Table of contents for Evaluation of mineral reserves : a simulation approach / by Andr‚e G. Journel and Phaedon C. Kyriakidis.


Bibliographic record and links to related information available from the Library of Congress catalog. Note: Contents data are machine generated based on pre-publication information provided by the publisher. Contents may have variations from the printed book or be incomplete or contain other coding.


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Contents
Preface iii
I Introduction 3
I.1 St at ement of t he Problem and Not at ion . . . . . . . . . . . . 6
I.2 Perfect Selection . . . . . . . . . . . . . . . . . . . . . . . . . 10
I.3 Act ual Select ion . . . . . . . . . . . . . . . . . . . . . . . . . 11
I.4 Estimation and Simulation . . . . . . . . . . . . . . . . . . . 14
I.5 Scope of t he Book . . . . . . . . . . . . . . . . . . . . . . . . 20
II The Simulation Approach 23
II.1 Point Grade Simulation . . . . . . . . . . . . . . . . . . . . . 24
II.2 Simulat ion of SMU Grades . . . . . . . . . . . . . . . . . . . 26
II.3 Simulat ion of Select ion Crit eria . . . . . . . . . . . . . . . . . 28
II.4 Simulation of Recovery Functions . . . . . . . . . . . . . . . . 30
II.5 Re.ections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
IIIThe Volume-Variance Correction Alternative 35
III.1 Indicator Kriging . . . . . . . . . . . . . . . . . . . . . . . . . 36
III.2 Volume-Variance Correct ion . . . . . . . . . . . . . . . . . . . 39
III.3 Permanence of Distribution . . . . . . . . . . . . . . . . . . . 42
III.4 Estimates of Recovery Functions . . . . . . . . . . . . . . . . 46
III.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
IV The Reference Data Sets 49
IV.1 The Ely Reference Data Set . . . . . . . . . . . . . . . . . . . 50
IV.2 Reference PerfectSelect ion . . . . . . . . . . . . . . . . . . . 60
IV.3 Reference Actual Selection . . . . . . . . . . . . . . . . . . . . 65
IV.3.1 Blasthole Data Generation . . . . . . . . . . . . . . . 65
IV.3.2 Kriging from Future Blasthole Data . . . . . . . . . . 69
IV.3.3 Actual Selection Based on Kriging Estimates . . . . . 70
IV.4 The Ely2 Reference Data Set . . . . . . . . . . . . . . . . . . 81
IV.4.1 Generation of the Ely2 Reference Data . . . . . . . . . 81
IV.4.2 Ely2: PerfectSelect ion . . . . . . . . . . . . . . . . . . 82
IV.4.3 Ely2: Actual Selection . . . . . . . . . . . . . . . . . . 84
v
vi CONTENTS
IV.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
V Simulation of Recovery: Application 105
V.1 Simulation of Point Support Grades . . . . . . . . . . . . . . 105
V.1.1 Mean Grade Uncertainty Assessment . . . . . . . . . . 107
V.2 Simulat ion of Perfect Select ion . . . . . . . . . . . . . . . . . 117
V.3 Simulat ion of Act ual Select ion. . . . . . . . . . . . . . . . . . 123
V.4 Applicat ion t ot he Ely2 Dat aSet . . . . . . . . . . . . . . . . 145
V.4.1 Ely2: Simulation of Point Support Grades . . . . . . . 145
V.4.2 Ely2: Simulation of Perfect Selection . . . . . . . . . . 147
V.4.3 Ely2: Simulation of Actual Selection . . . . . . . . . . 147
V.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
VI Estimation of Recovery via VVC 163
VI.1 Volume-Variance Correct ion (VVC) . . . . . . . . . . . . . . 163
VI.2 VVC Before Compositing: Results . . . . . . . . . . . . . . . 166
VI.3 VVC After Compositing: Results . . . . . . . . . . . . . . . . 176
VI.4 Comparison with Simulation Results . . . . . . . . . . . . . . 178
VI.5 VVC Result sfor Ely2 . . . . . . . . . . . . . . . . . . . . . . 181
VI.6 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
VIIConclusions 189
A List of Acronyms 201
B Common Notation 203
Bibliography 207
Index 214
 

Library of Congress Subject Headings for this publication: Mines and mineral resources Valuation Statistical methods, Mining geology Statistical methods