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Mining Geophysics
About This Book
Methods in Geochemistry and Geophysics, 3: Mining Geophysics focuses on the geophysical methods of ore prospecting, including radioactivity, collection of geophysical data, and field measurements. The manuscript first highlights the role of geophysics in ore prospecting and the general aspects of collection and presentation of geophysical data. Discussions focus on classification of geophysical methods, radioactivity, collection of preliminary information, field measurement, and isoanomaly curves. The text then surveys magnetic and self-potential methods, as well as the general magnetic properties of rocks, geomagnetic field, magnetometers, transverse magnetization, and measurement of self-potentials. The publication ponders on electromagnetic, electrical, and induced polarization methods. Topics include classification of electromagnetic methods; use of two frequencies in electromagnetic prospecting; moving source-receiver methods; electrode configurations in resistivity methods; and resistivity measurements in boreholes. The text also examines gravity, seismic, and airborne magnetic and electromagnetic methods. The manuscript is a valuable source of information for geologists and mining engineers.
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Table of contents
- Front Cover
- Mining Geophysics
- Copyright Page
- Table of Contents
- Dedication
- Preface
- CHAPTER 1. The Role of Geophysics in Ore Prospecting
- CHAPTER 2. General Aspects of the Collection and Presentation of Geophysical Data
- CHAPTER 3. Magnetic Methods
- CHAPTER 4. The Self-Potential Method
- CHAPTER 5. Electromagnetic Methods
- CHAPTER 6. Electrical Methods
- CHAPTER 7. Induced Polarization Methods
- CHAPTER 8. Gravity Methods
- CHAPTER 9. Seismic Methods
- CHAPTER 10. Radioactive Methods
- CHAPTER 11. Airborne Magnetic and Electromagnetic Methods
- CHAPTER 12. Combination of Geophysical Methods
- APPENDIX 1: Simple Method of Determining the Magnetic Susceptibility and Remanence of Approximately Spherical Rock and Ore Samples
- APPENDIX 2: Magnetic Anomaly of Pole Systems
- APPENDIX 3: The Magnetic Field of a Large Rectangular Loop Carrying an Electric Current
- APPENDIX 4: Semi-absolute Calculation of the Electromagnetic Field Components from Turam Reduced Ratios and Phase Differences
- APPENDIX 5: Electric Potential Due to a Point and a Line Current Electrode Placed on the Surface of a Homogeneous Ground
- APPENDIX 6: Method of Images
- APPENDIX 7: Gravity anomalies
- APPENDIX 8: Depth Estimates of Some Simple Mass Shapes
- APPENDIX 9: Notes on the Master Curves in Fig.117 for Total Field Magnetic Anomalies
- References
- Index