Ludwig-Maximilian-University of Munich. Dept. of the Earth and Environmental Sciences. Section Geophysics.
This book reflects the modern stage of a relatively young branch of Geophysical Electromagnetics (EM) known as Time-domain Electromagnetics (TDEM), which is alternately known as Transient Electromagnetics (TEM).
Great attention is paid to the physical prerequisites for applying transient EM fields to geophysical investigations. A brief review of direct problem solutions, which form the elements of TEM theory, is given for basic geo-electric models. Other traditional subjects, such as methodology and interpretation, are also described in short form. This organizational approach was selected to permit detailed consideration of new, actual problems (both fundamental and applied).
These problems include the low frequency dispersion (LFD) of rocks’ EM properties and the LFD influence on the transient EM field. The influence includes the induced polarization (IP) and superparamagnetism (SPM) phenomena. In this text, the corresponding phenomenological EM theory for these phenomena is discussed. Next, the use of airborne TEM for prognosticating hydrocarbon (HC) fields is considered along with the use of ground TEM for solving shallow-depth geological and non-geological problems. New, modern techniques like TEM scanning and 3D-TEM observation and inversion systems are also described and illustrated using modeling and field examples.
This book is suggested for geophysicists using TEM in their research and practice. It is also suggested for students and postgraduates majoring in geo-electromagnetics.
This book is a great summary of time domain electromagnetics. It also explains how time domain EM is related to induced polarization in a badly needed clarity. In the last decade time domain electromagnetics has been reinvented in the context of hydrocarbon exploration and many ideas from previous decades were restarted, in many instances without remembering the prior achievements. This book is a serious contribution to overcome this by linking past scientific accomplishments, most in the Eastern hemisphere with today’s concepts.
The main focus of this book is the time domain or transient electromagnetic theory and methodology. It uses the application to mineral exploration, engineering, airborne exploration for base metal, oil and geothermal as examples. The book is based on a previous version in Russian but significantly goes beyond this by extending and relating the previous concepts to the Western approach to deal with time domain data.
The lead author, F. Kamenetsky is one of the pioneers of transient electromagnetics. He managed to enlist esteemed co-authors that make this work so practical.
In particular the section of explaining the influence of induced polarization is worth reading. The physics background is comprehensively explained and I thus recommend this book to anybody who is interested in time domain electromagnetics.