
%0 Journal Article
%A Gamey, T.J. 
%A Beard, L.P. 
%A Doll, W.E. 
%A Sheehan, J.R. 
%A Norton, J. 
%A Siwiak, M. 
%T High-resolution helicopter geophysics in support of a Defence engineering project
%J ASEG Extended Abstracts
%D 2010/09/01
%V 2010
%N 1
%P 1-1
%K 
%R https://doi.org/10.1071/ASEG2010AB199
%U https://www.publish.csiro.au/paper/ASEG2010AB199 
%X project at an Australian RAAF base in support of a base expansion project. The purpose was to identify, document and if possible, mitigate potential sources of groundwater contamination and related pathways. The two boom-mounted airborne systems that were deployed were designed for detection and mapping of shallow buried metals. An area of 1740ha was s urveyed with a combination of magnetic gradiometer and time-domain electromagnetic induction. Approximately 1230ha of this was flown at low altitude (1-3m) with a 16-sensor vertical gradient system (VG-16). The remaining area was flown at higher altitudes due to vegetative cover. Areas of special interest totaling 290ha were followed up with an 8-receiver low altitude electromagnetic survey (TEM-8). Ground follow-up with excavation was then conducted on a selection of anomalies to identify their causative sources. 
