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Geophysical Studies in the Caucasus

Author: Lev Eppelbaum; Boris Khesin
Publisher: Dordrecht : Springer, 2012.
Series: Lecture notes in earth system sciences.
Edition/Format:   eBook : Document : EnglishView all editions and formats
Database:WorldCat
Summary:
The subject of this book is the methodology and results of integrated geophysical investigations in the Caucasian region, mainly interpretation of magnetic and gravity anomalies with utilization of a huge petrophysical database for the evaluation of geological structure and mineral resources. Relative voluminous geophysical data are useful for the Earth Sciences researchers interested in the Caucasian region (and  Read more...
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Genre/Form: Electronic books
Additional Physical Format: Print version:
Eppelbaum, Lev.
Geophysical Studies in the Caucasus.
Dordrecht : Springer, ©2012
Material Type: Document, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Lev Eppelbaum; Boris Khesin
ISBN: 9783540766193 3540766197 9783540766186 3540766189
OCLC Number: 801366114
Notes: 3.8.3 Variants of Integrated Interpretation.
Description: 1 online resource (412 pages).
Contents: Geophysical Studies in the Caucasus; Preface; Contents; Biographies of the Authors; Chapter 1: Introduction; Chapter 2: Tectonical-Geophysical Setting of the Caucasus; 2.1 The Origin of the Caucasus, Geological Evolution and Main Features; 2.1.1 Giscaucasus; 2.1.2 The Greater Caucasus; 2.1.3 The Transcaucasus; 2.1.4 The Lesser Caucasus; 2.2 A Brief History of Geophysical Studies in the Caucasus; 2.2.1 Initial Stage; 2.2.2 Formative Stage; 2.2.3 Contemporary Period; 2.3 The Caucasus in the Light of Regional Geophysical Analysis. Chapter 3: Methodological Specificities of Geophysical Studies in the Complex Environments of the Caucasus3.1 Specifics of Media and Geophysical Studies; 3.1.1 Main Features: Advantages of Natural Field Studies; 3.1.2 General Characteristics of the Targets and Host Media; 3.1.3 Typical Geophysical Noise Effects Under Mountainous Conditions; 3.1.3.1 Artificial Noise; 3.1.3.2 Non-Stationary Noise; 3.1.3.3 Geological-Geophysical and Environmental Factors; 3.1.3.4 Oblique Polarization; 3.2 Terrain Correction and Utilization of Topography for Extraction of Geological Information. 3.2.1 Problem of Terrain Correction: Two Aspects of This Problem3.2.2 Common Correction Techniques for Different Measurement Heights; 3.2.3 Reduction to Line; 3.2.4 Correlation Technique for Terrain Correction; 3.2.4.1 Terrain Correction in Magnetic Prospecting; 3.2.4.2 Terrain Correction in Other Geophysical Methods; 3.2.4.3 Statistical Reduction of Gravity Anomalies; 3.2.4.4 The Correlation Procedure; 3.2.4.5 Estimation of Magnetization Inclination and Value Using DeltaT and DeltaZ Measurements on an Inclined Surface; 3.3 Elimination of Field Variations with Time. 3.4 Inverse Problem Solution in Complex Environments: The Example of a Magnetic Field3.4.1 Characteristic Point Method; 3.4.2 Tangent Method; 3.4.3 Interpretation of Magnetic Anomalies on an Inclined Surface; 3.5 Inversion of Other Natural (Gravity, Temperature, Self-Potential, and Seismicity) Fields; 3.5.1 Gravity Field; 3.5.2 Temperature Field; 3.5.3 Self-Potential Field; 3.5.4 Seismicity Field; 3.6 Inversion of Artificial and Quasi-Natural (Resistivity, Induced Polarization, Very Low Frequency) Fields; 3.6.1 Resistivity; 3.6.2 Induced Polarization; 3.6.3 VLF. 3.7 Information and Probabilistic Interpretation Methods for the Detection of Hidden Targets3.7.1 Entropy and Information; 3.7.2 Information-Statistical Techniques for the Analysis of Single Geophysical Fields; 3.7.2.1 Revealing Hidden Intersections of Linear Structures; 3.7.2.2 Singling Out Concentric (Ring) Objects; 3.7.2.3 Main Specificities of Transformation and Correlation Techniques; 3.8 Integrated Interpretation; 3.8.1 Combined Information Formalization of Geophysical-Geological Processes; 3.8.2 Multimodel Approach to Geophysical Data Analysis (on Example of Magnetic Data Analysis).
Series Title: Lecture notes in earth system sciences.

Abstract:

The subject of this book is the methodology and results of integrated geophysical investigations in the Caucasian region, mainly interpretation of magnetic and gravity anomalies with utilization of a huge petrophysical database for the evaluation of geological structure and mineral resources. Relative voluminous geophysical data are useful for the Earth Sciences researchers interested in the Caucasian region (and adjacent and similar regions) characterized by complicated geological structure, inclined magnetization (polarization), uneven topography and mountain/sea transition. Examination of geophysical fields verified by super-deep wells drilling indicates that magmatic rocks of the Lesser Caucasus are extended northward under thick sedimentary cover of the Kura Depression up to the Greater Caucasus. These rocks form hidden petroleum-bearing traps of a newly identified type. On the basis of geophysical studies (mainly inexpensive magnetic and electric methods), a new copper-polymetallic province in the Greater Caucasus has been revealed. a newly developed integrated approach and special information-statistical techniques for processing and interpretation of geophysical data facilitate detection of important geological features, e.g. hidden intersections of linear structures that control location of large commercial ore and oil-and-gas deposits, as well as focuses of dangerous geodynamic events at a depth. Numerous illustrations (including colour) elucidate different problems and solutions on various scales and in diverse geological-geophysical environments. Many aspects of this book have been presented at the teaching courses for bachelors, masters and doctors at the Tel-Aviv University (Tel Aviv, Israel) and Ben-Gurion University (Be'er-Sheva, Israel). Benefits to readers are predetermined by the combination of the authors many-years personal experience in the geophysical studies of Azerbaijan and other regions of the Caucasus with the authors' knowledge of the modern level of geophysics in the world.

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