The Jouhineva mineralisation consists of a set of sub-parallel lodes hosted within a meta-andesite. The lodes are sub vertical and have a north westerly trend. Mineralisation ranges in thickness between 0.5m and 5m. Distinct metal zonation both along strike and at depth is noted to occur. Common metal associations include Cu – Co ± Au ± Ag, Cu-Au, Co and Au.
Historical Exploration & Mining
Outokumpu initially discovered the polymetallic mineralised system in 1979 through copper-gold anomalies identified in till sampling. Drill testing of a coincident EM (Electromagnetic) and till geochemical anomaly validated the target potential in 1980. Trial mining was conducted in 1984 whereby 6,250t of material was excavated.
A total of 119 diamond drill holes for 14,000 m of drilling completed across the Project between 1980 and 1998 by Outokumpu.
The drilling surrounding and along strike from the location of trial open pit was completed on an average spacing of 20m sections with 25m between holes on section.
Reconnaissance scout drilling to the north east of the trial open pit was conducted similarly on 20m sections. Only three of the drill sections had two or more holes completed. Results from scout drilling include:
KJ-JO-057: 1.7m at 1.95% Co from 24.65m (Not assayed for copper)
Analysis was completed consistently for cobalt, copper, gold, silver and more sporadically for sulphur and arsenic. A comprehensive geological database has been compiled based on the available information from Outokumpu’s historical reports. Additional information is currently been translated from Finnish to English and will be released to market upon completion.