Answer:
Continuous Seismic Profiling is an indirect investigation method based on seismic wave propagation. Able to provide insight into the sedimentary strata and which, depending on the geology of the site, allows the mapping of the rocky top.
In Continuous Seismic Profiling, a submerged acoustic source produces oscillations in the particles (pulses). When emitted pulses reach the interface between two layers with different mechanical properties, some of the energy is reflected back to the surface where it is picked up by a receiver. Knowing the propagation velocity of the waves in the middle and the source-interface-receiver transit time, it is possible to calculate the depth of the target.