Details of the Abstract
| Title of paper | D-Rex project in Fennoscandia, mapping large scale mineral systems |
| List of authors |
Rydman, O., Smirnov, M.Yu. , Rasmussen, T.M. , Bauer,T.E. , Vozar, J., Kamm, J. , Hill, G., Kovacikova, S., DREX WG |
| Affiliation(s) |
Luleå University of Technology, Sweden, Luleå University of Technology, Sweden, Luleå University of Technology, Sweden, Luleå University of Technology, Sweden, Earth Science Institute, Bratislava, Slovakia, GTK, Finland, Institute of Geophysics, Prague, Czechia, Institute of Geophysics, Prague, Czechia, ERAMIN3 DREX project |
| Summary | The primary objective of the D-REx project is to enhance the identification of previously unrecognized endowed regions. Traditionally, the study of mineralized systems has concentrated on the near-surface identification and evaluation of individual resource bodies using shallow imaging techniques. We have collected regional magnetotelluric datasets at three prospective areas in Sweden, Norway and Finland to generate the regional and deposit scale conductivity models needed to identify the deeper footprints of metal concentration. Here we focus on the results obtained in Northern Sweden. About 400 MT sites in the area of 100x100 km2. were inverted to obtain a full 3D conductivity model of the entire crust. The 3D conductivity model contains extensive enhanced conductivity structure in the upper, middle crust at the depth range from about 10 to 30 km. The resolution of the 3D model is sufficient to map pipe-like deep feeders partly reaching the surface in the close vicinity of known IOA deposits. |
| Session Keyword | 3.0 EM methods for exploration (geothermal, mineral resources, etc.) |
| File upload |
3.0_d-rex_project_in_fennosca_smirnov.pdf
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