New methodology surface to hole for the detection of deep conductors around drillholes using d.c methods : case study from Rouez Mine, Bretagne, France

الملخص EN

A new geoelectrical configuration, surface to hole for the detection of deep conductors around drillholes, using the D.C.

has been proposed.

This new configuration is characterized by its high depth penetration compared with the other known traditional geoelectrical methods, applied from surface and in the wells.

It presents a directional effect, which is one of the most important advantages of this configuration that proves its superiority.

This configuration has been tested in the Rouez mine, Bretagne, France, where sulphide mineralisation is known to occur.

Several anomalies have been isolated in the field data and interpreted by different interpretative techniques.

The results obtained by applying this configuration were concordant and the detected conductors were approved by morphological and lithological descriptions