Magino, the Making of a Mine (b4bc16b7-7bf8-4341-ac2b-aa7b794d2094)

"The Magino gold mine is located 45 km northeast of Wawa, Ontario. There was limited gold production in the late thirties. The present operation was officially opened in October 1988 and produced gold until September 1992. It was a 635 tonnes per day, decline-accessed mine, with ore coming from several small blast hole and shrinkage stopes.The host for the gold is the Webb Lake granodiorite stock which was intruded into the Goudreau Lake Deformation Zone. This east-northeast-striking deformation zone overprints the generally east-west- striking isoclinally folded metavolcanic and metasedimentary rocks, which make up the east end of the Michipicoten greenstone belt. The ore-shoots are controlled by dextral delatancy associated with the Goudreau Lake Deformation Zone. Shearing, bleaching and silicification accompanied the gold emplacement. IntroductionThe following is a general information paper on the Magino gold mine which is located 45 km- northeast of Wawa toward the east end of the Michipicoten greenstone belt. This paper summarizes the discovery, exploration and development history of the deposit. The geological characteristics are described, including regional geological setting, local mine geology, mineralization, alteration and structural history. The mining methods and the contribution of the geological staff to the successful development and mining of the gold deposit are also mentioned."