The Collisional Orogeny in the Scandinavian Caledonides (COSC) project is investigating mountain building processes in central Sweden. Two fully cored 2.5 km deep boreholes form the backbone of the project and will provide a unique c. 5 km deep composite section through some of the overriding thrust sheets, the main décollement and into the basement of the collisional underriding plate. Combined interpretation of seismic reflection, MT, magnetic data, along with constraints from surface geology allow better predictions for the lithology to be penetrated in the planned second COSC borehole to be made. Conductive shales are expected at about 700 m, the main decollément at about


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  1. Lorenz, H., Rosberg, J.-E., Juhlin, C.
    , et al. [2015] COSC-1 drilling of a subduction-related allochthonin the Palaeozoic Caledonide orogen of Scandinavia. Scientific Drilling, 19, 1–11.
    [Google Scholar]
  2. Juhlin, C., Hedin, P., Gee, D. G.
    , et al. [2016] Seismic imaging in the eastern Scandinavian Caledonides: siting the 2.5 km deep COSC-2 borehole, central Sweden, Solid Earth Discuss., doi:10.5194/se‑2015‑129.
    https://doi.org/10.5194/se-2015-129 [Google Scholar]
  3. Yan, P., Juanatey, M. A. G., Kalscheuer, T.
    , et al. [2016] A magnetotelluric investigation in the Scandinavian Caledonides in western Jämtland, central Sweden, using the COSC-1 borehole
    [Google Scholar]

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