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Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1880 to 1908 / / tabulated by F.W. Clarke
| Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1880 to 1908 / / tabulated by F.W. Clarke |
| Autore | Clarke Frank Wigglesworth <1847-1931, > |
| Pubbl/distr/stampa | Washington, D.C. : , : Department of the Interior, United States Geological Survey, , 1910 |
| Descrizione fisica | 1 online resource (xii, 323 pages) |
| Collana | Geological Survey bulletin |
| Soggetto topico |
Rocks - Analysis
Ores - Sampling and estimation Mineralogy, Determinative Analytical geochemistry |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910708179303321 |
Clarke Frank Wigglesworth <1847-1931, >
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| Washington, D.C. : , : Department of the Interior, United States Geological Survey, , 1910 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1914-36 / / tabulated by Roger C. Wells
| Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1914-36 / / tabulated by Roger C. Wells |
| Autore | Wells Roger Clark <1877-1944, > |
| Pubbl/distr/stampa | [Washington, D.C.] : , : United States Department of the Interior, Geological Survey, , 1937 |
| Descrizione fisica | 1 online resource (x, 134 pages) |
| Collana | Bulletin / United States Department of the Interior, Geological Survey |
| Soggetto topico |
Rocks - Analysis
Ores - Sampling and estimation Analytical chemistry - United States Chemistry, Analytic |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Analyses of rocks and minerals, 1914-36 |
| Record Nr. | UNINA-9910704196803321 |
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Wells Roger Clark <1877-1944, >
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| [Washington, D.C.] : , : United States Department of the Interior, Geological Survey, , 1937 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Analytical precision of one-sixth order semiquantitative spectrographic analysis / / by J. M. Motooka and D. J. Grimes
| Analytical precision of one-sixth order semiquantitative spectrographic analysis / / by J. M. Motooka and D. J. Grimes |
| Autore | Motooka J. M. |
| Pubbl/distr/stampa | [Reston, Virginia] : , : United States Department of the Interior, Geological Survey, , 1976 |
| Descrizione fisica | 1 online resource (iii, 25 pages) : illustrations |
| Collana | Geological Survey circular |
| Soggetto topico |
Ores - Sampling and estimation
Spectrum analysis |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910711744103321 |
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Motooka J. M.
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| [Reston, Virginia] : , : United States Department of the Interior, Geological Survey, , 1976 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Applied mineral inventory estimation / / Alastair J. Sinclair, Garston H. Blackwell [[electronic resource]]
| Applied mineral inventory estimation / / Alastair J. Sinclair, Garston H. Blackwell [[electronic resource]] |
| Autore | Sinclair Alastair J (Alastair James), <1935-> |
| Pubbl/distr/stampa | Cambridge : , : Cambridge University Press, , 2002 |
| Descrizione fisica | 1 online resource (xviii, 381 pages) : digital, PDF file(s) |
| Disciplina | 669/.92 |
| Soggetto topico | Ores - Sampling and estimation |
| ISBN |
1-107-08555-1
1-107-12144-2 1-280-42993-3 9786610429936 0-511-17749-6 0-511-04115-2 0-511-14786-4 0-511-54599-1 1-60119-731-4 0-511-33013-8 0-511-04672-3 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover; Half-title; Title; Copyright; Contents; Preface; Acknowledgments; 1 Mineral Inventory: An Overview; 2 Geologic Control of Mineral Inventory Estimation; 3 Continuity; 4 Statistical Concepts in Mineral Inventory Estimation: An Overview; 5 Data and Data Quality; 6 Exploratory Data Evaluation; 7 Outliers; 8 An Introduction to Geostatistics; 9 Spatial (Structural) Analysis: An Introduction to Semivariograms; 10 Kriging; 11 Global Resource Estimation; 12 Grade...Tonnage Curves; 13 Local Estimation of Resources /Reserves; 14 An Introduction to Conditional Simulation; 15 Bulk Density
16 Toward Quantifying Dilution17 Estimates and Reality; 18 Resource/Reserve Classification; 19 Decisions from Alternative Scenarios: Metal Accounting; Appendices; Appendix 1 British and International Measurement Systems: Conversion Factors; Appendix 2 U.S. Standard Sieves; Appendix 3 Drill-Hole and Core Diameters; Bibliography; Index |
| Record Nr. | UNINA-9910449833303321 |
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Sinclair Alastair J (Alastair James), <1935->
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| Cambridge : , : Cambridge University Press, , 2002 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Applied mineral inventory estimation / / Alastair J. Sinclair, Garston H. Blackwell [[electronic resource]]
| Applied mineral inventory estimation / / Alastair J. Sinclair, Garston H. Blackwell [[electronic resource]] |
| Autore | Sinclair Alastair J (Alastair James), <1935-> |
| Pubbl/distr/stampa | Cambridge : , : Cambridge University Press, , 2002 |
| Descrizione fisica | 1 online resource (xviii, 381 pages) : digital, PDF file(s) |
| Disciplina | 669/.92 |
| Soggetto topico | Ores - Sampling and estimation |
| ISBN |
1-107-08555-1
1-107-12144-2 1-280-42993-3 9786610429936 0-511-17749-6 0-511-04115-2 0-511-14786-4 0-511-54599-1 1-60119-731-4 0-511-33013-8 0-511-04672-3 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover; Half-title; Title; Copyright; Contents; Preface; Acknowledgments; 1 Mineral Inventory: An Overview; 2 Geologic Control of Mineral Inventory Estimation; 3 Continuity; 4 Statistical Concepts in Mineral Inventory Estimation: An Overview; 5 Data and Data Quality; 6 Exploratory Data Evaluation; 7 Outliers; 8 An Introduction to Geostatistics; 9 Spatial (Structural) Analysis: An Introduction to Semivariograms; 10 Kriging; 11 Global Resource Estimation; 12 Grade...Tonnage Curves; 13 Local Estimation of Resources /Reserves; 14 An Introduction to Conditional Simulation; 15 Bulk Density
16 Toward Quantifying Dilution17 Estimates and Reality; 18 Resource/Reserve Classification; 19 Decisions from Alternative Scenarios: Metal Accounting; Appendices; Appendix 1 British and International Measurement Systems: Conversion Factors; Appendix 2 U.S. Standard Sieves; Appendix 3 Drill-Hole and Core Diameters; Bibliography; Index |
| Record Nr. | UNINA-9910777382103321 |
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Sinclair Alastair J (Alastair James), <1935->
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| Cambridge : , : Cambridge University Press, , 2002 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Applied mineral inventory estimation / / Alastair J. Sinclair, Garston H. Blackwell [[electronic resource]]
| Applied mineral inventory estimation / / Alastair J. Sinclair, Garston H. Blackwell [[electronic resource]] |
| Autore | Sinclair Alastair J (Alastair James), <1935-> |
| Pubbl/distr/stampa | Cambridge : , : Cambridge University Press, , 2002 |
| Descrizione fisica | 1 online resource (xviii, 381 pages) : digital, PDF file(s) |
| Disciplina | 669/.92 |
| Soggetto topico | Ores - Sampling and estimation |
| ISBN |
1-107-08555-1
1-107-12144-2 1-280-42993-3 9786610429936 0-511-17749-6 0-511-04115-2 0-511-14786-4 0-511-54599-1 1-60119-731-4 0-511-33013-8 0-511-04672-3 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover; Half-title; Title; Copyright; Contents; Preface; Acknowledgments; 1 Mineral Inventory: An Overview; 2 Geologic Control of Mineral Inventory Estimation; 3 Continuity; 4 Statistical Concepts in Mineral Inventory Estimation: An Overview; 5 Data and Data Quality; 6 Exploratory Data Evaluation; 7 Outliers; 8 An Introduction to Geostatistics; 9 Spatial (Structural) Analysis: An Introduction to Semivariograms; 10 Kriging; 11 Global Resource Estimation; 12 Grade...Tonnage Curves; 13 Local Estimation of Resources /Reserves; 14 An Introduction to Conditional Simulation; 15 Bulk Density
16 Toward Quantifying Dilution17 Estimates and Reality; 18 Resource/Reserve Classification; 19 Decisions from Alternative Scenarios: Metal Accounting; Appendices; Appendix 1 British and International Measurement Systems: Conversion Factors; Appendix 2 U.S. Standard Sieves; Appendix 3 Drill-Hole and Core Diameters; Bibliography; Index |
| Record Nr. | UNINA-9910827865403321 |
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Sinclair Alastair J (Alastair James), <1935->
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| Cambridge : , : Cambridge University Press, , 2002 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Effect of size-biased sampling on resource predictions from the three-part method for quantitative mineral resource assessment : a case study of the gold mines in the Timmins-Kirkland Lake area of the Abitibi Greenstone Belt, Canada / / by Karl J. Ellefsen
| Effect of size-biased sampling on resource predictions from the three-part method for quantitative mineral resource assessment : a case study of the gold mines in the Timmins-Kirkland Lake area of the Abitibi Greenstone Belt, Canada / / by Karl J. Ellefsen |
| Autore | Ellefsen Karl |
| Pubbl/distr/stampa | Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2019 |
| Descrizione fisica | 1 online resource (v, 15 pages) : color illustrations, color maps + + scripts |
| Collana | Scientific investigations report |
| Soggetto topico |
Ores - Sampling and estimation
Ores - Abitibi Greenstone Belt (Ont. and Québec) - Sampling and estimation Gold mines and mining - Abitibi Greenstone Belt (Ont. and Québec) Gold mines and mining - Ontario - Kirkland Lake |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Effect of size-biased sampling on resource predictions from the three-part method for quantitative mineral resource assessment |
| Record Nr. | UNINA-9910716668603321 |
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Ellefsen Karl
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| Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2019 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Estimating ore grade using evolutionary machine learning models / / edited by Mohammad Ehteram [and three others]
| Estimating ore grade using evolutionary machine learning models / / edited by Mohammad Ehteram [and three others] |
| Pubbl/distr/stampa | Gateway East, Singapore : , : Springer, , [2023] |
| Descrizione fisica | 1 online resource (109 pages) |
| Disciplina | 006.31 |
| Soggetto topico |
Machine learning
Ores - Sampling and estimation |
| ISBN | 981-19-8106-X |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Preface -- Contents -- List of Figures -- List of Tables -- 1 The Necessity of Grade Estimation -- 1.1 Introduction -- 1.1.1 The Importance of Ore Grade Estimation -- 1.2 Conventional Ore Grade Estimation Models -- 1.3 New Models for Estimating Ore Grade -- 1.4 General Remarks -- References -- 2 A Review of Modeling Approaches -- 2.1 Introduction -- 2.1.1 A Review of Studies of Applying MLMs for Estimating Ore Grade -- 2.2 Advantages and Disadvantages of Ore Grade Estimation Models -- 2.3 Shortcomings of Previous Studies -- 2.4 General Remarks -- References -- 3 Structure of Different Kinds of ANN Models -- 3.1 Introduction -- 3.1.1 A Review of Studies of Applying MLP, RBFNN, GMDH, and ELM for Estimating Different Variables in Geosciences and Mining Engineering, and Other Fields -- 3.2 Structure of Multi-Layer Perceptron Models -- 3.3 Structure of RBFNN Models -- 3.4 Structure of Extreme Learning Machine (ELM) Models -- 3.5 Structure of Group Method of Data Handling Neural Networks -- 3.6 General Remarks -- References -- 4 Optimization Algorithms and Classical Training Algorithms -- 4.1 Introduction -- 4.1.1 Backpropagation Algorithm -- 4.2 Levenberg-Marquardt Algorithm (LM) -- 4.3 Scaled Conjugate Gradient Algorithm -- 4.4 Variable Learning Rate Algorithm -- 4.5 Optimization Algorithm -- 4.5.1 Salp Swarm Algorithm (SSA) -- 4.5.2 Sine Cosine Algorithm (SCA) -- 4.5.3 Structure of Shark Swarm Optimization -- 4.5.4 Structure of Naked Mole-Rat (NMR) Algorithm -- 4.5.5 Structure of Particle Swarm Optimization -- 4.5.6 Structure of Genetic Algorithm for Solving Optimization Problems -- 4.6 Evolutionary Multi-Layer Perceptron (MLP) and Radial Basis Function Neural Network Models (RBFNN) -- 4.7 Evolutionary Extreme Learning Machine (ELM) -- 4.8 Evolutionary Group Method of Data Handling Neural Networks (GMDH) -- 4.9 General Remarks -- References.
5 Predicting Aluminum Oxide Grade -- 5.1 Introduction -- 5.1.1 Structure of Bayesian Model Averaging -- 5.2 Case Study -- 5.3 Results -- 5.3.1 Determination of Values of Random Parameters -- 5.3.2 Investigation of the Accuracy of Models for Predicting Ore Grade -- 5.3.3 Discussion -- 5.4 Conclusion -- References -- 6 Predicting Silicon Dioxide Grade -- 6.1 Introduction -- 6.1.1 Case Study -- 6.2 Results -- 6.2.1 Sensitivity Analysis for Choice of Algorithm Parameters -- 6.2.2 Investigation of the Accuracy of Models -- 6.3 Discussion -- 6.4 General Remarks -- References -- 7 Predicting Copper Ore Grade -- 7.1 Introduction -- 7.1.1 Kriging Method -- 7.2 Hybrid ELM and Kriging Method -- 7.3 Case Study -- 7.4 Part A -- 7.4.1 Results of Part A -- 7.5 Part B -- 7.5.1 Results for Part B -- 7.6 General Remarks -- References -- 8 Estimating Iron Ore Grade -- 8.1 Introduction -- 8.2 Part A -- 8.2.1 Case Study -- 8.2.2 Results -- 8.3 Part B -- 8.3.1 Generalized Likelihood Uncertainty Estimation -- 8.4 Analysis of Uncertainty Results -- 8.5 Discussion on the GMDH Models -- 8.6 General Remarks -- References -- 9 Conclusion and General Remarks for Estimating Ore Grade -- 9.1 Introduction -- 9.1.1 Final Results -- 9.1.2 Suggestions for the Future Studies -- References. |
| Record Nr. | UNINA-9910637736603321 |
| Gateway East, Singapore : , : Springer, , [2023] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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An introduction to cut-off grade estimation / / by Jean-Michel Rendu
| An introduction to cut-off grade estimation / / by Jean-Michel Rendu |
| Autore | Rendu Jean-Michel <1944-> |
| Edizione | [Second edition.] |
| Pubbl/distr/stampa | Englewood, CO : , : Published by Society for Mining, Metallurgy, and Exploration, Inc., , 2014 |
| Descrizione fisica | 1 recurso en línea (170 p.) |
| Disciplina | 622/.7 |
| Soggetto topico |
Ores - Grading
Ores - Sampling and estimation |
| Soggetto genere / forma | Electronic books. |
| ISBN | 0-87335-394-3 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
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 |
| Record Nr. | UNINA-9910464487603321 |
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Rendu Jean-Michel <1944->
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| Englewood, CO : , : Published by Society for Mining, Metallurgy, and Exploration, Inc., , 2014 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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An introduction to cut-off grade estimation / / by Jean-Michel Rendu
| An introduction to cut-off grade estimation / / by Jean-Michel Rendu |
| Autore | Rendu Jean-Michel <1944-> |
| Edizione | [Second edition.] |
| Pubbl/distr/stampa | Englewood, CO : , : Published by Society for Mining, Metallurgy, and Exploration, Inc., , 2014 |
| Descrizione fisica | 1 recurso en línea (170 p.) |
| Disciplina | 622/.7 |
| Soggetto topico |
Ores - Grading
Ores - Sampling and estimation |
| ISBN | 0-87335-394-3 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
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 |
| Record Nr. | UNINA-9910789152503321 |
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Rendu Jean-Michel <1944->
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| Englewood, CO : , : Published by Society for Mining, Metallurgy, and Exploration, Inc., , 2014 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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