Production Lifetime

  • Friedrich-Wilhelm Wellmer


The preceding chapters demonstrated how net returns per ton of ore can be calculated. They are, of course, only dependent on ore grades and not on the amount of ore mined. When considering the production costs, the output per unit of time must also be taken into account. The greater the output per day or per year, the lower are the costs per ton of ore. This effect is called “economics of scale”.


Gold Mining Quartz Vein Carbon Capture Porphyry Copper Porphyry Copper Deposit 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • Friedrich-Wilhelm Wellmer
    • 1
  1. 1.Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)Alfred-Bentz-HausHannover 51Federal Republic of Germany

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