Magnetism and the History of the Moon

Details Magnetism and the History of the Moon Magnetism and the History of the Moon

Jan 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973aipc...10.1178s&link_type=abstract

MAGNETISM AND MAGNETIC MATERIALS - 1972: Eighteenth Annual Conference. AIP Conference Proceedings, Volume 10, pp. 1178-1196 (19

Physics

5

Scientific paper

All lunar samples measured to date contain a weak but stable remanent magnetization of lunar origin. The magnetization is carried by metallic iron and is considered to be caused by cooling from above the Curie point in the presence of a magnetic field. Although at present the moon does not have a global field, the remanent magnetization of the rock samples and the presence of magnetic anomalies, both on the near and far side of the moon, imply that the moon experienced a magnetic field during some portion of its history. The field could have been generated in a liquid iron core sustaining a self-exciting dynamo, but there are some basic thermal and geochemical objections that need to be resolved.

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