Timing of magmatism and mineralisation at Falun, a major base metal sulphide deposit in the Fennoscandian Shield, Sweden

• Main Authors: Kampmann, Tobias, Stephens, Michael B., Ripa, Magnus, Hellström, Fredrik
• Format: Conference Object
• Language: English
• Published: Luleå tekniska universitet, Geovetenskap och miljöteknik 2015
• Subjects: U-Pb geochronology; zircon; Palaeoproterozoic; Falun; Bergslagen; base metal sulphide deposit; Fennoscandian Shield; Geology; Geologi; Fennoscandian
• Online Access: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-37880

U-Pb (zircon) ion probe geochronology on key lithologies at the Palaeoproterozoic Falun Zn-Pb-Cu-(Au-Ag) sulphide deposit in the south-western part of the Fennoscandian Shield has been carried out. Results suggest that dominantly felsic sub-volcanic intrusion, hydrothermal alteration, ore formation and intrusion by dykes and plutons took place in a short time interval between 1894 ± 3 Ma and 1891 ± 3 Ma. Analogues to intra-arc VMS mineralisation in Peru are discussed. Godkänd; 2015; 20150831 (tobkam) Structural evolution, hydrothermal alteration and tectonic setting of the Falun base metal and gold deposit, Bergslagen region, Sweden