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Geophysics for Mineral Exploration
| Geophysics for Mineral Exploration |
| Autore | Zhdanov Michael S |
| Pubbl/distr/stampa | Basel, Switzerland, : MDPI - Multidisciplinary Digital Publishing Institute, 2021 |
| Descrizione fisica | 1 online resource (204 p.) |
| Soggetto topico |
Research & information: general
Research and information: general |
| Soggetto non controllato |
3D focusing migration
adaptive equivalent-dimension body wave tomography central India conjugate migration direction control source CSAMT CSEM CSRMT dense array discovery effective medium elastic waves electromagnetics fast imaging Gadarwara gantour Basin geophysical electromagnetic modelling geophysical exploration gravity gravity focusing density inversion grid-characteristic method hydrogeology induced polarization inversion IOCG iron deposit joint inversion linear slip model Magnetic anomaly magnetics magnetization vector magnetotelluric method mineral exploration mineralization modeling and inversion Morocco n/a Narmada-Son-Lineament Ouled Abdoun Basin phosphate extraction phosphate mines polymetallic minerals preconditioned jacobian-free Newton-Krylov (JFNK) method regularization remanent magnetization seismic methods single point continuous motion detection skarn-type iron deposits three-dimensional transient electromagnetic method undulating terrain unstructured mesh and structured mesh Zhuxi ore deposit |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910557366603321 |
Zhdanov Michael S
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| Basel, Switzerland, : MDPI - Multidisciplinary Digital Publishing Institute, 2021 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Three-dimensional electromagnetics : proceedings of the second international symposium / / edited by Michael S. Zhdanov and Philip E. Wannamaker
| Three-dimensional electromagnetics : proceedings of the second international symposium / / edited by Michael S. Zhdanov and Philip E. Wannamaker |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Amsterdam ; ; New York, : Elsevier, 2002 |
| Descrizione fisica | 1 online resource (305 p.) |
| Disciplina | 622/.153 |
| Altri autori (Persone) |
ZhdanovMichael S
WannamakerP. E (Philip E.) |
| Collana | Methods in geochemistry and geophysics |
| Soggetto topico | Magnetic prospecting |
| ISBN |
1-281-02732-4
9786611027322 0-08-054299-9 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Front Cover; Three-Dimensional Electromagaetics; Copyright Page; CONTENTS; Preface; Part I: 3-D EM Modeling; CHAPTER 1. AN INTEGRAL EQUATION SOLUTION TO THE GEOPHYSICAL ELECTROMAGNETIC FORWARD-MODELLING PROBLEM; 1. Introduction; 2. The Integral Equation; 3. Numerical Solution - Galerkin Approach; 4. Edge Element Basis Vectors; 5. The Green's Functions - Part I; 6. Evaluation of the Integrals; 7. The Green's Functions - Part II; 8. Examples; 9. Computational Efficiency; 10. Conclusions; References; CHAPTER 2. COMPRESSION IN 3-D INTEGRAL EQUATION MODELING; 1. Introduction
2. Forward Modeling with 3-D Integral Equations3. Compression Matrix; 4. Compression in Three Dimensions; 5. Compression as Preconditioner to the Integral Equation; 6. The ILU Preconditioned Conjugate Gradient Method; 7. Modeling Examples; 8. Conclusions; References; CHAPTER 3. MODELLING ELECTROMAGNETIC FIELDS IN A 3D SPHERICAL EARTH USING A FAST INTEGRAL EQUATION APPROACH; 1. Introduction; 2. Governing Equations; 3. Solution Verification; 4. Concluding Remarks; Appendix A. Dyadic Green's functions of radially symmetric section; References CHAPTER 4. MODELLING INDUCTION LOG RESPONSES IN 3D GEOMETRIES USING A FAST INTEGRAL EQUATION APPROACH1. Introduction; 2. Theory; 3. Computational Load; 4. Numerical Examples; 5. Concluding Remarks; References; CHAPTER 5. NONLINEAR APPROXIMATIONS FOR ELECTROMAGNETIC SCATTERING FROM ELECTRICAL AND MAGNETIC INHOMOGENEITIES; 1. Introduction; 2. Integral Equation Formulation; 3. Born Approximation; 4. Localized Approximation; 5. Quasi-Linear Approximation; 6. Quasi-Analytical Approximation; 7. Numerical Results and Validation; 8. Conclusions; Appendix A. Quasi-Analytical One-Dimensional Solution ReferencesCHAPTER 6. THREE-DIMENSIONAL MODELING CONSIDERING THE TOPOGRAPHY FOR THE CASE OF THE TIME-DOMAIN ELECTROMAGNETIC METHOD; 1. Introduction; 2. Theory; 3. Numerical Checks; 4. Numerical Examples; 5. Conclusions; Appendix A. Correspondence of the Differential Coefficients between the Physical Domain and the Computational Domain; Appendix B. Derivation of the Finite-Difference Equations; References; CHAPTER 7. REDUCED-ORDER MODELING OF TRANSIENT DIFFUSIVE ELECTROMAGNETIC FIELDS; 1. Introduction; 2. Basic Equations; 3. Reduced-Order Models for the Diffusive Electromagnetic Field 4. Numerical Results5. Conclusions; Appendix A. The Lanczos Algorithm for Skew Symmetric Matrices; References; Part II: 3-D EM Inversion; CHAPTER 8. THREE-DIMENSIONAL MAGNETOTELLURIC MODELING AND INVERSION: APPLICATION TO SUB-SALT IMAGING; 1. Introduction; 2. The 3D MT Forward Problem; 3. The 3D MT Inverse Problem; 4. Marine MT Resolution Study; 5. Conclusions; Appendix A; References; CHAPTER 9. 2-D INVERSION OF FREQUENCY-DOMAIN EM DATA CAUSED BY A 3-D SOURCE; 1. Introduction; 2. Inversion Theory; 3. Synthetic Data Example; 4. Conclusions Appendix A. Expectation of Objective Function in Constrained Linearized Least- Squares Method |
| Record Nr. | UNINA-9911006653103321 |
| Amsterdam ; ; New York, : Elsevier, 2002 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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