Computer Science
Scientific paper
Oct 1973
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973stia...7512424c&link_type=abstract
American Society of Civil Engineers, Soil Mechanics and Foundations Division, Journal, vol. 99, Oct. 1973, p. 813-832.
Computer Science
Density (Mass/Volume), Lunar Soil, Mineralogy, Particle Size Distribution, Apollo 15 Flight, Glass, Grain Boundaries, Lunar Evolution, Lunar Landing Sites, Meteorite Collisions, Textures
Scientific paper
Characteristics of lunar soil are examined. The paper includes topics such as lunar soil genesis, particle types, grain size distribution, grain shape distribution, specific gravity, minimum and maximum density, and relative density. Lunar soil, consisting of complex mixtures of mineral fragments, miscellaneous glasses, agglutinates, and lithic fragments, is produced primarily by meteorite impacts. The grain size distributions for soils exposed to meteorite reworking for 100 million yr or more are classified as well-graded silty sands and sandy silts. The specific gravity of submillimeter lunar soil samples varies from 2.9 to 3.24 and individual particles range from 1.0 to greater than 3.32. Differences in specific gravity, intragranular porosity, particle shape, surface texture, and grain arrangements result in wide ranges in minimum and maximum densities. Meteorite impacts cause in situ lunar soil to have a low relative density at the surface which increases rapidly to a very high relative density at depths greater than 10 cm to 20 cm.
Carrier III W.
Mahmood Akhtar
Mitchell Kenneth J.
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