Natural remanent magnetization

From Glossary of Meteorology

natural remanent magnetization

(Abbreviated NRM.) The permanent magnetism of a rock.

A rock may also have other types of magnetism, such as induced magnetism that may change when the rock is moved to another location in the geomagnetic field. The NRM does not change with another location but is "frozen" into the rock.

Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact [email protected]. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.