Geophysical Methods |
Contents
GEODESY AND DETERMINING LOCATION | 27 |
GRAVITY THEORY MEASUREMENT AND DATA | 52 |
GRAVITY ANOMALIES AND THEIR INTERPRETATION | 73 |
Copyright | |
24 other sections not shown
Common terms and phrases
acoustic impedance amplitude angle anomaly basement borehole Bouguer anomaly changes contours core corrections Courtesy crust curvature curve density depth determine diffraction direction distance earth earthquake effects electric electrode electromagnetic energy equation factors fault filter fluid frequency Fresnel zone ft/s gamma rays geologic geophone geophysical gradient gravimeter gravity gravity anomaly head wave heat horizontal hydrocarbon indicate interface interpretation involves km/s magnetic field magnetometer magnetotelluric magnitude measurements meter methods mGal migration motion noise oceanic P-wave plane plot polarity porosity processing produce radiation raypath record reef reflecting point reflector refraction regional result rocks salt salt dome seafloor sediments seismic data seismic line seismic section seismic waves shale Sheriff and Geldart shown in Figure shows sometimes stacking structure surface survey syncline temperature thickness trace traveltime unconformity unmigrated usually V₁ values variations velocity vertical Vibroseis waveform wavefront wavelength wavelet waveshape zone