RESISTIVITY PROFILING WITH DIFFERENT ELECTRODE ARRAYS OVER A GRAPHITE DEPOSIT*

Abstract

A bstract Motivated by several papers by Indian colleagues suggesting that a single‐pole array is the most favorable one for locating electrically conductive targets in the underground, detailed measurements were carried out with different electrode arrays over a well‐known graphite deposit near Pfaffenreuth, Germany. The following arrays were used: (1) Wenner array; (2) single‐pole array; (3) half‐Wenner array; (4) half‐Schlumberger array. Each of the arrays established the location of the main graphite deposit. The half‐Schlumberger array turned out to be the most reliable one since it showed details which were only very poorly indicated by the other arrays or not at all. Mathematical modeling of three‐dimensional bodies simulating the geological situation for this deposit were carried out. These results show an unexpectedly good correlation with the measured effects.