Investigations at Lambriggan Mine, near St Agnes, Cornwall

Ground geophysical and soil geochemical surveys were employed in an attempt to define the extensions of lead-zinc mineralised veins formerly exploited in the Lambriggan Mine. The results of these surveys are described here. The investigations were not successful, with neither extensions to known mineralisation nor any new mineral veins being clearly indicated by geochemical means. Of the geophysical methods employed only the Induced Potential method offered any promise and even that yielded a somewhat speculative interpretation. It seems unlikely that a significant body of lead or zinc ore awaits discovery in the immediate area of the Lambriggan Mine.