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Principles of Electromagnetic Methods in Surface Geophysics
1st Edition, Volume 45 - June 27, 2014
Authors: Alex Kaufman, Dimitry Alekseev, Michael Oristaglio
Language: English
Hardback ISBN:9780444538291
9 7 8 - 0 - 4 4 4 - 5 3 8 2 9 - 1
eBook ISBN:9780444538307
9 7 8 - 0 - 4 4 4 - 5 3 8 3 0 - 7
Principles of Electromagnetic Methods in Surface Geophysics contains information about the theory of electromagnetic fields in a conducting media. It describes the theoretic…Read more
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Principles of Electromagnetic Methods in Surface Geophysics contains information about the theory of electromagnetic fields in a conducting media. It describes the theoretical and physical principles of the main geophysical methods using electromagnetic fields, including frequency and transient soundings, electromagnetic profiling, and magnetotelluric soundings. Special attention is paid to models and signal processing methods used in modern exploration geophysics for groundwater, mineral and hydrocarbon exploration.
Offers an integrated approach to the description of electromagnetic geophysical fields used for surface geophysical surveys
Provides a clear introduction to the physical background of electromagnetic methods and their application
Rounds off the treatment of the main geophysical methods: gravity, magnetic seismic, electric and electromagnetic methods
Research and exploration geophysicists, electronic engineers, graduate and undergraduate students
Methods in Geochemistry and Geophysics
Introduction
Acknowledgments
Part One: The Constant Electric and Magnetic Fields
Chapter One. The System of Equations of the Constant Electric and Magnetic Fields
Introduction
1.1. Equations of the Constant Electric Field in a Conducting and Polarizable Medium
1.2. Interaction of Currents, Biot–Savart Law and Magnetic Field
1.3. The Vector Potential of the Magnetic Field
1.4. System of Equations of the Constant Magnetic Field
1.5. Behavior of the Magnetic Field
1.6. The System of Equations of the Constant Electromagnetic Field
Part Two: Propagation and Diffusion of Electromagnetic Fields
Chapter Two. Physical Laws and Maxwell’s Equations
Introduction
2.1. Faraday's Law
2.2. The Principle of Charge Conservation
2.3. Distribution of Electric Charges
2.4. Displacement Currents
2.5. Maxwell Equations of the Electromagnetic Field
2.6. Equations for the Fields E and B
2.7. Electromagnetic Potentials
2.8. Maxwell's Equations for Sinusoidal Fields
2.9. Electromagnetic Energy and Poynting Vector
2.10. Theorem of Uniqueness of a Solution of the Forward Problem
Chapter Three. Propagation and Quasi-Stationary Field in a Nonconducting Medium
Introduction
3.1. Plane Wave in a Uniform Medium
3.2. Quasi-Stationary Field in a Nonconducting Medium
3.3. Induction Current in a Thin Conducting Ring Placed in a Time-Varying Field
Chapter Four. Propagation and Diffusion in a Uniform Medium
4.1. Sinusoidal Plane Wave in a Uniform Medium
Case 1: The High-Frequency Spectrum or the Range of Large Parameter β, (β > 1)
Case 2: The Low-Frequency Spectrum or the Range of Small Parameter β, (β < 1)
4.2. Field of the Magnetic Dipole in a Uniform Medium (Frequency Domain)
4.3. Equations for Transient Field of the Magnetic Dipole in a Uniform Conducting and Polarizable Medium
4.4. Behavior of the Field in a Nonconducting Medium
4.5. Behavior of the Transient Field in a Conducting Medium
4.6. Propagation and Diffusion
Part Three: Quasi-Stationary Field in a Horizontally Layered Medium
Chapter Five. The External and Internal Skin Effect, Diffusion
Introduction
5.1. The Skin Effect
5.2. Diffusion of Induced Currents
5.3. Diffusion of the Magnetic Field
Chapter Six. Quasi-Stationary Field of the Magnetic Dipole in a Uniform Medium
Introduction
6.1. Quasi-Stationary Field of the Magnetic Dipole (Frequency Domain)
6.2. Transient Field of the Magnetic Dipole in Uniform Medium
Chapter Seven. The Hilbert and Fourier Transforms
Introduction
7.1. Hilbert Transform
7.2. Fourier Integrals
Chapter Eight. Vertical Magnetic Dipole in the Presence of Uniform Half Space
8.1. Formulation of Boundary Value Problem
8.2. Solution of Helmholtz Equations
8.3. Expressions for the Vector Potential
8.4. The Field of the Magnetic Dipole in a Conducting Medium Provided that h = 0, k0 = 0
8.5. The Field Expressions at the Earth's Surface
8.6. The Range of Small Parameter p or Near Zone
8.7. The Range of Large Parameters p or Wave Zone
8.8. Frequency Responses of the Field
8.9. The Vertical Magnetic Dipole on the Surface of a Uniform Half Space (Time Domain)
Chapter Nine. Quasi-Stationary Field of Vertical Magnetic Dipole on the Surface of a Horizontally Layered Medium
Introduction
9.1. The Field Expressions on the Surface of N-Layered Medium
9.2. Expressions for the Field in N-Layered Medium
9.3. Behavior of the Field when Interaction between Induced Currents is Negligible
9.4. The Field of a Vertical Magnetic Dipole in the Range of Small Parameters r/δi
9.5. Approximate Method of Field Calculation
9.6. The Field within the Range of Small Parameters when Basement is an Insulator
9.7. The Field on the Surface of a Layered Medium at the Wave Zone
9.8. The Second Approach of Deriving the Asymptotic Formulas for Wave Zone
9.9. Transient Field at the Range of Large Parameter r/τ at the Surface of a Layered Medium (Wave Zone)
9.10. The Late Stage of the Transient Field on the Surface of a Layered Medium
9.11. Field of a Vertical Magnetic Dipole in the Presence of a Horizontal Conducting Plane
9.12. Transient Responses of Currents in a Conducting Plane
Chapter Ten. Horizontal Magnetic Dipole above the Surface of a Layered Medium
10.1. Formulation of Boundary Value Problem for Vector Potential
10.2. The Vertical Component of the Vector Potential Az∗
10.3. The Component of the Magnetic Field Bx
Part Four: Electromagnetic Soundings in a Horizontally Layered Medium
Chapter Eleven. Principles of Magnetotellurics
Introduction
11.1. Invention of the Method
11.2. Wave Zone, Quasi-Plane Wave and the Impedance of Plane Wave
11.3. The Impedance of the Plane Wave
11.4. The Apparent Resistivity and Its Behavior in a Horizontally Layered Medium
11.5. Development of magnetotelluric Inverse Problem Solution
11.6. Solution of Inverse Problem of the Electromagnetic Soundings for the Horizontally Layered Medium
Chapter Twelve. Electromagnetic Soundings
12.1. Development of the Frequency and Transient Soundings
12.2. Frequency Soundings in the Far Zone
12.3. Transient Sounding in the Far Zone
12.4. Transient Sounding
12.5. Apparent Resistivity Curves
12.6. Frequency Sounding
Chapter Thirteen. Quasi-Stationary Field of Electric Dipole in a Horizontally Layered Medium
Introduction
13.1. The Constant Electric and Magnetic Fields (ω = 0) in a Uniform Medium
13.2. Quasi-Stationary Field of the Electric Dipole in a Uniform Medium
13.3. The Harmonic Field of the Horizontal Electric Dipole on the Surface of a Uniform Half Space
13.4. The Horizontal Electric Dipole on the Surface of a Horizontally Layered Medium
13.5. Transition to the Stationary Field
13.6. The Range of Large Induction Number (Wave Zone)
13.7. The Transient Field from the Electric Dipole Source on the Surface of a Uniform Half Space
13.8. Transient Field on the Surface of Two-Layer Medium
Part Five: Principles of Inductive Mining Prospecting
Chapter Fourteen. Behavior of the Fields Caused by Currents in Confined Conductors
Introduction
14.1. Conductive Sphere in a Uniform Magnetic Field (Frequency Domain)
14.2. Behavior of the Field Caused by Currents in a Nonmagnetic Sphere (The Frequency Domain)
14.3. The Conducting Sphere in a Uniform Magnetic Field (Time Domain)
14.4. Influence of Magnetization on the Field Behavior
14.5. Conductive Sphere in the Field Caused by a Current Loop with Axial Symmetry
14.6. The Circular Cylinder in a Uniform Magnetic Field (Frequency Domain)
14.7. Transient Responses of the Field Caused Currents in a Circular Cylinder
14.8. Equations for the Field Caused by Currents in a Confined Conductor
14.9. Behavior of the Field due to Currents in a Confined Conductor
14.10. Influence of Geological Noise Represented by Confined Conductors
14.11. Influence of a Surrounding Medium on the Field due to a Confined Conductor (Charges are Absent)
14.12. Elliptical Polarization of the Electric and Magnetic Field
14.13. Development of the Inductive Methods of Mining Prospecting
14.14. Dipole Electromagnetic Profiling
14.15. Modern Systems of Electromagnetic Profiling
14.16. The Transient Method of the Mining Prospecting
14.17. Influence of Charges on Resolution of Electromagnetic Methods of Mining Prospecting
Chapter Fifteen. Magnetotelluric Soundings in a Laterally Inhomogeneous Medium
Introduction
15.1. The Impedance Tensor
15.2. Behavior of the Impedance Tensor
15.3. The Wiese–Parkinson Vector (Tipper)
15.4. Behavior of the Plane Wave in a Nonhorizontal Layered Medium
15.5. Examples of the Field Behavior
Appendix One. Airborne Electromagnetic Prospecting Systems
Appendix Two. Estimation of the Impedance Tensor
Appendix Three. Relation between Amplitude and Phase for Magnetotelluric Impedance
Appendix Four. The Field of the Vertical Electric Dipole in the Layered Medium
Index
No. of pages: 794
Language: English
Edition: 1
Volume: 45
Published: June 27, 2014
Imprint: Elsevier
Hardback ISBN: 9780444538291
eBook ISBN: 9780444538307
AK
Alex Kaufman
Emeritus Professor A.Kaufman has 28 years’ experience of teaching at the geophysical department in Colorado School of Mines He received his PhD. in Institute of Physics of the Earth (Moscow) and degree of Doctor of Science from the Russian Academy of Science . From 1981 to 20015 he published 14 monographs by Academic Press and Elsevier, describing different geophysical methods. Most of them are translated and published in Russia and China. He also holds three patents, which found application in the surface and borehole geophysics. A. Kaufman is a honorary member of SEG.
Affiliations and expertise
Professor Emeritus, Colorado School of Mines, Golden, USA
DA
Dimitry Alekseev
Affiliations and expertise
P.P. Shirshov Institute of Oceanology of the Russian Academy of Sciences, Moscow, Russia
MO
Michael Oristaglio
Affiliations and expertise
Seknion, Inc., Boston, MA, USA
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