Home | About Us | My Account | Help | Shopping Cart:
0 Items 

  Home > Books >

Placer Examination Principles and Practice
Placer Examination Principles and Practice


 
Our Price: $14.95

Product Code: B7400
Qty:

Description
 
Contents: PART I - REVIEW OF PLACER THEORY AND GEOLOGY. 1.Placers Defined 2.Study of Placers - General 3.Sources of Valuable Mineral 4.Weathering and Release Processes 5.Stream Processes Related to Placers 6.Concentration of Valuable Minerals 7.Preservation of the Deposit PART II - TYPES OF PLACERS 1.Residual Placers 2.Eluvial Placers 3.Stream Placers 4.Bench Placers 5.Flood Gold Deposits 6.Desert Placers 7.Tertiary Gravels 8.Miscellaneous Types. PART III - SAMPLING AND EVALUATION 1.General Considerations 2.Sampling Guides 3.Sampling Methods 4.Special Problems 5.Uncased or Small-diameter Drill Holes 6. Salting 7. When Sampling Fails PART IV - SAMPLE WASHING EQUIPMENT 1. General Considerations 2. Miner's Pan 3.Sluice Box 4.Rockers 5.Special Machines 6.Dry Washers PART V - PANNING AND ASSAY PROCEDURES 1.Panning 2.General Notes on Panning with Suggestions for Improving Procedure 3.Fire Assay of Placer Samples - Misleading Results 4.Procedure for Determining Recoverable Gold in Placer Samples PART VI - NOTES ON GENERAL PRACTICE 1.Description of Samples 2.Reduction of Sample Volumes 3.Reporting Values 4.Cost Estimates 5.New or Unproven Processes PART VII - CHECK LIST FOR PLACER INVESTIGATIONS 1.General Considerations2. Field Guide and Check List (example) PART VIII - GLOSSARY OF PLACERS TERMS. APPENDIX