Progressive closure planning at the Magellan Mine-providing some certainty in uncertain times: a case study

摘要

Closure planning in the mining industry has been typically left until near the end of mine life, often leaving little time, financial provision or resources for effective closure planning and implementation. Ideally proponents would commit resources and time for closure planning from the commencement of operations to optimise financial return through effective planning and enhanced efficiency. Limitations associated with closing a mine in an unplanned manner include inadequate financial provision, substandard and expensive rehabilitation, and limited access to adequate equipment and materials. The lack of time to trial rehabilitation methods, the absence of corporate memory due to personnel departures, coupled with an extended post-closure monitoring and management period, -will all contribute to prolonged tenement relinquishment and continuing liability for proponents.