Mathematics – Probability
Scientific paper
Apr 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976lpsc....7...93h&link_type=abstract
In: Lunar Science Conference, 7th, Houston, Tex., March 15-19, 1976, Proceedings. Volume 1. (A77-34651 15-91) New York, Pergamon
Mathematics
Probability
3
Apollo 15 Flight, Core Sampling, Ferromagnetic Resonance, Lunar Core, Petrography, Agglutination, Grain Boundaries, Lunar Soil, Lunar Topography, Tables (Data), Vertical Distribution, Weight Measurement
Scientific paper
Detailed petrographic grain size, and ferromagnetic resonance studies were performed on a representative suite of samples from the Apollo 15 deep drill core. Petrographic analyses of the 90-150 micron size fraction show a subtle upward increase in the ratio of mare to highland components. The agglutinate content at the FMR intensity normalized to FeO show that the soils in the core are generally immature to submature. The most striking feature shown by the maturity indices is a systematic decrease in maturity from the lunar surface to a depth of about 40 cm. Although other mechanisms are possible, the downward decrease in maturity can be attributed to in situ reworking over a time span of 400 m.y. at a 50% probability.
Fruland Ruth M.
Heiken Grant H.
McKay David S.
Morris Richard V.
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