crustal magnetic field | Energy Glossary

Explore the Energy Glossary

Look up terms beginning with:

crustal magnetic field

1. n. [Geophysics]

The magnetic field associated with the Earth’s crust arises from induced and remanent magnetism. The crustal field—also referred to as the anomaly field—varies in direction and strength when measured over the Earth’s surface. It is relatively strong in the vicinity of ferrous and magnetic materials, such as in the oceanic crust and near concentrations of metal ores, and is a focus of geophysical mineral exploration.

See related terms: main magnetic fieldexternal disturbance fieldlocal magnetic interference