Magnetometry

 

Magnetometry 

Magnetics Overview:

Magnetic Surveying measures variations in the Earth's magnetic field generated by differences in sub-surface rock magnetic susceptibility (and remanence). It provides information about the depth, shape and volume of bodies with different magnetic properties in the subsurface. In magnetic geophysical surveying, we are looking for areas where the earth’s magnetic field is perturbed from its background state.  It’s very easy to make the measurements, but complex to understand and interpret, because we are dealing with vector fields generated by dipoles and because the measured magnetic anomaly is dependent on mineralogy and not bulk properties.

Magnetic Anomaly