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Foundations of Geophysical Electromagnetic Theory and Methods provides a comprehensive and unified treatment of electromagnetic (EM) theory and its applications in geophysics. The third edition incorporates more than a decade of advances in theoretical developments, numerical modeling, and practical EM surveying, while maintaining the clarity and rigor of previous editions. The book begins with an introduction to field theory, including the differential calculus of vector fields and foundational principles underlying classical electromagnetic formulations. It then reviews the core elements of EM theory, covering Maxwell’s equations, models of EM induction in the Earth, and the behavior of electromagnetic fields in heterogeneous media. Subsequent chapters address the inversion and imaging of EM data, discussing the theory of ill-posed inverse problems, regularization strategies, electromagnetic inversion methodologies, and migration techniques used to construct subsurface images. The volume then turns to applied geophysical methods, examining the electromagnetic properties of rocks and minerals, the generation and measurement of EM fields, and survey techniques across a range of domains, including direct current, induced polarization, natural-field EM, controlled-source EM, and marine and airborne EM methods. A set of case studies illustrates the practical use of EM methods in geophysics, including mineral and energy resource exploration. Taken together, this edition serves as a comprehensive reference for geoscientists, physicists, and students seeking an in-depth understanding of geophysical electromagnetic theory, numerical methods, and their diverse applications.
Table des matières
Part I. Introduction to Field Theory1. Differential Calculus of Vector Fields and Differential Forms.
2. Foundations of Field Theory.
Part II. Foundations of Electromagnetic Theory3. Electromagnetic Field Equations.
4. Models of Electromagnetic Induction in the Earth.
5. Electromagnetic Fields in Horizontally Stratified Media.
6. Electromagnetic Fields in Inhomogeneous Media.
Part III. Inversion and Imaging of Electromagnetic Field Data7. Principles of Ill-posed Inverse Problem Solution.
8. Electromagnetic Inversion.
9. Electromagnetic Migration.
Part IV. Geophysical Electromagnetic Methods10. 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. Airborne Electromagnetic Methods.
17. Case histories. Appendices
A propos de l'auteur
Dr. Michael Zhdanov is a distinguished professor in the Department of Geology and Geophysics at the University of Utah in Salt Lake City, USA, and the director of the Consortium for Electromagnetic Modeling and Inversion (CEMI). He is also the founder and CEO of TechnoImaging LLC. Dr. Zhdanov is a leading expert in the field of theoretical and applied geophysics and is the author of more than 400 papers, including more than 15 monographs published in English, Russian, and Chinese, and holds more than two dozen patents. Professor Zhdanov is a full member of the Russian Academy of Natural Sciences, a fellow of the Electromagnetics Academy, USA, and a senior member of IEEE. He received one of the highest awards of the International Society of Exploration Geophysicists, an honorary membership award, in recognition of his distinguished contributions to exploration geophysics and to the advancement of the profession.
