Distribution of values is typically heavily truncated (censored), especially if analysis is done by neutron activation.
Elevated values generally indicative of sulphide mineralization. In association with Zn (especially), Pb, etc., strongly suggestive of the presence of Sedex or VHMS mineralization. Because of its strong chalcophile character, Cd may be used to validate a questionable Zn anomaly.2. As an Aid to Geological Mapping