Granulometric characteristics of lunar surface material from the Sea of Fertility

Details Granulometric characteristics of lunar surface material from the Sea of Fertility Granulometric characteristics of lunar surface material from the Sea of Fertility

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974lssf.nasa...51s&link_type=abstract

"In its Lunar Soil from the Sea of Fertility (NASA-TT-F-15881) p 51-60 (SEE N75-11814 02-91) Transl. into ENGLISH from the book

Mathematics

Probability

Granular Materials, Lunar Soil, Particle Density (Concentration), Particle Size Distribution, Lunar Geology, Lunar Maria, Lunar Surface, Lunik 16 Lunar Probe

Scientific paper

The particle size distributions in the 1-1000 micrometer range along the length of the core of lunar surface material returned by Luna 16 were recorded by electrical impulse as well as sieve methods. The measurements are represented in the form of cumulative functions of the logarithm of size versus the logarithm of particle number, and also as the logarithm of size versus particle mass on a probability scale. The former functions at all depths consist of the super-positioning of two straight lines with slopes from 2.10 to 4.05. The second functions are near linear, which together with the closeness of the calculated asymmetries of the distribution to zero and the nearness of the calculated excess of the distributions to unity indicate the closeness of the recorded distributions to the logarithmically normal law. This agrees with the assumption that regolith particles were formed in a process of intensive mechanical grinding.

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