GF Instruments, s.r.o.
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Geophysical Services
GF Instruments provides methodical research, near-surface measurements, consulting and services in:
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resistivity profiling
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refraction seismic
geophysics service
- engineering-geological surveys (for civil engineering, dams and dikes monitoring, utility mapping, landslides)
- environmental monitoring and mapping (waste sites, leakages, pollution plumes)
- UXO surveys
- hydrogeological surveys (ground water explorations and protection)
- geological surveys (search for raw materials, metal and coal deposits, mapping of geological structures)
- archaeological investigations
- special geophysical surveys (for criminology, military, industrial purposes etc.)
To solve these tasks we apply geophysical methods, equipment and software as follows:
Resistivity and IP:
- 2D/3D resistivity and IP imaging using multi-electrode cable, ARES II, ARES and RES2DINV / RES3DINV interpretation software
- vertical electrical sounding (VES - resistivity and IP) using ARES II, ARES (shallow surveys), GEPS-2000 (deep surveys), IPI2Win interpretation software
- resistivity and IP profiling using ARES II, ARES, Surfer mapping software
Electromagnetics:
- multidepth resistivity profiling (resistivity/conductivity and inphase mapping) using CMD conductivity meters (according to the required survey depth within 0.7 - 9 m) with EM inversion and mapping software (Interpex, Surfer)
Ground Penetrating Radar:
- 2D/3D surveys using GSSI SIR-3000 system and RADAN6 interpretation software
Refraction Seismics:
- 2D imaging using ABEM Terraloc system, Palmer method, RAYFRACT interpretation software
Crosshole Tomography:
- seismic crosshole tomography with the use of electric sparker and ABEM Terraloc system
Magnetics:
- gradient or total geomagnetic field measurements using Geometrix G-858GSX cesium magnetometer and GEM Systems GSMP-40 potassium magnetometer, Surfer mapping software
EM Time Domain Metal Detection:
- surveys using TM-93 metal detectors
Radiometric and Spectrometric Methods:
- spot measurements (surface, shallow borehole) and mapping using Gamma Surveyor II, Gamma Surveyor, SGR, Surfer mapping software
GPS:
- positioning with sub-meter accuracy using Trimble Pathfinder system