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Author Rendu, Jean-Michel, 1944- author.

Title An introduction to cut-off grade estimation / by Jean-Michel Rendu.

Publication Info. Englewood, CO : Published by Society for Mining, Metallurgy, and Exploration, Inc., 2014.

Item Status

Edition Second edition.
Description 1 online resource
Physical Medium polychrome
Description text file
Bibliography Includes bibliographical references and index.
Contents Cover; Title Page; Copyright; Contents; Preface to 2014 Edition; Preface to 2008 Edition; Chapter 1: INTRODUCTION; Chapter 2:GENERAL CONCEPTS; Mathematical Formulation: UtilityFunction; Cut-off Grade and Grade-Tonnage Relationship; Direct Profit and Loss: Udir(x); Net Present Value: NPVi; Opportunity Costs and Benefits: Uopp(x); Other Costs and Benefits: Uoth(x); Cut-off Grade and Blending Strategy; Chapter 3:BREAKEVEN CUT-OFF GRADE; Cut-off Grade Between Ore and Waste; Cut-off Grades in Open Pit Mines; Cut-off Grades in Underground Mines; Cut-off Grade Between Two Processes.
Cut-off Grade with Variable RecoveryConstant Tail Model of Variable Recovery; Breakeven Cut-off Grade and Polymetallic Deposits; OpportunityCost of Not Using the Optimum Cut-off Grade; Cut-off Grade and Low-Grade Stockpiles; Cut-off Grade andOptimization of Processing Plant Operating Conditions; Chapter 4:CAPACITY CONSTRAINTS AND OPPORTUNITY COSTS; WhenMarginal Analysis No Longer Applies: A Gold Leaching Operation; Capacity Constraints and Increase in Cut-off Grade; DecreasingCut-off Grade over Time: A Strategic Objective; Cut-off Grade Below Marginal Cut-off Grade.
Cut-offGrade Optimization with Opportunity Costs: Practical ConsiderationsChapter 5:GEOLOGIC CONSTRAINTS AND OPPORTUNITY COSTS; Cut-off Grade When Processing Capacity Is Fixed; Cut-off Grade When Mining Capacity Is Fixed; Cut-off Grade When Volume of Sales Is Fixed; Releasing Capacity Constraints: A Base Metal Example; Chapter 6:CUT-OFF GRADE AND MINE PLANNING; Open Pit Mine: Economic Valuation of a Pushback; Underground Mine: Economic Valuation of a Stope; Similarities BetweenOpen Pit and Underground Mine Planning; Block and Panel Caving.
Relationship Between Mine Selectivity, Deposit Modeling, Ore Control, and Cut-off GradeChapter 7:WHICH COSTS SHOULD BE INCLUDED IN CUT-OFF GRADE CALCULATIONS?; General Considerations; HowSpecific Costs Influence Cut-off Grade Calculations; Other Costs and Benefits; Chapter 8:BLENDING STRATEGY; Blending Two Material Types; Blending Three Material Types; Blending to Maximize Tonnage; RemarksConcerning an Increasingly Complex Blending Problem; Chapter 9:CLOSING REMARKS; APPENDIX A; Example 1. Net Present Value of Constant Cash Flow: Proofof Formula.
Example 2.Net Present Value of Perpetuity Cash Flow: Proof of FormulaExample 3. Opportunity Cost of Mining a Peripheral Deposit; Example 4. Simplified Equation to Estimate Opportunity Cost: Verification of First-Order Approximation; Example5. Opportunity Cost of Not Using the Optimal Cut-off Grade in a Copper Mine; Example 6. Stockpilingand Cut-off Determination in a Copper Mine; Example7. Properties of Constant-Metric-Tons Curves in Blending Diagrams; LIST OF SYMBOLS; BIBLIOGRAPHY; INDEX; ABOUT THE AUTHOR; Back Cover.
Summary An Introduction to Cut-off Grade Estimation examines one of the most important calculations in the mining industry. Cut-off grades are essential to determining the economic feasibility and mine life of a project. Profitability and socioeconomic impact of mining operations are influenced by the choice of cut-off grades. Cut-off grades play a key role in estimating mineral reserves that can be publicly reported.
Local Note eBooks on EBSCOhost EBSCO eBook Subscription Academic Collection - North America
Subject Ores -- Grading.
Ores -- Grading.
Ores.
Ores -- Sampling and estimation.
Ores -- Sampling and estimation.
Genre/Form Electronic books.
Other Form: Print version: Rendu, Jean-Michel, 1944- author. Introduction to cut-off grade estimation. Second edition 9780873353939 (DLC) 2013043932 (OCoLC)863044201
ISBN 9780873353946 (electronic book)
0873353943 (electronic book)
9780873353939
0873353935