Geophysics is the study of the earth's subsurface based on the differences in the earth's physical properties.
Geophysical survey methods used to detect differences in the physical properties of subsurface materials include 2D Resistivity Seismos (2D), Gravity, Magnetic, Transient Electromagnetic (TEM), Very Low Frequency Electromagnetic (VLF) and Radiometric.
Geophysical surveys are used in the following geological surveys:
Groundwater Study
- Groundwater Exploration
- Groundwater Pollution
Downhole Logging
- Using resistance, gamma, calliper, and self-potential probes
- Identify the drill hole lithology and detect cracks
- Verify well design for the purpose of mineral water certification
Mineral Exploration
- Identify occurrences of minerals
- Identify geological structures related with mineralization
Engineering Geology Study
- Determination of weathering profile and depth of bedrock
- Identification of geological structures such as unconformities, faults and joints
- Investigation of geological disasters such as slope failures, sinkholes and subsidence
Environmental Study
- Saltwater Intrusion
- Solid waste disposal site