Constraints on the origins of lunar magnetism from electron reflection measurements of surface magnetic fields

Details Constraints on the origins of lunar magnetism from electron reflection measurements of surface magnetic fields Constraints on the origins of lunar magnetism from electron reflection measurements of surface magnetic fields

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pepi...20..271l&link_type=abstract

(Topical Conference on Origins of Planetary Magnetism, Houston, Tex., Nov. 8-11, 1978.) Physics of the Earth and Planetary Inter

Physics

10

Lunar Magnetic Fields, Lunar Surface, Magnetic Measurement, Satellite Observation, Apollo 15 Flight, Apollo 16 Flight, Constraints, Electron Distribution, Highlands, Lunar Craters, Lunar Maria, Lunar Probes, Magnetic Anomalies, Magnetic Mirrors, Magnetization

Scientific paper

The paper describes a new method of detecting lunar surface magnetic fields, summarizes electron reflection measurements and correlations of surface field anomalies to moon geologic features, and discusses the constraints on the origin of lunar magnetism. Apollo 15 and 16 measurements of lunar surface magnetic fields by the electron reflection method show patches of strong surface fields distributed over the lunar surface, and a positive statistical correlation is found in lunar mare regions between the surface field strength and the geologic age of the surface. However, there is a lack of correlation of surface field with impact craters indicating that the mare does not have a strong large-scale uniform magnetization as may be expected from an ancient lunar dynamo. Fields were found in lunar highlands which imply that the rille has a strong magnetization associated with it as intrusive, magnetized rock or as a gap in a uniformly magnetic layer of rock.

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