Tesla designed this system for use in prospecting and discerning the location of underground mineral structures through the transmission of mechanical energy through the subsurface. Data from reflected and refracted signals can be analyzed to deduce the location and characteristics of underground formations. Additional non-mechanical responses to the initial acoustic impulses may also be detectable using instruments that measure various electrical and magnetic parameters. Such predicted responses would--at least--take the form of induced electric and magnetic fields, telluric currents, and changes in earth conductivity.
^The underlying principles are discussed in Tesla's paper, "Relative merits of the Lucas method of prospecting by detonations of explosive compounds and of the Tesla method of prospecting by isochronous oscillations theoretically considered" (ed., available in the book, Nikola Tesla's Teleforce & Telegeodynamics Proposals, Leland Anderson and Gary Peterson, editors, 21st Century Books, 1998, ISBN 0-9636012-8-8
Journal Il Nuovo Cimento C, On a new general theory of earthquakes. Italian Physical Society, ISSN 1124-1896. Issue Volume 11, Number 2 / March, 1988 DOI 10.1007/BF02561733 Pages 209-217 SpringerLink Date Thursday, February 08, 2007