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Electromagnetic Surveys

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The electromagnetic (EM) technique is based on the response of the ground to the propagation of an electromagnetic field created by the survey instrument. The EM survey technique has a number of different applications and can be applied to both reconnaissance and detailed ground investigations. Main components of the EM instrument are a transmitter (for the generation of primary field) and receiver (measurement of the induced secondary field).

Typical applications are:
  • Detection of buried metallic objects
  • Contaminant mapping
  • Minerals exploration (ground and airborne)
  • Groundwater exploration