graphite and associated metal sulphide minerals – for example pyrite and pyrrhotite

– are conductors, various electromagnetic (EM) methods can be highly effective

exploration tools for graphite mineralisation. EM surveys can be carried out on the ground, downhole or from the air. Ground surveys can be performed by several

methods, including fixed loop (FLEM) or moving loop. Downhole EM surveys (DHEM) can be used to locate conductive targets that may have been missed by a drill hole. Airborne EM surveys, such as versatile time-domain electromagnetics (VTEM), are commonly used during the early stages of exploration as large areas can be covered

quickly and relatively cost-effectively

Thank you, Prof. Asoori Latha