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Unformatted text preview: sents high grade (ore grade) values, and 50,000 ppb Pt and Pd (5g/t) represent high grade (ore grade) values, what are the approximate R- factors required to achieve such grades in: a. Komatiite- hosted deposits. b. Flood basalt- hosted deposits. c. Layered intrusion- hosted deposits. 3) Which commodities require higher R- factors to achieve ore grades – Ni- Cu or Pt- Pd? Why? Explain. 4) Cre...
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This document was uploaded on 03/06/2014 for the course ES 4211 at Memorial University.

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