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    Kartet viser utbredelsen av nordøstarktisk hyse. For mer informasjon se: http://www.imr.no/temasider/fisk/hyse/nordostarktisk_hyse/nb-no

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    The Digital Geological Map of Denmark 1:25,000, version 7.0, is a nationwide geological dataset describing the distribution of near-surface soil and sediment types across Denmark. The dataset is produced and maintained by the Geological Survey of Denmark and Greenland (GEUS) and represents the latest version of the digital soil and sediment map at a scale of 1:25,000. The map is based on an integrated interpretation of geological field observations, borehole data, historical analogue maps, and more recent digital datasets. Soil and sediment units are classified according to their lithological and genetic characteristics and represent the dominant materials in the uppermost geological layers. The dataset is continuously updated, and version 7.0 includes both revisions of previously mapped areas and newly mapped regions. The dataset is widely used as a foundation for geological analysis, land-use planning, environmental assessment, groundwater protection, raw material management, research, and education. In version 7 from 2023, 93% of Denmark's land area is classified, and the map is continuously supplemented. The map and sediment type description are published in GEUS report 2023/29, where further information is available.

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    The dataset represents a hillshade derived from the Danish Digital Terrain Model 2007 (DHM/Terrain 2007). The hillshade is produced as a cartographic overlay layer designed to enhance terrain forms and topographic structures in the Danish landscape. The dataset is suitable for visual analysis and map presentation and can be used as a background layer together with other thematic datasets. The hillshade is based on the DHM/Terrain model, which represents terrain elevation relative to mean sea level (DVR90), with buildings, vegetation and other surface objects removed. The original terrain model is based on nationwide airborne LiDAR surveys collected during 2005–2007 and subsequently processed and quality assured.

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    The dataset represents a nationwide mapping of buried valleys in Denmark. The map depicts the occurrence, distribution and general geometry of mapped buried valleys in the Danish subsurface. Buried valleys are elongated depressions in the subsurface that are today fully or partly infilled with younger sediments. In Denmark, the majority of mapped buried valleys are interpreted to have formed during repeated glaciations in the Quaternary period. The valleys are typically 0.5–2 km wide and may reach depths of up to approximately 400 m. The dataset is based on interpretation of geophysical data, primarily TEM and SkyTEM surveys, supplemented by seismic data and borehole information. The mapping provides a national overview of buried valleys and forms a key basis for understanding the geological framework of the subsurface.

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    The dataset comprises regional airborne radiometric measurements acquired in Greenland during 1975–1982 as part of systematic geophysical mapping programmes. The measurements were collected using aircraft-mounted gamma spectrometers and record natural gamma radiation from potassium (K), thorium (Th) and uranium (U). The surveys covered large parts of Greenland and were conducted to support regional geological mapping and mineral exploration. The data constitute a historical geophysical reference dataset for analyses of near-surface lithological variations and the distribution of radioactive elements.

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    The dataset shows the thickness of Quaternary deposits in Denmark. The thickness has been calculated as the difference between surface elevation and the depth to the top of the pre-Quaternary deposits. The map provides a nationwide overview of variations in Quaternary thickness and is used in geological, hydrogeological and planning-related contexts.

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    The dataset represents an index layer showing the geographic extent of archived and unpublished historical geological maps and sections from Greenland. The layer functions as a search and reference tool and does not contain the original map material. The dataset supports identification and access to historical geological archive documents.