Grain-size distribution of Luna-24 regolith samples

Details Grain-size distribution of Luna-24 regolith samples Grain-size distribution of Luna-24 regolith samples

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984avest..18....3r&link_type=abstract

(Astronomicheskii Vestnik, vol. 18, Jan.-Mar. 1984, p. 3-7) Solar System Research (ISSN 0038-0946), vol. 18, no. 1, July 1984, p

Astronomy and Astrophysics

Astronomy

Grain Size, Lunar Core, Particle Size Distribution, Regolith, Lunar Soil, Lunik Lunar Probes, Samples

Scientific paper

The grain-size distribution in Luna-24 cores has been determined from 1 mm to 40 microns by sieving, and below 40 microns by sedimentation. The distribution is approximately log-normal from 5 to 10 microns, while for smaller sizes the distribution has a surplus relative to the law. Mean particle sizes are 55-79 microns, with standard deviation 1.90-2.42 microns, and a mode in the 50-micron region. One may suggest, based on the grain-size data, that the Luna-24 soil was formed by a mixing of more mature, fine-grained materials with less-reworked, coarser materials.

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