An overview of Helicopter Time-Domain EM systems

Abstract

A number of helicopter AEM systems are discussed including AeroTEM, HeliGeotem, RepTEM, SkyTEM and VTEM. Field data are shown from a range of exploration environments, including AeroTEM data across an oil sands prospect in Alberta, Canada, HeliGEOTEM mineral exploration data from Labrador, Canada, RepTEM uranium exploration data from South Australia, SkyTEM salinity mapping data from South Australia and VTEM data across a massive sulphide in Western Australia. The data were modelled with layered-earth inversions and selected anomalies were modelled successfully with conductive plates in free-space.