GBG Australia staff recently spent several weeks in a remote part of PNG to conduct a geophysical investigation for a proposed tailings dam. The conditions experienced onsite were hot, humid and muddy but the staff enjoyed the challenge amongst the jungle.
Initially a number of techniques were trialled which included resistivity, shallow and deep ReMi (refraction micro-tremor). Processing was carried out on site concurrent to the field acquisition to save on time, and to adequately assess each technique’s effectiveness. Upon examination of the results of all the techniques it was decided to exclude the use of resistivity as the results being returned were not of a high standard.
In addition to the surface geophysics described above, a number of downhole VSSP (vertical seismic shear-wave profiling) and crosshole seismic surveys were conducted at strategic points throughout the tailings dam to correlate the results of the ReMi.
This is the fourth project undertaken by GBG Australia in PNG.
One of our Sydney based staff members getting some temporary shade while collecting 5m geophone spaced ReMi on a beach
One of our Perth based staff members in the jungle with the collection equipment in a carry box.
ome makeshift shade over the equipment while we operated out the back of the vehicle
Vertical Seismic Profiling
Two of our staff members posing with the vehicles after a day of data collection