La gravimétrie donne de bonnes réponses pour des dépôts de petites dimensions.

ISO is a moderately dipping, tabular Cu-Zn VMS type deposit located within the Abitibi greenstone belt.

INPUT–EM survey successfully located a 425 meter long conductor (Magusi River (ISO)) beneath 12 meters of conductive overburden.

A gravimetric survey was completed along the conductor to determine whether the source was related to graphite or sulphides. A 1 mGal gravity anomaly isolated the sulphide zone to within a 125m section of the conductive zone.

Conductivity and gravimetric anomalies were explained by a small tonnage deposit confirmed by drilling.