Basic Geophysics
Society of Exploration Geophysicists (Verlag)
978-1-56080-345-4 (ISBN)
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For a thorough comprehension of the field of geophysics, we need to understand its origins. Basic Geophysics by Enders Robinson and Dean Clark takes us on a journey that demonstrates how the achievements of our predecessors have paved the way for our modern science. From the ancient Greeks through the Enlightenment to the greats of the contemporary age, the reasoning behind basic principles is explored and clarified. With that foundation, several advanced topics are examined, including: the 3D wave equation; ray tracing and seismic modeling; reflection, refraction, and diffraction; and WKBJ migration. The successful integration of the historical narrative alongside practical analysis of relevant principles makes this book an excellent resource for both novices and professionals, and all readers will gain insight and appreciation for the seismic theory that underlies modern exploration seismology.
Preface
Foreword
About the Authors
Chapter 1: Classical Geophysics
Pythagoras and Archimedes
Heron and Snell
Descartes as a geophysicist
Fermat and the principle of least time
Huygens’ principle
Isaac Newton and the birth of geophysics
Chapter 2: Wave Equation
Seismic ray direction
The eikonal equation and Pythagoras
Michael Faraday and the eikonal equation
Pressure and particle velocity
Chapter 3: Elasticity
The wave equation
A wave at a boundary
Stress and strain
Hooke’s law
Cartesian fields of dilatation
Cartesian fields of rotation
Equations of motion
Chapter 4: Rays, Anisotropy, and Maxwell’s Equations
Ray equation
Discovery of anisotropy
Maxwell’s equations
Chapter 5: Three-dimensional Wave Equation
Wave equation
One-dimensional wave equation
Sinusoidal waves
Plane waves
Spherical waves
Green’s function
Dispersion equation
Group velocity
Chapter 6: Ray Tracing and Seismic Modeling
Hamilton’s equations
Ray tracing
Eikonal equation
Ray equations
Reduction of Hamilton’s equations to the ray equations
Numerical ray tracing
Chapter 7: Reflection, Refraction, and Diffraction
Explanation of terms
Huygens’ principle
Reflection and refraction
Fermat’s principle
Resolution and the Fresnel zone
Diffraction
Diffraction curves
Diffractions appearing on seismic sections
Chapter 8: Migration by the WKBJ Method
Geometrical optics and physical optics
Exploding reflectors model
Migration
Wave depropagation simplified
Time migration
WKBJ migration
References
Basic Geophysics
| Erscheinungsdatum | 05.11.2017 |
|---|---|
| Reihe/Serie | Geophysical Monographs |
| Verlagsort | Tulsa |
| Sprache | englisch |
| Maße | 152 x 229 mm |
| Gewicht | 740 g |
| Themenwelt | Naturwissenschaften ► Geowissenschaften ► Geophysik |
| ISBN-10 | 1-56080-345-2 / 1560803452 |
| ISBN-13 | 978-1-56080-345-4 / 9781560803454 |
| Zustand | Neuware |
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