Building 3D geomodels using XRF-XRT-generated drill core data: The Lovisa-Hakansboda base metal- and Strassa-Blanka iron deposits in Bergslagen, Sweden

3D geological models based on data from geological field observations, magnetic airborne surveys and combined XRF-XRT scanning of drill core are presented for the Lovisa-Hakansboda and the Strassa-Blanka mineral systems (1.9 - 1.8 Ga). At first, the 3D architecture of several deposits was derived primarily from surface data and mine-level maps. Secondly, geochemical and structural constrains from drill core scanning (XRF-XRT) were used to refine the models locally to a detailed, in-mine scale. The constructed models were then placed in a regional context providing valuable insight on the area's local and regional deformation pattern. All modelled deposits are plunging 50-60 degrees towards the south-southeast reflecting D2 deformation (vertical shearing) during NW-SE-directed shortening and are locally overprinted by D3 (lateral shearing) during N-S-directed shortening.