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Showing: 1 to 10 of 20500 matches for "Off Grade 3"  Page   1   2   3   4   5   6   7   8   9  next TITLE Gold Mine Evaluation Some Evaluation Concepts  SUMMARY ... 2. The nature and grade of the mineralisation being sampled. 3. The background grade. 4. The economic cut off grade. L Cue 2 I - I, ca.. 2 I - I, L ... PUBLISHED 1987 TITLE Mine Profit Enhancement Through Cut-Off Grade Management  SUMMARY ... This tax will have the effect of reducing the present value of the surpluses which will then tend to depress the cut-off grade below those applied in Table 3. ... AUTHOR Hunter M M PUBLISHED 1992 TITLE Tonnes, Grade and Economics û The ZC Mine Experience 1985-1988  SUMMARY ... of head grade accompanying these changes from a grade of about 20 ... 3. During the same interval the ore reserves and resources ... at a 10% Pb + Zn cut-off was 53.8 ... PUBLISHED 1990 TITLE In-Situ Leaching of Oxide Gold Deposits  SUMMARY ... In Tables 2 and 3, the effect of systematic variations in solution contact period and well diameters on cut-off grade, per-tax rate of ... PUBLISHED 1991 TITLE The Effect of Open Pit Scale Economies on the Mt Leyshon Gold Mine  SUMMARY ... TABLE 3 Ore resource models established September 1991 Mt Leyshon Gold Mine. cut offgrades as indicated. Model ame Selective Resource Grade Base of Cut Off (g/t ... AUTHOR Slight M ; Hodkinson I PUBLISHED 1992 TITLE Lead-zinc Ore Mining at the Isa Mine of Mount Isa Mines Limited, Mount Isa, Queensland  SUMMARY ... enough together to bulk up to above the cut-off grade. ... of pyrite, and tend to be relatively low grade. The footwall 'Racecourse' orebodies are 3 m to 25 m thick ... PUBLISHED 1993 TITLE Pit-Blend Optimisation - A Case Study in Iron Ore  SUMMARY ... 3. The third technique produced the best result. ... Mol, 0 and Gillies, S, 1984, Cut-off grade determination for mines producing direct-shipping iron ore, Proc ... AUTHOR Piotto P PUBLISHED 1996 TITLE A Novel Approach to Estimate the Gap Between theáMiddle- and Short-Term Plans  SUMMARY ... t P 3 production capacity of phase 3 in t c 1 haulage cost c 2 load plus haulage cost rhdl maximum rehandle δ tolerance G St.CO low grade stock c ut-off G tar ... AUTHOR J Ortiz PUBLISHED 2011 TITLE Ore Dilution Sources in Underground Mines - Interpretation and Evalution Methods  SUMMARY ... (3) (3a) Geological reserves (T g ) The tonnage of ore contained within the natural geological limits or drawn to a specified cut-off grade. ... AUTHOR Szymanski J PUBLISHED 1995 TITLE Chlorine Based In-Situ Leaching of Alluvial Gold Deposits  SUMMARY ... The potential exists for a significant improvement in fine gold recovery, a cut-off grade of less than 0.2 glm 3 and reduced mine life through the potential ... PUBLISHED 1992 Showing: 1 to 10 of 20500 matches for "Off Grade 3"  Page   1   2   3   4   5   6   7   8   9  next Search Again