain components and have a contiguous pore volume, comprising between 10 and 35% of the rock mass volume, depending on the specific composition. Groundwater can move easily through these rocks, is relatively uniformly distributed and forms a pronounced groundwater surface, which can be easily exposed in wells. - Aquitards: Rocks with very low effective void space and dense rock mass can only store or transport groundwater in very small quantities. Fine-grained unconsolidated and consolidated rocks (clayey, silty), and very sparsely jointed, dense vulcanites and magmatites act as aquitards. The clayey rocks have a high primary porosity of over 30%, but this is not available for groundwater transport due to the strong capillary forces acting within the pores. - Joint aquifers: These consolidated, compact rocks, predominantly the result of the diagenesis of sediments, were subsequently jointed and faulted to varying degrees by tectonic stresses. This secondary pore volume only occupies a small percentage of the overall rock volume, but can facilitate relatively fast groundwater transport. The primary pore volume in these rocks has been substantially reduced by diagenetic processes. This map was created by re-attributing the contents of the 1 : 500 000 generalised geological map of Lower Saxony and therefore generally only covers a depth range down to approximately 2 m below grade. Information on the properties of deeper strata cannot be obtained from this map.opendatainspireidentifiziertsgd_HydrogeologieGeologieopendataNIBIS-MetadatenCRS:84EPSG:3038EPSG:3039EPSG:3040EPSG:3041EPSG:3042EPSG:3043EPSG:3044EPSG:3045EPSG:3046EPSG:3047EPSG:3857EPSG:4258EPSG:4314EPSG:4326EPSG:4647EPSG:5649EPSG:5650EPSG:25832EPSG:31466EPSG:31467EPSG:31468EPSG:31469EPSG:32631EPSG:32632EPSG:326336.5474718411.7416108651.224963353.93431815https://registry.gdi-de.org/id/de.ni.land.lbeg/0831cffa-0c80-45bc-86b6-d8e355c44cfetext/xml