1.

Record Nr.

UNINA9910807135503321

Autore

Rendu J.-M

Titolo

An introduction to cut-off grade estimation [[electronic resource] /] / by Jean-Michel Rendu

Pubbl/distr/stampa

Littleton, Colo., : Society for Mining, Metallurgy, and Exploration, 2008

ISBN

1-61344-066-9

0-87335-284-X

Edizione

[1st ed.]

Descrizione fisica

1 online resource (115 p.)

Disciplina

622/.7

Soggetti

Ores - Grading

Ores - Sampling and estimation

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Cover; Title; Copyright; Contents; Preface; CHAPTER 1: Introduction; CHAPTER 2: General Principles; CHAPTER 3: Minimum Cut-off Grades; CHAPTER 4: Cut-off Grade for Polymetallic Deposits; CHAPTER 5: Cut-off Grade and Optimization of Processing Plant Operating Conditions; CHAPTER 6: Cut-off Grade and Mine Planning-Open Pit and Underground Selective Mining; CHAPTER 7: Cut-off Grade and Mine Planning- Block and Panel Caving; CHAPTER 8: Which Costs Should Be Included in Cut-off Grade Calculations?; CHAPTER 9: When Marginal Analysis No Longer Applies: A Gold Leaching Operation

CHAPTER 10: Mining Capacity and Cut-off Grade When Processing Capacity Is FixedCHAPTER 11: Processing Capacity and Cut-off Grade When Mining Capacity Is Fixed; CHAPTER 12: Mining and Processing Capacity and Cut-off Grade When Sales Volume Is Fixed; CHAPTER 13: Releasing Capacity Constraints: A Base Metal Example; CHAPTER 14: Relationship Between Mine Selectivity, Deposit Modeling, Ore Control, and Cut-off Grade; CHAPTER 15: Conclusions; Bibliography; Symbols; About the Author

Sommario/riassunto

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. Increased cut-off grades can reduce political risks by ensuring higher financial returns over a shorter period of time. Conversely, lower



cut-off grades may increase project life with longer economic benefits to shareowners, employees, and local communities. Cut-off grades also impact reported reserves, which are closely monitored by stock exchanges and regulatory agencies. Author Dr.