Magnetic properties of Apollo samples and implications for regolith formationThe magnetic properties of a number of Apollo 17 samples have been measured and confirm that regoliths of mare sites (Apollo 11, 12, 15 valley, and 17 valley) differ markedly from those of highland sites (Apollo 14, 16, and 17 massif) in the ratio of content of metallic to ferrous iron and in the grain size of metallic iron. The ratio of metallic to ferrous iron is correlated with mean particle size, a parameter representing maturity, for soils of Apollo 16 and roughly correlated with the age of the sites for soils of different sites. It is suggested that the ratio of metallic to ferrous iron may be an effective indicator of relative soil maturity for any one site and of the age of the soil material for any sites.
Document ID
19750055649
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Pearce, G. W. (Toronto, University Mississauga, Ontario, Canada)
Strangway, D. W. (Toronto, University Toronto, Canada)
Gose, W. A. (Lunar Science Institute Houston, Tex., United States)