Description In this book the author presents the state-of-the-art electromagnetic (EM)
theories and methods employed in EM geophysical exploration.
The book brings together the fundamental theory of EM fields and the practical
aspects of EM exploration for mineral and energy resources.
This text is unique in its breadth and completeness in providing an
overview of EM geophysical exploration technology.
The book is
divided into four parts covering the foundations of EM
field theory and its applications, and emerging geophysical methods.
Part I is
an introduction to the field theory required for baseline
understanding.
Part II is an overview of all the basic elements of
geophysical
EM theory, from Maxwell's fundamental equations to modern
methods of modeling the EM field in complex 3-D geoelectrical formations.
Part III deals with the regularized solution of ill-posed
inverse electromagnetic problems, the multidimensional migration and imaging
of
electromagnetic data, and general interpretation techniques.
Part IV describes major geophysical electromagnetic methods?direct
current (DC), induced polarization (IP), magnetotelluric
(MT), and controlled-source electromagnetic (CSEM) methods?and covers
different
applications of EM methods in exploration geophysics, including
minerals and HC exploration, environmental study, and crustal study.
Audience
geochemists, geophysists
Contents I Introduction to Field Theory
1 Differential Calculus of Vector Fields and Differential Forms
2 Foundations of Field Theory
II Foundations
of Electromagnetic Theory
3 Electromagnetic Field Equations
4 Models of Electromagnetic Induction in the Earth
5 Electromagnetic Fields
in Horizontally Stratified Media
6 Electromagnetic Fields in Inhomogeneous Media
III Inversion and Imaging of Electromagnetic
Field Data
7 Principles of Ill-Posed Inverse Problem Solution
8 Electromagnetic Inversion
9 Electromagnetic Migration
IV Geophysical Electromagneticmethods
10 Electromagnetic Properties of Rocks and Minerals
11 Generation and Measurement of Electromagnetic Fields in Geophysical
Applications
12 Direct Current and Induced Polarization Methods
13 Magnetotelluric and Magnetovariational Methods
14 Electromagnetic Methods in the
Frequency and Time Domains
15 Marine Electromagnetic Methods
16 Other Platforms, Other Methodologies
A Algebra of Differential Forms
B Calculus of Differential Forms
C Mathematical Notations
D Definition of Fields and Units
E Linear Operators and Their Matrices
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