Our Services

Magnetic Methods

Reliable detection of ferrous material and magnetically susceptible geologic formations.

Magnetometers measure the intensity of the earth's magnetic field regardless of direction (total field magnetometers), or the intensity in a certain direction (fluxgate magnetometers). Thanks to superior data collection speed and sensitivity, total field magnetometers are more commonly used for environmental applications. Only ferrous objects will cause fluctuations in the earth magnetic field and can therefore be detected with magnetometers.

Using two sensors, GEL teams can record the sensor readings and the magnetic gradient at the measurement location for increased sensitivity and data quality. We store and display the data on a digital data logger, and download the data to a laptop for thorough analysis and interpretation.

  • Unexploded ordnance (UXO) mapping
  • Locating underground storage tanks (UST) and buried metal drums
  • Locating buried debris and landfills
  • Archaeological excavation to locate artifacts on construction sites and archaeological dig sites
  • Mineral exploration
  • Groundwater exploration