Cavity Detection and Delineation Research: Report 3, Acoustic Resonance and Self-Potential Applications: Medford Cave and Manatee Springs Sites, Florida.

摘要

In this study, three surface geophysical methods were applied to the problem of detecting and delineating subsurface cavities. An acoustic resonance technique was used at the Medford Cave test site in Florida where there are numerous shallow air-filled solution cavities in limestone. Sonar and self-potential (SP) methods were used at the Manatee Springs test site in Florida where water-filled solution cavities are found at a depth of 90 ft below the ground surface. The apparatus and techniques used are described in this report.