GBG Australia have recently carried out a geophysical investigation on the grounds of Queensland’s oldest surviving building: Bankfoot House, Glass House Mountains. The investigation utilised Ground Penetrating Radar (GPR) and a Frequency-domain Electromagnetic Profiler (EM Profiler). A number of areas of interest were identified, including the stone foundations of the old post office.
Figure 1: Site view.
Figure 2: Electromagnetic survey at 1 m spacing.
Figure 3: 400 MHz Ground Penetrating Radar being used to scan subsurface.
Figure 4: Electromagnetic Profiler being set up.
Figure 5: EM Profiler with high accuracy GPS antenna.
Figure 6: GPR scan result.
Figure 7: EM Profiler survey result.