Early sketches for a detailed nationwide 3D geological model based on geophysical data and boreholes

Flemming Jørgensen, Richard Thomsen, Peter B.E. Sandersen, Thomas Vangkilde-Pedersen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedings


    During the last 15 years a huge geophysical groundwater mapping project covering almost 40 % of Denmark has led to a radical improvement in the geological understanding of the uppermost 300 m. The objective of this mapping is to produce detailed groundwater vulnerability maps and to get an overview of aquifer localization and interconnection. Detailed mapping requires spatially dense geophysical data combined with geological information from new boreholes. The spatial data coverage is obtained by using the SkyTEM system, while high resolution seismic profiling is acquired along selected transects. The result is 3D resistivity volumes geologically interpreted and modeled with support from the seismic data and stratigraphic and lithological information from boreholes. A new detailed stratigraphic framework for the Miocene, hitherto unknown buried tunnel valley systems and subsurface glaciotectonic complexes constitute examples of the new knowledge that has led to revision of old maps, models and interpretations. In order to handle this new geological knowledge and to be able to extract useful, targeted and updated geological information at any time a nationwide 3D geological model is planned to be constructed over the coming years.
    Original languageEnglish
    Title of host publicationThree-Dimensional Geological Mapping: workshop extended abstracts
    Subtitle of host publicationGeological Society of America Annual Meeting Denver, Colorado – October 26, 2013
    EditorsHarvey Thorleifson, Dick Berg, Hazen Russell
    Place of PublicationSaint Paul
    PublisherUniversity of Minnesota
    Number of pages5
    Publication statusPublished - 2013
    EventGeological Society of America Annual Meeting 2013 Workshop: Three-Dimensional Geological Mapping - Denver, United States
    Duration: 26 Oct 2013 → …

    Publication series

    SeriesMinnesota Geological Survey Open File Report


    ConferenceGeological Society of America Annual Meeting 2013 Workshop
    Country/TerritoryUnited States
    Period26/10/13 → …

    Programme Area

    • Programme Area 5: Nature and Climate


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