Advances In Electromagnetic Geophysical Exploration

Author : Jin Li,James Gong,Cong Zhou,Xian Zhang
Publisher : Frontiers Media SA
Page : 128 pages
File Size : 40,5 Mb
Release : 2024-01-19
Category : Science
ISBN : 9782832543061

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Advances in Electromagnetic Geophysical Exploration by Jin Li,James Gong,Cong Zhou,Xian Zhang Pdf

Electromagnetic exploration is one of the earliest and most widely used geophysical exploration techniques. Electromagnetic methods, such as magnetotelluric (MT), audio magnetotelluric (AMT), transient electromagnetic method (TEM), and controlled source electromagnetic method (CSEM), have made a great contribution to industrialization and urbanization by discovering underground deposits of various resources. Driven by the latest progress in electronics and intelligent algorithms, electromagnetic exploration is developing at a high speed. Many challenges faced by traditional geophysical methods are now solvable. Emerging sensing technology and signal processing technology greatly improves the accuracy of electromagnetic methods in many applications. At the same time, such technologies promoted the development of new geophysical theories and methods.

Author : Misac N. Nabighian
Publisher : SEG Books
Page : 989 pages
File Size : 50,9 Mb
Release : 1988
Category : Electromagnetic fields
ISBN : 9781560800224

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Electromagnetic Methods in Applied Geophysics by Misac N. Nabighian Pdf

As a slag heap, the result of strip mining, creeps closer to his house in the Ohio hills, fifteen-year-old M. C. is torn between trying to get his family away and fighting for the home they love.

Author : Michael S. Zhdanov
Publisher : Elsevier
Page : 804 pages
File Size : 44,7 Mb
Release : 2017-10-27
Category : Science
ISBN : 9780444638915

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Foundations of Geophysical Electromagnetic Theory and Methods by Michael S. Zhdanov Pdf

Foundations of Geophysical Electromagnetic Theory and Methods, Second Edition, builds on the strength of the first edition to offer a systematic exposition of geophysical electromagnetic theory and methods. This new edition highlights progress made over the last decade, with a special focus on recent advances in marine and airborne electromagnetic methods. Also included are recent case histories on practical applications in tectonic studies, mineral exploration, environmental studies and off-shore hydrocarbon exploration. The book is ideal for geoscientists working in all areas of geophysics, including exploration geophysics and applied physics, as well as graduate students and researchers working in the field of electromagnetic theory and methods. Presents theoretical and methodological foundations of geophysical field theory Synthesizes fundamental theory and the most recent achievements of electromagnetic (EM) geophysical methods in the framework of a unified systematic exposition Offers a unique breadth and completeness in providing a general picture of the current state-of-the-art in EM geophysical technology Discusses practical aspects of EM exploration for mineral and energy resources

Author : A.A. Fitch
Publisher : Springer Science & Business Media
Page : 206 pages
File Size : 42,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400966253

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Developments in Geophysical Exploration Methods—4 by A.A. Fitch Pdf

Geophysical prospecting is an applied science and the range of scientific principles to be applied is very wide. In this collection of original papers, the application of many different principles is described in the search for sulphides, other metallic ores and radioactive deposits. The papers are all concerned with surface observations and cover both the theory and the practice of the methods used. In all cases the advan tages and disadvantages of the methods are described and their role in the detection of mineral deposits is discussed and placed in context. Electromagnetic methods are covered in detail, involving the use of both electric and magnetic field effects. Techniques are described involv ing observations both at a number of discrete frequencies and with continuously changing frequency. In spite of the diversity of method it is interesting to note the strong links between the papers; two chapters, for example, start from the same fundamental illustration, first published by Won, of the basic relationship between source frequency, ground con ductivity and depth of penetration. The all-important economic aspects are not forgotten and the first chapter assesses the statistics of performance and describes their use in the shaping and management of an exploration programme. The editor takes this opportunity to thank the busy men who have set aside time to write these contributions.

Author : Philip Kearey,Michael Brooks,Ian Hill
Publisher : John Wiley & Sons
Page : 292 pages
File Size : 46,6 Mb
Release : 2013-04-16
Category : Science
ISBN : 9781118698938

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An Introduction to Geophysical Exploration by Philip Kearey,Michael Brooks,Ian Hill Pdf

This new edition of the well-established Kearey and Brooks text is fully updated to reflect the important developments in geophysical methods since the production of the previous edition. The broad scope of previous editions is maintained, with even greater clarity of explanations from the revised text and extensively revised figures. Each of the major geophysical methods is treated systematically developing the theory behind the method and detailing the instrumentation, field data acquisition techniques, data processing and interpretation methods. The practical application of each method to such diverse exploration applications as petroleum, groundwater, engineering, environmental and forensic is shown by case histories. The mathematics required in order to understand the text is purposely kept to a minimum, so the book is suitable for courses taken in geophysics by all undergraduate students. It will also be of use to postgraduate students who might wish to include geophysics in their studies and to all professional geologists who wish to discover the breadth of the subject in connection with their own work.

Author : Michael S Zhdanov
Publisher : Elsevier
Page : 869 pages
File Size : 51,5 Mb
Release : 2009-06-12
Category : Science
ISBN : 9780080931760

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Geophysical Electromagnetic Theory and Methods by Michael S Zhdanov Pdf

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 practicalaspects of EM exploration for mineral and energy resources.This text is unique in its breadth and completeness in providing anoverview of EM geophysical exploration technology. The book is divided into four parts covering the foundations of EMfield theory and its applications, and emerging geophysical methods.Part I is an introduction to the field theory required for baselineunderstanding. Part II is an overview of all the basic elements ofgeophysical EM theory, from Maxwell's fundamental equations to modernmethods of modeling the EM field in complex 3-D geoelectrical formations. Part III deals with the regularized solution of ill-posedinverse electromagnetic problems, the multidimensional migration and imaging ofelectromagnetic 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, includingminerals 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

Author : Arkoprovo Biswas,Shashi Prakash Sharma
Publisher : Springer Nature
Page : 414 pages
File Size : 50,9 Mb
Release : 2020-01-01
Category : Science
ISBN : 9783030289096

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Advances in Modeling and Interpretation in Near Surface Geophysics by Arkoprovo Biswas,Shashi Prakash Sharma Pdf

This book deals primarily with the aspects of advances in near surface geophysical data modeling, different interpretation techniques, new ideas and an integrated study to delineate the subsurface structures. It also involves the practical application of different geophysical methods to delineate the subsurface structures associated with mineral, groundwater exploration, subsurface contamination, hot springs, coal fire etc. This book is specifically aimed with the state-of-art information regarding research advances and new developments in these areas of study, coupled to extensive modeling and field investigations obtained from around the world. It is extremely enlightening for the research workers, scientists, faculty members and students, in Applied Geophysics, Near Surface Geophysics, Potential Field, Electrical and Electromagnetic Methods, Mathematical Modeling Techniques in Earth Sciences, as well as Environmental Geophysics.

Author : J.S. Sumner
Publisher : Elsevier
Page : 292 pages
File Size : 40,6 Mb
Release : 2012-12-02
Category : Technology & Engineering
ISBN : 9780444599872

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Principles of Induced Polarization for Geophysical Exploration by J.S. Sumner Pdf

Developments in Economic Geology, 5: Principles of Induced Polarization for Geophysical Exploration focuses on the principles, methodologies, and approaches involved in induced polarization (IP), including anisotropism, electromagnetic coupling, and electrical circuits. The book first takes a look at resistivity principles, theory of IP, and laboratory work in IP. Concerns cover electrical measurements of rocks, anisotropism, early part of decay curve and the comparison with frequency effects, electrical models of induced polarization, electrical polarization, resistivities of earth materials, and resistivity exploration methods. The manuscript then elaborates on IP field equipment, telluric noise and electromagnetic coupling, IP field surveying, and drill-hole and underground surveying and the negative IP effect. Discussions focus on differences between surface and subsurface methods, current-sending system in the field, telluric (earth) currents, electromagnetic coupling, design considerations, coupling of electrical circuits, design considerations, and signal-generating system. The manuscript ponders on the complex-resistivity method and interpretation of induced-polarization data, including grade estimation of mineralization using the IP method, complex-resistivity survey, signal detection capabilities of the complex-resistivity method, and disadvantages of the complex-resistivity method. The text is a valuable source of information for researchers wanting to study induced polarization.

Author : Ronold W.P. King,Margaret Owens,Tai T. Wu
Publisher : Springer Science & Business Media
Page : 771 pages
File Size : 40,5 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461391746

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Lateral Electromagnetic Waves by Ronold W.P. King,Margaret Owens,Tai T. Wu Pdf

The propagation of waves along and across the boundary between two media with different characteristic velocities is much more complicated when the source is on or near the boundary than when it is far away and the incident waves are plane. Examples of waves generated by localized sources near a boundary are the electromagnetic waves from the currents in a dipole on the surface of the earth and the seismic waves from a slip event in a fault in the earth's crust like the San Andreas fault in California. Both involve a type of surface wave that is called a lateral wave in electro magnetics and a head wave in seismology. Since the two are analogous and the latter is more easily visualized, it is conveniently used here to introduce and describe this important type of surface wave using the data of Y. Ben Zion and P. Malin ("San Andreas Fault Zone Head Waves Near Parkfield, CA," Science 251, 1592-1594, 29 March 1991).

Author : A.A. Fitch
Publisher : Springer Science & Business Media
Page : 284 pages
File Size : 53,7 Mb
Release : 1983-10-31
Category : Science
ISBN : 0853342164

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Developments in Geophysical Exploration Methods by A.A. Fitch Pdf

"The first phase of geophysical exploration is carried out on the subsurface.The subsurface in this phase is inaccessible to direct observation. D.W. Strangway presents an interesting and effective method: audiofrequency magnetotelluric (AMT) sounding. In the second phase where observations can be made, D.J Buchanan writes of fault detection in coal seams, and A. Hussain writes about of gravity surveys.Other contributions include, improvement of geophysical logs by filtering and a troublesome problem which can appear in either phase of exploration-discovery and exploration of caves and abandoned mine workings.'

Author : Misac N. Nabighian
Publisher : Unknown
Page : 544 pages
File Size : 47,9 Mb
Release : 1988
Category : Science
ISBN : UOM:39015013550507

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Electromagnetic Methods in Applied Geophysics: Theory by Misac N. Nabighian Pdf

As a slag heap, the result of strip mining, creeps closer to his house in the Ohio hills, fifteen-year-old M. C. is torn between trying to get his family away and fighting for the home they love.

Author : Anonim
Publisher : Academic Press
Page : 104 pages
File Size : 42,8 Mb
Release : 2017-12-22
Category : Science
ISBN : 9780128124147

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Advances in Geophysics by Anonim Pdf

Advances in Geophysics, Volume 58, the latest in this critically acclaimed serialized review journal that has published for over 50 years, contains the latest information available in the field. Users will find valuable chapters highlighting the Novel use of geodynamics in plate tectonic reconstruction, and on Optimized experimental design in the context of seismic full waveform inversion and seismic imaging. Since 1952, each volume in this series has been eagerly awaited, frequently consulted, and praised by researchers and reviewers alike. Now in its 58th volume, it is truly an essential publication for researchers in all fields of geophysics. Provides high-level reviews of the latest innovations in geophysics Written by recognized experts in the field Essential publication for researchers in all fields of geophysics

Author : Kalyan Kumar Roy
Publisher : Unknown
Page : 672 pages
File Size : 50,7 Mb
Release : 1999
Category : Earth
ISBN : STANFORD:36105021328500

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Deep Electromagnetic Exploration by Kalyan Kumar Roy Pdf

Electromagnetic waves and their role in probing the earth are important for the exploration of the earth's deep crust. This book is not only for scientists in geophysics a useful source of information, but also for professionals in oil and gas exploration, geophysicists and engineers alike.

Author : Misac N. Nabighian
Publisher : Unknown
Page : 128 pages
File Size : 45,9 Mb
Release : 1987
Category : Magnetic prospecting
ISBN : 093183046X

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Electromagnetic Methods in Applied Geophysics by Misac N. Nabighian Pdf

Author : Yanzhang Luo,Guiqing Zhang
Publisher : SEG Books
Page : 204 pages
File Size : 52,7 Mb
Release : 1998
Category : Science
ISBN : 9781560800484

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Theory and Application of Spectral Induced Polarization by Yanzhang Luo,Guiqing Zhang Pdf

The authors review spectral induced polarization theory and describe some of the SIP method's applications through a discussion of their research in the People's Republic of China. In the first of four chapters, they discuss the electrochemical basis of SIP, offering proof of the validity of using the Cole-Cole model for describing complex resistivity spectra. In the next chapter, which addresses the SIP forward problem, they describe the scale-modeling laws for SIP, various forward algorithms, the behavior and variation laws of SIP anomalies, and effective SIP parameters. The third chapter discusses SIP inversion methods, including several methods of calculating the intrinsic spectral parameters of a polarizable body. In the final chapter, the authors describe their field tests applying the SIP method to prospecting for orebodies and oil and gas reservoirs. The material is introduced in part through a reprinting of a 1959 paper by Volume Editor James R. Wait titled 'The Variable Frequency Method."