Electrical Resistivity Imaging

Advanced Geoscience, Inc. is an international geoscience field services and consulting firm based in Los Angeles, California and Reno, Nevada USA, established in 1997. The firm is staffed by geophysicists, geologists, and hydrogeologists who perform subsurface geophysical and geological investigations, groundwater, mineral, and oil and gas exploration, near-surface geophysical surveys for geotechnical studies and underground construction, and non-destructive evaluation of earth structures such as dams, levees, tunnels, harbor bulkheads, and concrete pile

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borehole seismic velocity (downhole, crosshole, tomography)concrete-scanning radardigital signal processingelectromagnetic induction and ground conductivity surveysgravity and micro-gravity surveysground penetrating radar (GPR)Impact-Echoimpulse response techniquesinduced polarization surveysmagnetometer surveysmulti-channel analysis of surface waves (MASW)non-destructive evaluationseismic reflection surveysseismic refractionsonic pulse echosurface waveswaveform analysis

Collier Geophysics, LLC is a service-disabled, veteran-owned small business founded in 2018 that offers surface, borehole, airborne, and marine geophysical solutions throughout the U.S. and around the globe. Headquartered in Stephenville, TX, it provides geophysical services for groundwater, engineering and geotechnical, environmental, energy, tunneling, archaeological and forensic, mine site engineering, mineral exploration, concrete inspection, geological studies, marine, and litigation support applications.

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Airborne GeophysicsBoreholeDrone Enabled AirborneelectricalElectromagnetic (EM)Gravityground penetrating radar (GPR)MagneticMagnetometryMarineRadar Tomographyseismic engineeringSeismic ImagingSeismic – PetroleumTowed electromagnetic geophysics