Introduction to Geophysical Prospecting |
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acoustic impedance air gun amplitude angle apparent resistivity applied axis body Bouguer anomaly cable calculated component contours correction cross-correlation curve deconvolution density depth determined direction distance earth effect electrodes energy equation exploration FIGURE filter Fourier transform frequency ft/s function g/cm³ geologic geophone Geophys geophysicist Geophysics gradient gravity anomaly gravity data horizontal input interface interpretation interval inverse layer lithology Magnetic Anomalies magnetic field magnetometer Magnetotelluric marine measured meter method mGal migration milliGals moveout noise observed obtained offset operations output plotted position processing range recording reflection coefficient refraction rocks salt dome sample sand sedimentary seismic data seismic waves seismogram shale shear shooting shot point shown in Fig signal stack static station structure subsurface surface techniques thickness tion trace V₁ variations velocity vertical vibroseis wave waveform wavelength wavelet Western Geophysical zero zone