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Description
Developments in Economic Geology, 5: Principles of Induced Polarization for Geophysical Exploration focuses on the principles, methodologies, and approaches involved in induced polarization (IP), including anisotropism, electromagnetic coupling, and electrical circuits.
The book first takes a look at resistivity principles, theory of IP, and laboratory work in IP. Concerns cover electrical measurements of rocks, anisotropism, early part of decay curve and the comparison with frequency effects, electrical models of induced polarization, electrical polarization, resistivities of earth materials, and resistivity exploration methods. The manuscript then elaborates on IP field equipment, telluric noise and electromagnetic coupling, IP field surveying, and drill-hole and underground surveying and the negative IP effect. Discussions focus on differences between surface and subsurface methods, current-sending system in the field, telluric (earth) currents, electromagnetic coupling, design considerations, coupling of electrical circuits, design considerations, and signal-generating system.
The manuscript ponders on the complex-resistivity method and interpretation of induced-polarization data, including grade estimation of mineralization using the IP method, complex-resistivity survey, signal detection capabilities of the complex-resistivity method, and disadvantages of the complex-resistivity method.
The text is a valuable source of information for researchers wanting to study induced polarization.
Table of Contents
Preface
Acknowledgments
1. Introduction
A Historical Summary of IP Research
The IP Effect
IP Response
The Decay Curve
IP Measurement
The Basic IP Measurement △ V/V
Phase-Angle IP Measurement
Errors
Units Used in IP Surveying
The Glossary
2. Resistivity Principles
Resistivity Theory
Ohm's Law
Three-Dimensional Resistivity
Resistivity and Conductivity
Potential Field of a Current Electrode Pair
Refraction of Current Flow Lines
Equipotential Surfaces
Resistivity Anisotropy
Paradox of Anisotropy
Superposition and Reciprocity
Resistivity Type Curves by the Method of Images
Resistivity of Earth Materials
Resistivity Properties of Minerals
Electrical Conduction in Rocks
Resistivity of Mineralized Rocks
Resistivity Exploration Methods
Resistivity Equipment
Self-Potential
Resistivity Sounding
Resistivity Profiling
Pseudosection Plotting
3. Theory of Induced Polarization
Electrochemical Theory
The Electrode
Overvoltage
The Double Layer
Faradaic and Nonfaradaic Paths
Warburg Impedance
Membrane Polarization
Applications of Electrochemical Theory
Dielectric Constant
Electrical Models of Induced Polarization
Equivalent Circuit
The Decay Curve
Field of a Dipole
Details
- Language:
- English
- Copyright:
- © 1976
- Published:
- 1st January 1984
- Imprint:
- Elsevier Science
- eBook ISBN:
- 9780444599872
- Print ISBN:
- 9780444414816
About the author
Reviews
@qu:This book... steers an amazingly clear path through one of the more controversial subjects in exploration geophysics... of considerable completeness and scope... should be mandatory reading for all mining geologists, geophysicists and exploration managers. There are very few specialists indeed who could not learn at least a few things from this book.
@source: Geophysics