Global Geophysical and Open Ground Resources owe and maintain the following geophysical equipment:
GSSI GPR System
GSSI SIR-3000 Ground Penetrating Radar system with Cart and Accessories. A range of antennas are available to meet any user requirement and include a 40 MHz air-coupled antenna, 90 MHz, 400 MHz, 500 MHz and 900 MHz ground-coupled antenna.
Manufacturer website: www.geophysical.com.
AGI SuperSting R8 Multi-electrode resistivity system
An AGI 8 channel resistivity system with 56 electrode capability and cables up to 10m electrode spacing. The 8 channel capability of the system makes it a fast and cost-effective acquisition system. For example, a dipole-dipole array with 762 readings can be recorded in an average time of only 26min. The system can also be used for borehole IP and resistivity tomography measurements with custom-made borehole cables.
Manufacturer website: www.agiusa.com
A 24 channel Geometrics Geode system is used for acquisition of Seismic Refraction and MASW data. A Geometrics SmartSeis 24 channel system is also available as a backup system. The system is configured with four 12 channel cables with 10-m geophone takeout intervals. Low frequency 4.5Hz vertical geophones (56 available) are used. A land-streamer system is available for MASW surveys on tar and general road surfaces.
Manufacturer website: www.geometrics.com
Manufacturer website: www.geostuff.com
Gravity data is recorded with the latest Scintrex CG-5 gravimeter which offers high resolution and high data quality.
Manufacturer website: www.scintrexltd.com
G5 Proton Magnetometer
A G5 Proton Magnetometer is used to acquire ground magnetic data. This system is easy to use and offers reliable and repeatable data at a high acquisition rate.
Manufacturer website: www.geotron.co.za
IRIS Induced Polarization System
IP data is recorded with an ELREC PRO 10-channel receiver and a VIP-4000 time domain transmitter (4kW, 3000V, 5A). The transmitter is driven by an electronically controlled Honda EM65iS generator (5500W, 240V, 23A) which offers stable current and voltage supply.
Manufacturer website: www.iris-instruments.com
Trimble R8 GNSS RTK GPS System
The Trimble R8 system with sub-cm accuracy is a multi-channel, multi-frequency receiver, antenna, and data-link radio combined in one compact unit.
Manufacturer website: www.trimble.com