The Soviet-American Conference on Cosmochemistry of the Moon and Planets, المجلد 2

16 and Luna abundances accretion albedo Allende anorthosite Apollo 16 asteroids b.y. ago basins bodies breccias carbonaceous chondrites chemical clasts comets component composition condensation cosmic rays Cosmochimica Acta crystals curve depth diameter distribution Earth Planet ejecta exposure age Figure flux formation Fourth Lunar Science fraction fragments g/cm³ Geochimica et Cosmochimica glass grains highland hydrolysable carbon Imbrium impact craters initial iron isotopic km/s layer light-gray breccia Luna 16 Luna 20 lunar rocks Lunar Samples Lunar Science Conference Lunar Science Institute lunar soil lunar surface Lunokhod mass material measurements ments meteorite meteoroid microcraters micrometeoroid mineral Moon observed olivine orbits particles percent plagioclase planetary planetesimals Proc projectile pyroxene Rb-Sr region regolith relative satellite siderophile solar nebula solar system South Ray Crater spectra studies Supplement temperature terrestrial Third Lunar Science tion Trace Elements track density troctolites volatiles zone