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Potential Field, Geoelectrical and Reflection Seismic Investigations for Massive Sulphide Exploration in the Skellefte Mining District, Northern Sweden

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Multi-scale geophysical studies were conducted in the central Skellefte district (CSD) in order to delineate the geometry of the upper crust (down to maximum ~ 4.5 km depth) for prospecting volcanic massive sulphide (VMS) mineralization. These geophysical investigations include potential field, resistivity/induced polarization (IP), reflection seismic and magnetotelluric (MT) data which were collected between 2009 and 2010. The interpretations were divided in two scales: (i) shallow (~ 1.5 km) and (ii) deep (~ 4.5 km). Physical properties of the rocks, including density, magnetic susceptibility, resistivity and chargeability, were also used to improve interpretations. The study result delineates the geometry of the upper crust in the CSD and new models were suggested based on new and joint geophysical interpretation which can benefit VMS prospecting in the area. The result also indicates that a strongly conductive zone detected by resistivity/IP data may have been missed using other geophysical data.
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Bibliogr. 30 poz.
  • Division of Geosciences and Environmental Engineering, Luleå University of Technology, Luleå, Sweden,
  • Department of Earth Sciences, Division of Geophysics, Uppsala University, Uppsala, Sweden
  • Department of Earth Sciences, Division of Geophysics, Uppsala University, Uppsala, Sweden
  • Division of Geosciences and Environmental Engineering, Luleå University of Technology, Luleå, Sweden
  • Division of Geosciences and Environmental Engineering, Luleå University of Technology, Luleå, Sweden
  • Division of Geosciences and Environmental Engineering, Luleå University of Technology, Luleå, Sweden
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Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)
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