Geophysical Geophysical

Extremely Low Frequency EM System (ELF)

  • Cost effective alternative to MT/CSAMT and large-loop TEM surveys for deep exploration
  • Successful in detecting discrete conductors or for mapping geological features
  • Images deep conductors not detectable by traditional active source EM methods
  • Measures inphase and quadrature tilt angle or tipper of the magnetic field at frequencies from 11Hz to 1440Hz
  • Passive source – no wires loops or cut lines required
  • Portable instrument for a 2-person crew
  • Full 2D and 3D inversions to extract true conductivity structures
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