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VLF SURVEYS

Very-Low Frequency Electromagnetic Method (VLF-EM) is a geophysical method for exploration of shallow earth. VLF uses overseas military antennas as source that beams strong electromagnetic waves. VLF-EM frequency range is  between 15 and 30 kHz.

APPLICATION of METHOD

- Exploration of discontinuities, joints and faults
- Determination of horizontal and vertical variations,
- Applications of Geophysical Engineering,
- Exploration of karstic voids,
- Exploration of minerals and intrusion structures (dykes, dispersions)