Undiscovered Kuusamo-type cobalt-gold resources in Finland

The potential metal resources in undiscovered Kuusamo-type cobalt-gold deposits in the Finnish bedrock were estimated down to one km depth using the three-part quantitative assessment method. A grade tonnage model was constructed based on data from known deposits in the Kuusamo area in Finland. Eight permissive tracts were delineated, based on geological criteria. Most of the tracts are located in northern Finland. The number of undiscovered deposits was estimated for each tract by a group of experts at several levels of confidence. The mean estimate of the number of undiscovered Kuusamo-type cobalt-gold deposits in Finland is 58. The cobalt and gold resources in the undiscovered deposits was estimated using Monte Carlo simulation. The median estimate of undiscovered Kuusamo-type resources in Finland is 100,000 t of cobalt and 85 t of gold.