geophone characteristic
1Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …
2Vertical seismic profile — In geophysics, Vertical Seismic Profile (VSP) is a technique of seismic measurements used for correlation with surface seismic data. The defining characteristic of a VSP (of which there are many types) is that either the energy source, or the… …
