The dataset contains a summary of geological information for known mineral occurrence regions in Greenland. The information includes the geographic location, size, mineral commodities, mineralisation type, exploration history and a geological description of each occurrence or deposit. The data have been collected and compiled from field investigations conducted by geological surveys, academic researchers and mineral exploration companies. The dataset represents a regional synthesis of mineral occurrence information and provides an overview of the spatial distribution and geological context of known mineral resources in Greenland.

The database contains information on deep drilling, carried out under a permit, cf. the Subsoil Act, as well as geophysics (especially seismic), licenses and reports. These are exploration, estimation, delineation and production drillings concerning oil/gas, geothermal energy, gas storage and salt, as well as scientific drillings. The dataset contains technical, administrative and geological information from the drillings and about geophysical measurements in the drillings.

This dataset provides access to non-confidential mineral exploration licence reports and other geoscientific reports submitted to the Greenlandic authorities in accordance with the Mineral Resources Act of Greenland (effective 1 January 2010) and associated regulations. The reports are subsequently transferred to GEUS for archiving and dissemination. The database allows users to search reports using alphanumeric and geographic criteria, to access report metadata and to download available reports as PDF files. The dataset supports transparency and accessibility of geoscientific information related to mineral exploration activities in Greenland.

This dataset represents a geological map of the pre-Quaternary surface in Denmark, compiled by Håkansson & Pedersen (1992). The map illustrates the geological delineation and extent of pre-Quaternary formations beneath the Quaternary deposits and is based on geological observations, borehole data and previous interpretations. The dataset provides a regional overview of the pre-Quaternary geological surface and its characteristics as a basis for further geological interpretation. Reference: Stenestad, E. 1982: Karst. Varv, 4, pp. 113-119.

The North Atlantic current (red arrows) originates in the hot and salty Gulf Stream which flows out of the Mexican gulf and follows the east coast of the USA. When this current leaves the continental shelf and moves across the North Atlantic itâs often called the North Atlantic current. The North Atlantic current provides a significant amount of heat transport to northern Europe. This heat transport is greatest in winter because the current velocity is greater in that part of the year. The North Atlantic current keeps a very constant temperature and salinity throughout the year. It gradually looses heat and salinity as it flows towards the north east and gets mixed with colder and less salty water. At the south western part of the map where the current leaves the American continental shelf the surface temperature is 15-20 oC and the salinity is approximately 36. When it reaches the inlet to the Barents Sea the surface temperature is reduced to 5 oC in the winter and 10 oC in the summer, while the salinity stays at 35 throughout the year.The North Atlantic current continues into the Polar seas through the Fram Strait west of Svalbard and into the Barents Sea (pink arrows). When it reaches these areas its quickly chilled to 2-3 oC and the salinity sinks towards 34.7.The cooling of the North Atlantic current happens when it comes into contact with the colder and less salty Arctic current (blue arrows) that flows south west towards Svalbardâs east coast, south out of the Fram Strait and south out of the Davids Strait between Greenland and Canada. This current has salinity below 34 and the temperature is between -2 oC and +2 oC. In the same way as the North Atlantic current cools on the way north east the Arctic current heats up on its way towards the south west. The Arctic current does however give a significant colder climate around the coast of Greenland and along the Canadian Labrador- and Newfoundland-coasts compared to Europe coasts.Close to the coasts both on the eastern and western side of the North Atlantic there are lighter coastal currents with salinity between 25 and 34 (green arrows). In these areas both the temperature and salinity varies greatly throughout the season. They are warmer then the North Atlantic current during the summer and colder during the winter. In the same way the salinity varies greatly throughout the year because of the varying freshwater runoffs from land.

This repository contains three national nitrogen retention maps for Denmark and associated uncertainties. “TotalRetention_regioner.tif” is the total retention (nitrogen removal) from the source location to the coast, “Grundvandsretention_regioner.tif” is the retention during transport in the groundwater and “Overfladevandsretention.tif” is the retention in the surface water system, i.e. streams, lakes, wetlands and inundated areas. The maps for the total and groundwater retention are aggregated from a 100 m grid into regions with a minimum size of 50 ha based on similarity between neighbouring grids. For surface water, the spatial resolution is defined as the contribution catchment discharging to the individual retention environments, e.g. a lake catchment. The total retention is supplemented by two maps “TotalRetention_usikkerhed_regioner.tif” showing the uncertainty in the total retention estimated for each region and “TotalRetention_standardafvigelse_regioner.tif” displaying the standard deviation between the individual grids within each region. All maps are calculated using data for the period 2000 – 2021. The nitrogen retention maps have been developed in a collaboration between GEUS and Aarhus University. (2025-08-29).

This dataset represents the pre-Quaternary surface topography of Denmark, including Kattegat, internal waters and the sea around Bornholm. The map provides a paleotopographic relief of the surface that existed prior to deposition of Quaternary sediments, compiled from geological borehole data, seismic surveys and topographic sources. It includes polygons with 25 m contour intervals, a 500 m grid and boundary delineations, usable in combination with a standard elevation model to determine Quaternary cover thickness. The base map was hand-drawn at 1:250,000 scale and forms a nationwide thematic map product. The map is described in DGU map series no. 44, 1994.

The dataset comprises spatial polygons (Tracts) representing areas in Greenland assessed as geologically permissive for specific mineral deposit types during mineral resource assessment workshops conducted between 2009 and 2014. Assessments were carried out following the principles of the U.S. Geological Survey “three-part quantitative assessment” method (Singer, 1993), except for the 2010 rare earth elements workshop. For each Tract, probabilistic estimates of the number of undiscovered deposits at different confidence levels are provided, along with statistical results from Monte Carlo simulations based on established grade-tonnage models. The assessments do not include economic, technical, environmental or social considerations.

This dataset represents a nationwide digital geological map of superficial deposits in Denmark at a scale of 1:200.000. The map shows the classification and distribution of near-surface deposits, primarily glacial and post-glacial sediments. The dataset is based on the Digital Soil and Sediment Map of Denmark at 1:25.000 in areas where detailed mapping is available. In other areas, the distribution of deposits has been interpreted based on borehole data, landscape analysis and other available geological information. The deposits are classified into 12 generalised types, making the dataset a simplified and generalised version of the detailed 1:25.000 map. The dataset provides a national overview of superficial deposits and serves as a reference for regional and national applications.