The frequency dependence of the viscous component of the magnetic susceptibility of lunar rock and soil samples

Details The frequency dependence of the viscous component of the magnetic susceptibility of lunar rock and soil samples The frequency dependence of the viscous component of the magnetic susceptibility of lunar rock and soil samples

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976e%26psl..32...45h&link_type=abstract

Earth and Planetary Science Letters, vol. 32, no. 1, Sept. 1976, p. 45-50.

Physics

Lunar Rocks, Lunar Soil, Magnetic Permeability, Viscosity, Breccia, Frequency Response, Magnetometers

Scientific paper

The susceptibility of two lunar samples (a soil and a low metamorphic grade breccia) has been measured in a weak field - 0.001 Oe - and as a function of frequency from 0.032 to 1.0 Hz. The measurements were made using a superconducting magnetometer. The results show that the susceptibility decreases linearly with the log of frequency. This observation is in agreement with a theoretical model for viscous decay based on the Neel theory of single-domain and superparamagnetic grains. The relation derived agrees with a model in which there is a uniform distribution of relaxation times.

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