Other
Scientific paper
Jan 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977rspta.284..151s&link_type=abstract
Royal Society (London), Philosophical Transactions, Series A, vol. 284, no. 1319, Jan. 4, 1977, p. 151-156.
Other
1
Fines, Lunar Rocks, Magnetic Properties, Iron, Lunik 16 Lunar Probe, Lunik 20 Lunar Probe, Magnetic Permeability, Magnetization, Paramagnetism, Remanence
Scientific paper
The natural remanent magnetization of rock fragments L2015,3,1 and L2015,3,11 was found to be less than 0.00000035 and less than 0.000040 G cu cm per gram, respectively. The former sample, from isothermal remanent magnetization (IRM) measurements, contained very little iron, while the latter sample had a much higher iron content and exhibited IRM characteristics similar to breccia samples from Apollo missions. Susceptibility and IRM measurements have shown that Luna 16 fines contain about four times as much iron as Luna 20 samples and that the light fractions from the density separations contain about twice as much iron as the heavy fraction. Like the Apollo fines, the magnetic behavior of Luna 16 and 20 fines is dominated by small iron particles, most of which are superparamagnetic and of grain size less than about 13 nm.
Collinson D. W.
Runcorn S. K.
Stephenson Andrew
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