By S. Chandrasekhar, Space
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Because of the atmospheric entry conditions, weathering at the earth's surface and the unknown statistical parameters connected with the finding of meteorites, an estimate of the bulk chemistry of the flux on the basis of terrestrial finds is at best difficult. , 197 3 ) : 1. Micrometeoroids and small meteoroids in the soil. 2. Crater forming bodies in ray material and other ejecta. 3. Planetesimals from the early intense bombardment of the moon in ancient breccias and highland soils. Few meteoritic particles survive a hypervelocity impact.
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A. R . , 1973. Subsatellite measurements of the lunar magnetic field. Proc. Fourth Lunar Sci. , Suppl. 4, Geochim. 283 3-2845. shaler, N. , 1903. A comparison of features of the earth and the moon. Smithsonian Contr. now ledge, 34, pt. 1 , 130 pp. Sonett, C. , Colburn, D. , Parking, C. , Smith, B. , Schumbert, G. , 1971. Lunar electrical conductivity profile. Nature, 2 3 0 . 359-362. Sonett, C. , 1974. Evidence of a primodial solar wind. Proc. , Inst. of ~ e o p h y s i c sand Planetary Physics, Univ.