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Titre : Frequency and transient soundings Type de document : texte imprimé Auteurs : Alexander A. Kaufman, Auteur ; Keller, George V., Auteur Editeur : Amsterdam : Elsevier Année de publication : 1983 Collection : Methods in geochemistry and geophysics num. 16 Importance : XXI-685 p. Présentation : ill. Format : 25 cm ISBN/ISSN/EAN : 978-0-444-42032-9 Note générale : Bibliogr. p. 678-685 Langues : Anglais (eng) Mots-clés : Magnetotelluric prospecting
Electromagnetic fields
Sounding and soundings
Prospection magnétotellurique
Sondages sous-marins
Champs électromagnétiques
Mineral deposits. Prospecting. Electromagnetic sounding methodsIndex. décimale : 622.24 Sondage. Technique du sondage. Technologie du sondage Résumé : In this book we explore a very specialized topic, that of determining the electrical resistivity of the earth as a function of depth using electromagnetic methods. Various electromagnetic methods have been used extensively for more than half a century in exploration for mineral deposits, but it is not this type of application that we consider here... Note de contenu : Summary:
1. Frequency-domain bahavior of the electromagnetic field generated by a magnetic dipole
2. Frequency-domain behavior of the electromagnetic field generated by electric dipole
3. Time-domain electromagnetic fields generated by a magnetic or electric dipole source on a startified medium
4. Theoritical basis for the use of induction methods on the sea floor
5. Definition of apparent resistivity and the interpretation of soudings
6. Computer-assisted interpretation and inversion
7. Acquisition and processing of electromagnetic souding data
8. Applications of electromagnetic souding methodsFrequency and transient soundings [texte imprimé] / Alexander A. Kaufman, Auteur ; Keller, George V., Auteur . - Amsterdam : Elsevier, 1983 . - XXI-685 p. : ill. ; 25 cm. - (Methods in geochemistry and geophysics; 16) .
ISBN : 978-0-444-42032-9
Bibliogr. p. 678-685
Langues : Anglais (eng)
Mots-clés : Magnetotelluric prospecting
Electromagnetic fields
Sounding and soundings
Prospection magnétotellurique
Sondages sous-marins
Champs électromagnétiques
Mineral deposits. Prospecting. Electromagnetic sounding methodsIndex. décimale : 622.24 Sondage. Technique du sondage. Technologie du sondage Résumé : In this book we explore a very specialized topic, that of determining the electrical resistivity of the earth as a function of depth using electromagnetic methods. Various electromagnetic methods have been used extensively for more than half a century in exploration for mineral deposits, but it is not this type of application that we consider here... Note de contenu : Summary:
1. Frequency-domain bahavior of the electromagnetic field generated by a magnetic dipole
2. Frequency-domain behavior of the electromagnetic field generated by electric dipole
3. Time-domain electromagnetic fields generated by a magnetic or electric dipole source on a startified medium
4. Theoritical basis for the use of induction methods on the sea floor
5. Definition of apparent resistivity and the interpretation of soudings
6. Computer-assisted interpretation and inversion
7. Acquisition and processing of electromagnetic souding data
8. Applications of electromagnetic souding methodsRéservation
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Titre de série : Geosounding principles, 1 Titre : Resistivity sounding measurements Type de document : texte imprimé Auteurs : Koefoed, Otto, Auteur Editeur : Amsterdam : Elsevier Année de publication : 1979 Collection : Methods in geochemistry and geophysics num. 14A Importance : XIV-276 p. Présentation : ill. Format : 25 cm ISBN/ISSN/EAN : 978-0-444-41704-6 Note générale : Bibliogr. p. 269-272. Index Langues : Anglais (eng) Mots-clés : Prospecting -- Geophysical methods
Géophysique
ElectromagnétismeIndex. décimale : 622.24 Sondage. Technique du sondage. Technologie du sondage Résumé : This book is the first to incorporate all these developments and it will therefore be invaluable both to research workers and to those who apply the resistivity sounding method in practice. Although approximate interpretation procesures are discussed, the main emphasis of the book is on accurate interpretation methods. Note de contenu : Summary:
1. The field procedure and method of measuring
2. The potential distribution at the surface of a horizontally stratified earth
3. The kernel function and its relation to the sub-surface parameters
4. The apparent resistivity function
5. Methods for the determination of resistivity filters
6. The computation of apparent resistivity model
7. Approximate interpretation methods
8. The derivation of schlumberger apparent resistivity curves from apparent resistivity curves in other electrode configurations
9. Iterative interpretation methods
10. Direct interpretation methods
11. The eeffects of deviations from fundamental assumptions
12. Complementary methods
13. Examples of resistivity sounding surveys
* References
* IndexGeosounding principles, 1. Resistivity sounding measurements [texte imprimé] / Koefoed, Otto, Auteur . - Amsterdam : Elsevier, 1979 . - XIV-276 p. : ill. ; 25 cm. - (Methods in geochemistry and geophysics; 14A) .
ISBN : 978-0-444-41704-6
Bibliogr. p. 269-272. Index
Langues : Anglais (eng)
Mots-clés : Prospecting -- Geophysical methods
Géophysique
ElectromagnétismeIndex. décimale : 622.24 Sondage. Technique du sondage. Technologie du sondage Résumé : This book is the first to incorporate all these developments and it will therefore be invaluable both to research workers and to those who apply the resistivity sounding method in practice. Although approximate interpretation procesures are discussed, the main emphasis of the book is on accurate interpretation methods. Note de contenu : Summary:
1. The field procedure and method of measuring
2. The potential distribution at the surface of a horizontally stratified earth
3. The kernel function and its relation to the sub-surface parameters
4. The apparent resistivity function
5. Methods for the determination of resistivity filters
6. The computation of apparent resistivity model
7. Approximate interpretation methods
8. The derivation of schlumberger apparent resistivity curves from apparent resistivity curves in other electrode configurations
9. Iterative interpretation methods
10. Direct interpretation methods
11. The eeffects of deviations from fundamental assumptions
12. Complementary methods
13. Examples of resistivity sounding surveys
* References
* IndexRéservation
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Code-barres Cote Support Localisation Section Disponibilité Etat_Exemplaire 035762 622.24 KOE Papier Bibliothèque Centrale Génie Minier Disponible
Titre de série : Geosounding principles, 2 Titre : Time-varying geoelectric soundings Type de document : texte imprimé Auteurs : Patra, H. P., Auteur ; Mallick, K., Auteur Editeur : Amsterdam : Elsevier Année de publication : 1980 Collection : Methods in geochemistry and geophysics num. 14B Importance : XV-419 p. Présentation : ill. Format : 25 cm ISBN/ISSN/EAN : 978-0-444-41811-1 Note générale : Bibliogr. p. 387-404. Index Langues : Anglais (eng) Mots-clés : Prospection géophysique Index. décimale : 622.24 Sondage. Technique du sondage. Technologie du sondage Résumé :
This second volume deals with theoretical, computational and interpretational approaches for geolectric soundings using various controlled and natural time varying fields (alternating current, transient, magnetotelluric and geomagnetic) covering a wide frequncy range and including some significant applications.Note de contenu : Summary:
1. Introduction
2. Fundamental equations on potentials and fields
3. Some approximate mathematical methods
4. Alternating current soundings
5. Transient soundings
6. Magnetotelluric and geomagnetic soundings
7. Geological applicationsGeosounding principles, 2. Time-varying geoelectric soundings [texte imprimé] / Patra, H. P., Auteur ; Mallick, K., Auteur . - Amsterdam : Elsevier, 1980 . - XV-419 p. : ill. ; 25 cm. - (Methods in geochemistry and geophysics; 14B) .
ISBN : 978-0-444-41811-1
Bibliogr. p. 387-404. Index
Langues : Anglais (eng)
Mots-clés : Prospection géophysique Index. décimale : 622.24 Sondage. Technique du sondage. Technologie du sondage Résumé :
This second volume deals with theoretical, computational and interpretational approaches for geolectric soundings using various controlled and natural time varying fields (alternating current, transient, magnetotelluric and geomagnetic) covering a wide frequncy range and including some significant applications.Note de contenu : Summary:
1. Introduction
2. Fundamental equations on potentials and fields
3. Some approximate mathematical methods
4. Alternating current soundings
5. Transient soundings
6. Magnetotelluric and geomagnetic soundings
7. Geological applicationsRéservation
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Titre de série : Inductive mining prospecting, 1 Titre : Theory Type de document : texte imprimé Auteurs : Alexander A. Kaufman, Auteur ; Keller, George V., Auteur Editeur : Amsterdam : Elsevier Année de publication : 1985 Collection : Methods in geochemistry and geophysics num. 20A Importance : VI-620 p. Présentation : ill. Format : 25 cm ISBN/ISSN/EAN : 978-0-444-42271-2 Note générale : Bibliogr. p. [607]-617 . Index Langues : Français (fre) Mots-clés : Prospection électrique , Prospection magnétique Index. décimale : 622 Industrie minière Note de contenu : Sommaire:
1. Introduction
2. Basic electomagnetic laws and Maxwell's equations
3. Frequency and time-domain behavior of the field caused by currents induced in a confined conductor
4. Resolving capabilities and depht of investigation of inductive methods, when geologic noise in a confined inhomogeneity
5. Effect of induced currents in the host medium on frequency and transient responses caused by currents flowwing in a confined conductor
6. The effect of surface electrical charge on the behavior of secondary electromagnetic fieldsInductive mining prospecting, 1. Theory [texte imprimé] / Alexander A. Kaufman, Auteur ; Keller, George V., Auteur . - Amsterdam : Elsevier, 1985 . - VI-620 p. : ill. ; 25 cm. - (Methods in geochemistry and geophysics; 20A) .
ISBN : 978-0-444-42271-2
Bibliogr. p. [607]-617 . Index
Langues : Français (fre)
Mots-clés : Prospection électrique , Prospection magnétique Index. décimale : 622 Industrie minière Note de contenu : Sommaire:
1. Introduction
2. Basic electomagnetic laws and Maxwell's equations
3. Frequency and time-domain behavior of the field caused by currents induced in a confined conductor
4. Resolving capabilities and depht of investigation of inductive methods, when geologic noise in a confined inhomogeneity
5. Effect of induced currents in the host medium on frequency and transient responses caused by currents flowwing in a confined conductor
6. The effect of surface electrical charge on the behavior of secondary electromagnetic fieldsRéservation
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Code-barres Cote Support Localisation Section Disponibilité Etat_Exemplaire 035761 622 KAU Papier Bibliothèque Centrale Génie Minier Disponible Consultation sur place
Titre : Mining geophysics Type de document : texte imprimé Auteurs : Parasnis, D. S., Auteur Mention d'édition : 2 éd Editeur : Amsterdam : Elsevier Année de publication : 1973 Collection : Methods in geochemistry and geophysics num. 3 Importance : XIX-395 p. Présentation : ill. Format : 24 cm ISBN/ISSN/EAN : 978-0-444-41077-1 Note générale : Bibliogr. p. [381]-388. Index Langues : Anglais (eng) Mots-clés : Prospection géophysique Index. décimale : 550.3 Géophysique Note de contenu : Summary:
1. The role of geophysics in ore prospecting
2. General aspect of the collection and presentation of geophysical data
3. Magnetic methods
4. The self-potential method
5. Electromagnetic methods
6. Electrical methods
7. Induced polarization methods
8. Gravity methods
9. Seismic methods
10. Radioactivite methods
11. Airborne magnetic and electromagnetic methods
12. Combination of geophysical methods
* Appendix
* References
* IndexMining geophysics [texte imprimé] / Parasnis, D. S., Auteur . - 2 éd . - Amsterdam : Elsevier, 1973 . - XIX-395 p. : ill. ; 24 cm. - (Methods in geochemistry and geophysics; 3) .
ISBN : 978-0-444-41077-1
Bibliogr. p. [381]-388. Index
Langues : Anglais (eng)
Mots-clés : Prospection géophysique Index. décimale : 550.3 Géophysique Note de contenu : Summary:
1. The role of geophysics in ore prospecting
2. General aspect of the collection and presentation of geophysical data
3. Magnetic methods
4. The self-potential method
5. Electromagnetic methods
6. Electrical methods
7. Induced polarization methods
8. Gravity methods
9. Seismic methods
10. Radioactivite methods
11. Airborne magnetic and electromagnetic methods
12. Combination of geophysical methods
* Appendix
* References
* IndexRéservation
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Code-barres Cote Support Localisation Section Disponibilité Etat_Exemplaire 035770 550.3 PAR Papier Bibliothèque Centrale Sciences de la terre Disponible