On the uso of the VLF signature in geological mapping

Abstract

One of the electromagnetic methods of geophysical prospecting is known as 'VLF'. The method is outlined in the introduction. The traditional use of VLF lies in the exploration for sulphide orebodies. 'We suggest that a VLF survey contains information about the geology in a wider sense and indicate ways of extracting that information by applying techniques borrowed from seismic data-processing. Unlike the large and expensive computers which are used in the seismic industry, for our application we only need 'pocket computers'.