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Permanent magnetism in rocks, resulting from the orientation of the Earth's magnetic field at the time of rock formation in a past geologic age. It is a source of information for the paleomagnetic studies of polar wandering and plate tectonics.
Variants of PALEOMAGNETISM
paleomagnetism or palaeomagnetism or remanent magnetism
This entry comes from Encyclopædia Britannica Concise. For the full entry on paleomagnetism, visit Britannica.com.