RECENT DEVELOPMENTS IN GEOPHYSICS
JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA
Pagination or Media Count:
Measuring the components of the earths geomagnetic field by the proton resonance method Using natural electromagnetic variations for in vestigation of the earths upper layers Plotting magnetotelluric sounding curves according to recordings of short-period variations in the natural geomagnetic field Calculation of the low-frequency dipole field in the far zone Some func tions of the complex argument which appear in the low-frequency field theory Approximate formula for a dipole field above a horizontal lamellar structure with a poorly conducting base Direc tional electromagnetic sounding Comparison of the induction method with the dipole electromag netic method on a thin conducting plate model Representation of observational data of alter nating-current prospecting as an apparent specific resistance The use of low- frequency alternating current in electrical profiling and sounding Methods of calculating a point-source field in the presence of a vertical bed Influence of the earth-air boundary of the electrical field of a polarized sphere Low- frequency NCHMU equipment for prospecting Concerning the vertical torsion balance theory Plotting wave-front charts with an arbitrary law of change in seismic velocity with depth.
- Geology, Geochemistry and Mineralogy