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Geophysical Potential Fields

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Geophysical Potential Fields

Geophysical Potential Fields Book
Author : Lev Eppelbaum
Publisher : Elsevier
Release : 2019-07-18
ISBN : 0128116862
Language : En, Es, Fr & De

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Book Description :

Geophysical Potential Fields: Geological and Environmental Applications, Volume Two, investigates the similarities and differences of potential geophysical fields, including gravity, magnetics, temperature, resistivity and self-potential, along with the influence of noise on these fields. As part of the Computational Geophysics series, this volume provides computational examples and methods for effectively solving geophysical problems in a full cycle manner. Including both quantitative and qualitative analysis, the book offers different filtering and transformation procedures, integrated analysis, and special interpretation methodologies, also presenting a developed 3D algorithm for combined modeling of gravity and magnetic fields in complex environments. The book also includes applications of the unified potential field system, such as studying deep structure, searching hydrocarbon and ore deposits, localizing buried water horizons and rockslide areas, tectono-structural mapping of water basins, and classifying archaeological targets. It is an ideal and unique resource for geophysicists, exploration geologists, archaeologists and environmental scientists. Clearly demonstrates the successive stages of geophysical field analysis for different geological and environmental targets Provides a unified system for potential geophysical field analysis that is demonstrated by numerous examples of system application Demonstrates the possibilities for rapidly and effectively interpreting anomalies, receiving some knowledge of modern wavelet, diffusion maps and informational approach applications in geophysics, and combined gravity-magnetic methodology of 3D modeling Includes text of the Geological Space Field Calculation (GSFC) software intended for 3D combined modeling of gravity and magnetic fields in complex environments

Analysis of Geophysical Potential Fields

Analysis of Geophysical Potential Fields Book
Author : P.S. Naidu,M.P. Mathew
Publisher : Elsevier
Release : 1998-06-19
ISBN : 9780080527123
Language : En, Es, Fr & De

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Book Description :

When some useful information is hidden behind a mass of unwanted information we often resort to information processing used in its broad sense or specifically to signal processing when the useful information is a waveform. In geophysical surveys, in particular in aeromagnetic and gravity surveys, from the measured field it is often difficult to say much about any one specific target unless it is close to the surface and well isolated from the rest. The digital signal processing approach would enable us to bring out the underlying model of the source, that is, the geological structure. Some of the tools of dsp such as digital filtering, spectrum estimation, inversion, etc., have found extensive applications in aeromagnetic and gravity map analysis. There are other emerging applications of dsp in the area of inverse filtering, three dimensional visualization, etc. The purpose of this book is to bring numerous tools of dsp to the geophysical community, in particular, to those who are entering the geophysical profession. Also the practicing geophysicists, involved in the aeromagnetic and gravity data analysis, using the commercially available software packages, will find this book useful in answering their questions on "why and how?". It is hoped that such a background would enable the practising geophysicists to appreciate the prospects and limitations of the dsp in extracting useful information from the potential field maps. The topics covered are: potential field signals and models, digital filtering in two dimensions, spectrum estimation and application, parameter estimation with error bounds.

Potential Theory in Applied Geophysics

Potential Theory in Applied Geophysics Book
Author : Kalyan Kumar Roy
Publisher : Springer Science & Business Media
Release : 2007-11-15
ISBN : 354072334X
Language : En, Es, Fr & De

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Book Description :

This book introduces the principles of gravitational, magnetic, electrostatic, direct current electrical and electromagnetic fields, with detailed solutions of Laplace and electromagnetic wave equations by the method of separation of variables. Discussion includes behaviours of the scalar and vector potential and the nature of the solutions of these boundary value problems, along with the use of complex variables and conformal transformation, Green's theorem, Green's formula and Green's functions.

Geophysics Field Measurements

Geophysics Field Measurements Book
Author : N.A
Publisher : Academic Press
Release : 1987-09-24
ISBN : 9780080860121
Language : En, Es, Fr & De

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Book Description :

Geophysics Field Measurements

Practical and Theoretical Aspects of Geological Interpretation of Gravitational Magnetic and Electric Fields

Practical and Theoretical Aspects of Geological Interpretation of Gravitational  Magnetic and Electric Fields Book
Author : Danis Nurgaliev,Natalia Khairullina
Publisher : Springer
Release : 2019-02-01
ISBN : 3319976702
Language : En, Es, Fr & De

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Book Description :

This volume offers an overview of the state-of-the-art theoretical and practical approaches currently used for geophysical data interpretation. It includes new methods and techniques for solving data processing problems, and an analysis of geopotential fields by international researchers. It discusses topics such as: 1. Theoretical issues of interpretation of gravitational, magnetic and electric fields, including general methods of interpreting potential fields and other geophysical data. 2. Modern algorithms and computer technologies for interpretating geophysical fields. 3. The study of Earth deep structure using terrestrial and satellite potential field anomalies. 4. Geological interpretation of gravitational, magnetic and electric fields. This proceedings book is of interest to all geophysical researchers.

Geophysical Electromagnetic Theory and Methods

Geophysical Electromagnetic Theory and Methods Book
Author : Michael S. Zhdanov
Publisher : Elsevier
Release : 2009-06-12
ISBN : 9780080931760
Language : En, Es, Fr & De

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Book 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. * 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

Developments in Geophysical Exploration Methods

Developments in Geophysical Exploration Methods Book
Author : A. A. Fitch
Publisher : Springer Science & Business Media
Release : 2012-12-06
ISBN : 9400981058
Language : En, Es, Fr & De

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Book Description :

One facet of development in this field is that the methods of gathering and processing geophysical data, and displaying results, lead to presentations which are more and more comprehensible geologically. Expressed in another way, the work of the interpreter becomes progressively less onerous. The contributions in this collection of original papers illustrate this direction of development, especially in seismic prospecting. If one could carry out to perfection the steps of spiking deconvolution, migration and time--depth conversion, then the seismic section would be as significant geologically as a cliff-face, and as easy to understand. Perhaps this is not yet achieved, but it remains an objective, brought closer by work such as that described by the authors. The editor offers his best thanks to the contributors-busy geophysicists who have written with erudition on this range of subjects of current interest. A. A. FITCH v CONTENTS Preface v List of Contributors IX 1. Determination of Static Corrections A. W. ROGERS 2. Vibroseis Processing 37 P. KIRK The 11 Norm in Seismic Data Processing 53 3. H. L. TAYLOR 4. Predictive Deconvolution 77 E. A. ROBINSON 5. Exploration for Geothermal Energy 107 G. V. KELLER 6. Migration 151 P. HOOD Index 231 vii LIST OF CONTRIBUTORS P. HOOD Geophysicist, Geophysics Research Branch, The British Petroleum Co. Ltd, Britannic House, Moor Lane, London EC2Y 9BU, UK.

Geoid and its Geophysical Interpretations

Geoid and its Geophysical Interpretations Book
Author : Mr. Petr Vanicek,Nikolaos T. Christou
Publisher : CRC Press
Release : 1993-10-18
ISBN : 9780849342271
Language : En, Es, Fr & De

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Book Description :

Geoid and its Geophysical Interpretations explains how an accurate geoid can be constructed and used for a variety of applied and theoretical geophysical purposes. The book discusses existing techniques for geoid computation, recently developed mathematical and computational tools designed for applications, and various interpretations. Principles and results are well illustrated. This book will be an excellent reference for geodesists, geophysicists, geophysical prospectors, oceanographers, and researchers and students in geophysics and geodesy.

Economic Geology

Economic Geology Book
Author : Walter L. Pohl
Publisher : John Wiley & Sons
Release : 2011-03-03
ISBN : 144439486X
Language : En, Es, Fr & De

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Book Description :

Humanity’s ever-increasing hunger for mineral raw materials, caused by a growing global population and ever increasing standards of living, has resulted in economic geology becoming a subject of urgent importance. This book provides a broad panorama of mineral deposits, covering their origin and geological characteristics, the principles of the search for ores and minerals, and the investigation of newly found deposits. Practical and environmental issues that arise during the life cycle of a mine and after its closure are addressed, with an emphasis on sustainable and "green" mining. The central scientific theme of the book is to place the extraordinary variability of mineral deposits in the frame of fundamental geological processes. The book is written for earth science students and practicing geologists worldwide. Professionals in administration, resource development, mining, mine reclamation, metallurgy, and mineral economics will also find the text valuable. Economic Geology is a fully revised translation of the the fifth edition of the German language text Mineralische und Energie-Rohstoffe. Additional resources for this book can be found at: www.wiley.com/go/pohl/geology. The author's website can be found at: http://www.walter-pohl.com.

Probability and Statistics in Geodesy and Geophysics

Probability and Statistics in Geodesy and Geophysics Book
Author : Ludmila Kubackova,Ludmila Kubáčková,Lubomír Kubáček,Jan Kukuca,Ján Kukuča
Publisher : Elsevier Science Limited
Release : 1987
ISBN :
Language : En, Es, Fr & De

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Book Description :

The purpose of data processing is to obtain in explicit form maximum information on the object of the data measurements. This is accomplished by the use of suitable models based on the most up-to-date knowledge of the theory of probability and mathematical statistics. The need to constantly improve models for processing data sets is stimulated by the rapid development of geodetic and geophysical measurement techniques on the one hand and the possibilities of contemporary computer techniques on the other. The reasons for the incessant improvement of mathematical models are both gnostic and economic; experiments in particular are time-consuming and expensive to prepare and carry out; moreover, they may be unique and impossible to repeat. To develop an effective method for preparing such experiments and a correct procedure for processing the results is a theoretically exacting, although least costly, part of the whole process of preparation, realization and the evaluation of the measurements. The purpose of this book is to acquaint the reader with the mathematical methods in use at present, including those being developed and applied in advanced geodetic and geophysical centres.

Geophysical Field Theory and Method Part C

Geophysical Field Theory and Method  Part C Book
Author : Alex A. Kaufman
Publisher : Academic Press
Release : 1994-02-11
ISBN : 0080959946
Language : En, Es, Fr & De

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Book Description :

This book contains information about the theory of electromagnetic fields in conducting mediums. It describes the theoretical foundation of electromagnetic methods used in all areas of exploration geophysics, including a study of deep layers of Earth. This book will be useful for research and exploration geophysicists, electronic engineers, and graduate and university geophysics departments. Key Topics Covered Include: . Electromagnetic fields in conducting media . Physical principles of electromagnetic methods applied in geophysics . Relationship between electromagnetic fields and parameters of a medium

Advances in Geophysics

Advances in Geophysics Book
Author : Barry Saltzman
Publisher : Academic Press
Release : 2000-10-17
ISBN : 008052673X
Language : En, Es, Fr & De

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Book Description :

This series provides a venue for longer reviews of current advances in geophysics. Written at a level accessible to graduate students, the articles serve to broaden knowledge of various fields and may be useful in courses and seminars.