swissJURA3D

3 min read Original article ↗

The 3D geological model swissJURA3D is a three dimensional representation of the subsurface of the Swiss Jura, from northwest of the Molasse Basin to the national border. It covers the Swiss part of the Jura (Internal and External Folded Jura) as well as the Swiss parts of the Haute-Saône Platform, the Upper Rhine Graben and the South German Platform. The modelling is carried out as part of the programm NGM – National Geological Model.

The swissJURA3D model output consists of three central components: a dense network of geological cross-sections (fence diagram), fault surfaces, and the lithostratigraphic reference horizon surface “Top Ifenthal Formation”.These components are interlinked and together form a coherent representation of the geological structures.

The primary data source is the geometrically harmonised surface mapping vector data from swissGEOCOVER2D. This is supplemented with geological cross-sections, borehole and geophysical data, resulting in a coherent 3D geological model based on a consistent geological and kinematic interpretation.

The first model area, St-Cergue – Le Sentier, can be viewed, queried and downloaded at viewer.swissgeol.ch. The model description, containing further information on the methodology and workflow, is also available via the viewer.

Further model areas are currently underway and will be sequentially modelled and published by 2030.

Applications

3D geological models such as swissJURA3D allow a spatially consistent representation of complex geological structures, thereby providing a valuable basis for various applications.

These include the planning and implementation of infrastructure projects, the sustainable use of the subsurface, the assessment of groundwater and mineral resources, and the analysis of geological issues. The three-dimensional perspective facilitates the identification of subsurface features and their relationships and enables more informed decisions to be made.

Terms of use

Additional information

  • Structure
    The swissJURA3D model output consists of three central components: a dense network of geological cross-sections (fence diagram), fault surfaces (structural model), and the lithostratigraphic reference horizon surface Top Ifenthal Formation (horizon model).

    File format
    swissJURA3D is available in the following file formats:

    • Complete model as Move Archive files: *.movz
    • Fence diagram as 3D-shapefiles: *shp
    • Structural model and horizon model as GoCAD-ASCII files: *ts

    Other file formats can be provided on request.

    System of coordinates
    swissJURA3D is available in the Swiss coordinate system LV95 (EPSG 2056).

    Disclaimer
    3D geological models represent a simplification of the real geological settings. The user acknowledges that the authors have taken all reasonable efforts to verify the information contained in the 3D geological model. There is no guarantee that the provided data is accurate at any specific point in the subsurface. Under no circumstances will the publisher be liable for any loss or damage of a material or immaterial nature arising from access to, use or non-use of published information, or from misuse or technical breakdown.

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swissJURA3D – Model area 1 St-Cergue – Le Sentier