Geophysical Electromagnetic Theory and Methods

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.

* Presents theoretical and methodological findings, as well as examples of applications of recently developed algorithms and software in solving practical problems
* Describes the practical importance of electromagnetic data through enabling discussions on a construction of a closed technological cycle, processing, analysis and three-dimensional interpretation
* Updates current findings in the field, especially with MT, magnetovariational and seismo-electrical methods and the practice of 3D interpretations

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