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Volume 64, Number 5
1 October 1999
Geophysics Cover Image for Volume 64, Issue 5
ISSN: 0016-8033
EISSN: 1942-2156

BOREHOLE GEOPHYSICS

Computers and creativity
John A. Scales; Roel Snieder
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Experimental studies of electrokinetic conversions in fluid-saturated borehole models
Zhenya Zhu; Matthijs W. Haartsen; M. Nafi Toksoz
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ELECTRICAL METHODS

The effect of terrain topography on commonly used resistivity arrays
Panagiotis I. Tsourlos; John E. Szymanski; Gregory N. Tsokas
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ELECTROMAGNETIC METHODS

A new vertical continuation procedure for airborne electromagnetic field data from the modified image method
Clyde J. Bergeron; John R. Brusstar; Ningke Yi; Yan Wu; Juliette W. Ioup
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A simplified Lax-Wendroff correction for staggered-grid FDTD modeling of electromagnetic wave propagation in frequency-dependent media
Tim Bergmann; Joakim O. Blanch; Johan O. A. Robertsson; Klaus Holliger
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Modeling detector response in airborne gamma-ray spectrometry
Stephen Billings; Jens Hovgaard
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Transformation of VLF data into apparent resistivities and phases
Mehran Gharibi; Laust B. Pedersen
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Principles of probability tomography for natural-source electromagnetic induction fields
Paolo Mauriello; Domenico Patella
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An invariant representation for the magnetic transfer function in magnetotellurics
Jose M. Romo; Enrique Gomez-Trevino; Francisco J. Esparza
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POTENTIAL-FIELD METHODS

Gravity inversion of a discontinuous relief stabilized by weighted smoothness constraints on depth
Valeria C. F. Barbosa; Joao B. C. Silva; Walter E. Medeiros
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Comparison of gravimetric formulas for uniform polyhedra
Horst Holstein; Peter Schurholz; Andrew J. Starr; Mausumi Chakraborty
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ROCK PROPERTIES

Permeability prediction based on fractal pore-space geometry
Hansgeorg Pape; Christoph Clauser; Joachim Iffland
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SEISMIC DATA PROCESSING

Seismic trace interpolation using half-step prediction filters
Milton J. Porsani
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SEISMIC INTERPRETATION

Eigenstructure-based coherence computations as an aid to 3-D structural and stratigraphic mapping
Adam Gersztenkorn; Kurt J. Marfurt
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SEISMIC INVERSION

AVO inversion of a Gulf of Mexico bright spot; a case study
Patrice Nsoga Mahob; John P. Castagna; Roger A. Young
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First-break timing; arrival onset times by direct correlation
Joseph B. Molyneux; Douglas R. Schmitt
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Simultaneous inversion of formation shear-wave anisotropy parameters from cross-dipole acoustic-array waveform data
Xiaoming Tang; Raghu K. Chunduru
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The whiteness hypothesis; reflectivity, inversion, chaos, and Enders
Tadeusz J. Ulrych
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SEISMIC MIGRATION

Extended local Born Fourier migration method
Lian-Jie Huang; Michael C. Fehler; Ru-Shan Wu
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Extended local Rytov Fourier migration method
Lian-Jie Huang; Michael C. Fehler; Peter M. Roberts; Charles C. Burch
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Manual seismic reflection tomography
Gary E. Murphy; Samuel H. Gray
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The effect of 3-D prestack seismic migration on seismic coherence and amplitude variability
Walter E. Rietveld; Jan H. Kommedal; Kurt J. Marfurt
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A quasi-Monte Carlo approach to efficient 3-D migration; field data test
Changxi Zhou; Jing Chen; Gerard T. Schuster; Brackin A. Smith
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Parallel Butterworth and Chebyshev dip filters with applications to 3-D seismic migration
Hongbo Zhou; George A. McMechan
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SEISMIC TOMOGRAPHY

2-D ray-based tomography for velocity, layer shape, and attenuation from GPR data
Jun Cai; George A. McMechan
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A new kinematic method for mapping seismic reflectors
Jingping Zhe; Stewart A. Greenhalgh
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SEISMIC WAVE PROPAGATION

Ultrasonic velocity and shear-wave splitting behavior of a Colton sandstone under a changing triaxial stress
Menno W. P. Dillen; Helma M. A. Cruts; Jeroen Groenenboom; Jacob T. Fokkema; Adri J. W. Duijndam
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An improved method of determining near-surface Q
Yih Jeng; Jing-Yih Tsai; Song-Hong Chen
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TUTORIAL

The footsteps of the receiver ghost in the f-k domain
Katibe Aytun
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Origin of Gassmann's equations
James G. Berryman
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Reflectivity randomness revisited
Ayon K. Dey; Larry R. Lines
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Concepts of normal and dip movement
Christopher L. Liner
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Signal and noise separation; art and science
Tadeusz J. Ulrych; Mauricio D. Macchi; J. Michael Graul
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All Issues
  • Online ISSN 1942-2156
  • ISSN 0016-8033
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