What happens to mine sites after a mine is closed - MiningFacts
Mine closure occurs once the mineral resource at a working mine is exhausted, . 40%, and Ghana requires 5-10% of the estimated cleanup costs to be provided.  .. 31,000 tonnes of molybdenum, 31.7 tonnes of gold, 336 tonnes of silver, and 27 .. 2005, A. A. Balkema Publishers, a member of Taylor & Francis Group:.