applied anthropology
concepts
geography/geology
The magnetic phenomena exhibited by the earth and its atmosphere is known as geomagnetism. The strong magnetic field generated from deep within the earth is continually monitored and studied, allowing scientists valuable information for precise indexing of time (geochronology, paleomagnetism), determining crustal position (paleogeography), and abetting perhaps the most important revolution to unify modern geology: plate tectonics. [Source: Encyclopedia of Anthropology; Geomagnetism]
geomagnetism