NASA Technical Translation, Oplag 802

asteroids Atarg atmosphere aubrite average bronzite Bronzite chondrite Bruderheim calculated carbonaceous chondrites chemical composition chon chondrules collisions Commas cosmic age cosmic ray intensity cosmogenic isotopes curves dark decreases deep spallation dependence depth distribution dimensions disint/min-kg drite Earth elements energy spectrum enstatite chondrites eucrites excitation functions flux formation formed fragments galactic cosmic ray high energy hypersthene increases indicate decimal points inert gases interaction iron meteorites iron phase irradiated isobaric isotopic composition kamacite maximum mesons mesosiderites meteorites of various meteoritic matter million minerals modulation neutrons nickel nuclear active particles nuclear reactions nuclei nucleons numbers indicate decimal observed obtained octahedrites olivine orbits ordinary chondrites pallasites primordial production cross sections protons protoplanetary nebula pyroxene radiogenic ratio region Ep Renazzo samples secondary particles silicate solar system spallation stony meteorites structure surface layers Table target temperature theoretical tion troilite values variations