Kolima Zinc Project
The Kolima Project is located in the prolific Vihanti-Pyhäsalmi VMS belt in Central Finland, 65km south of the Pyhäsalmi mine.
The project hosts a thick package of mineralized distal-type volcanics with up to 20 %Zn, discovered by the Geological Survey of Finland (GTK) in the period 1956-1983.
- Zinc -sulphides extend over an area of 2 km long and 200-400m wide
- in strongly altered metasediments and fine volcanoclastics
- outlined by 70 drillholes
- mineralized intervals of +100m length -main sulphides are sphalerite, pyrite and galena, with minor chalcopyrite and arsenopyrite
- sulphides occur as fine disseminations and occasional thin layers of semi-massive sulphide, containing between 10-20% Zn and several % Pb
The zinc mineralization is probably the distal part of a larger VMS system, of which the proximal, massive part and feeder zone have not yet been found. Indirect evidence for its presence are the numerous mineralized boulders with Cu-Au (up to 5% Cu and 17 g/t Au) of unknown origin and the intersection of thick series of felsic volcanics in many of the GTK step-out drillholes.
AFOy plans to locate possible massive sulphide ore through a deep penetrating, airborne EM survey (VTEM) followed by diamond drilling.