Computer Science
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974lssf.nasa...61f&link_type=abstract
"In its Lunar Soil from the Sea of Fertility (NASA-TT-F-15881) p 61-68 (SEE N75-11814 02-91) Transl. into ENGLISH from the book
Computer Science
Geomorphology, Granular Materials, Lunar Maria, Lunar Soil, Lunar Geology, Lunar Rocks, Lunar Surface, Lunik 16 Lunar Probe, Particles
Scientific paper
A study was made of the shape of regolith particles in the 0.5 to 1.0 mm fraction; two parameters were calculated for this fraction: (1) Sphericity -- the ratio of the projection area of a particle to the area of the minimum circumscribed circle; and (2) the ratio of the perimeter of the projection of the particle to the perimeter of a circle having the same width. For comparison, this technique was used in studying geometrical figures and terrestrial formations: sands, slags of present day volcanoes, and crushed basalt. It was established that regolith particles are shaped from the following groups: spherules; breccias and fragments; slags and sinters. Regolith differs sharply from ordinary homogeneous terrestrial formations in the diversity of particle shapes, associated with their polygenicity. Fragments of crushed basalt are less regular than fragments of basalt from regolith.
Belenkiy V. Y.
Florenskiy P. V.
Karachentseva N. M.
Pankratova L. F.
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