Magnetometry
The magnetic method studies the magnetic field produced by the bodies and structures of the subsurface, their intensity depending on their content of magnetite and other magnetic material in them. It is not possible to define geotechnical parameters with this method. Some of the most common applications of this technique include: determination of zones and mineral bodies, determination of fault zones, small and large scale modeling of geological structures.

Applications
-Locating subsurface or sub-aqueous ferrous utilities or objects (e.g. shipwrecks)
-Locating underground storage tanks
-Mapping landfills contents
-General geologic mapping aiding development of conceptual site models (CSMs)
-Magnetic response associated with biomineralization from iron reduction
-Locating unexploded ordinance (UXO)