Geological Data & Maps

About

Exploration and mining companies according to the Mineral Resources Act and Standard Terms must submit geological reports outlining their annual activities on the licence. The reporting requirements also include submission of all raw and processed data, such as geophysical surveys, maps and analytical data.

All these reports and data are confidential for five years. If, however, the licence is relinquished, then all data associated to that licence is publicly released upon relinquishment.

The Government of Greenland and the Mineral Resources Authority is committed to providing high-quality, exploration-relevant geoscience data, and increasing access to data, free of charge to the public. These are outlined in Greenland’s Mineral Strategy 2020-2024, and in our Data Strategy.

The Department of Geology within the Mineral Resources Authority is the primary geoscience advisor on mineral resources to the Government of Greenland, municipalities and the public. The Department also carries out exploration-relevant research, produce new geoscience data, and manage and develop geological databases. See our projects.

The Mineral Resources Authority may request exploration and mining companies to submit their drill cores to the Government of Greenland.  The Government owns two drill core storage facilities, and give access to explorers and scientists to view and sample the cores.

Our main drill core archive is in Kangerlussuaq, which holds over 100 km of drill cores that dates from the 1960s to the present, from prospects all over Greenland. The other drill core archive is in Narsarsuaq storing around 7 km drill cores from rare earth element and gold prospects and deposits in South Greenland.

Contact us to arrange access to the drill core storage facilities.

Access Geological Data & Maps

The Government of Greenland’s online Diamond exploration data package compiles over 50 years of diamond exploration data. The package presents the locations of 25,000 diamond exploration samples, associated indicator minerals and detailed accompanying data. There are over 109,000 good-quality chemical analyses of mineral separate grains, also spatially represented, associated with the exploration samples. The data package also includes a total of 100 discrete, named in-situ bodies, which in principle have diamond potential (kimberlites, lamproites, ultramafic lamprophyres, and carbonatites). These occur among over 3,000 compiled in-situ occurrences of dykes, pipes, sills and blows. As a companion, 56 emplacement age determinations from 36 bodies are reported, encompassing most of the geographic extent of Greenland’s known rocks with diamond potential.

Access the online Diamond Data Package here. To download the GIS Data Package as a *.zip file, please contact us at asn@nanoq.gl.

The Greenland Mineral Resources Portal (www.greenmin.gl) acts as a repository for all exploration-relevant geoscience data for Greenland. The Portal is an ongoing project collaboration between the Department of Geology within the Mineral Resources Authority and the Geological Survey of Denmark and Greenland (GEUS). The Portal is continually updated, and includes:

  • digital and scanned geological maps of a range of scales
  • topographic data
  • geophysical surveys including magnetic, electromagnetic, and radiometric data
  • exploration company reports
  • geological survey reports
  • descriptions of mineral occurrences
  • stream sediment geochemistry
  • geochronology data
  • aerial photographs
  • drill core information
  • current and historical licence information
  • geoscience data packages

The Maniitsoq 1:100,000 digital geological map was compiled in the period 2016–2019 by J. Hollis (Ministry of Mineral Resources, Government of Greenland) with contributions from N. Gardiner, H. Heide-Jørgensen, C. Kirkland, J. Petersen, H. Stendal, A. Steenfelt, K. Szilas, A. Vass, P. Waterton, and C. Yakymchuk.

The map covers the area 65° to 65.5°N and 51.45° to 53.16° W and was compiled in WGS84 UTM zone 22 north, using 2017 coastline data generated from the Arctic DEM by Asiaq, which is included in the data package.

Mapping drew on pre-existing and new data including topographic, satellite imagery, field mapping, geophysical, geochemical, geochronological, petrological, and mineral occurrence data, described in the links below and in more detail in an accompanying explanatory notes to the map, to be added to future updates of the digital map product.

Recommended citation: Government of Greenland, August 2021. Maniitsoq 1:100,000 digital geological map package.

Maniitsoq Geology Map Legend:

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Maniitsoq Geochemistry Metadata:

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Maniitsoq Geochronology Metadata:

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Maniitsoq Field Sites Metadata:

Field sites data was extracted from the Government of Greenland Field Observation and Rock Database and is accessible via hyperlinks. Data was collected during 2016–2018 field mapping work and includes Originator, Date, Photos, Lithology, Structural, and Sample data.

Maniitsoq Structural Measurements Metadata:

Structural measurements are point data comprising selected planar and linear structural measurements representative at map scale, including fold axes, lineations, foliations, and fold axial surfaces. Data include measurements collected during 2016–2018 field mapping as well as digitized from existing unpublished survey and exploration company maps and data compilations.

 

Maniitsoq Dykes Metadata:

Dykes are line data mapped from 2016–2018 field mapping, interpretation of geophysical and satellite images, and compiled from existing published and unpublished survey and exploration company field maps.

Maniitsoq Structures Metadata:

Structures are line data comprising faults, fold axial traces, shear zones, trend of foliation, and lineaments. Data were compiled from 2016–2018 field mapping, interpretation of geophysical and satellite images, and compiled from existing published and unpublished survey and exploration company field maps. In places, where unexposed, the structural lines are interpreted under surficial cover.

Maniitsoq Surface Geology Metadata:

Surface Geology is polygon data of surficial cover over the basement geology, including alluvial, glacial, marine, and talus deposits, mainly compiled from interpretation of satellite images but also using field observations.

Maniitsoq Interpreted Geology Metadata:

Interpreted Geology comprises polygons of the interpreted basement geology. In places, where unexposed, the geology is interpreted under surficial cover. Each polygon is assigned a geological map unit name and corresponding code, as well as being assigned to a tectonostratigraphic terrane. The codes follow a standard format based on the age, map unit name, lithology and – where necessary – terrane. The coding structure is a fundamental component of the Greenland Geologic Units Database, where the map units are also described in full. The explanatory notes will contain an extract of the complete, systematic map unit descriptions extracted from the Geologic Units Database.

Maniitsoq Topographic Basemap Metadata:

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GEUS Geological Map of Greenland – 1:500 000 – Polygon Legend:

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Ministry of Mineral Resources (GOVMIN) Diamond Data 2019:

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ArcGIS Project and Data is downloadable here:

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The geochronology database for Greenland is the product of an ongoing research collaboration between the Ministry of Mineral Resources (MMR) and the Timescales of Mineral Systems Group at Curtin University. The database contains over 30,000 U-Pb mineral isotope analyses from over 1300 samples. The data is sourced from a range of mostly published academic sources but also includes unpublished data, including data produced from the MMR-Curtin geochronology research collaboration. All data are referenced, georeferenced, reported at the same uncertainty levels, and every analysis has been assigned an interpretation (e.g. magmatic crystallisation, metamorphic, detrital, inherited etc). This makes the database particularly valuable for interrogating multiple sources on the timing of geological processes across an entire Greenland scale

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Diamond data portal
2019 Update
The Government of Greenland's online Diamond exploration data package compiles over 50 years of diamond exploration data.
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Greenland Mineral Resources Portal
Details
The Greenland Mineral Resources Portal acts as a repository for all exploration-relevant geoscience data for Greenland.
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Maniitsoq 1:100k geological map
GeochronologyGeochronology

Geochronology

Our projects

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