Meteorites: A Petrologic-chemical Synthesis

abundant accretion ages aggregates analyses Anders Angra dos Reis appears association asteroids basis breccias carbonaceous chondrites Chapter chemical chon chondrules classification clasts CM chondrites components composition condensation consistent contain contents crystals cumulate detail diogenites discussed distribution Dodd drites early elements enstatite chondrites et al eucrites evidence fall Figure formation formed fractionation groups indicate inferred interpretation iron meteorites isotopic Larimer latter less liquids LL-group lunar major material matrix McSween mean melting metal metamorphism mineral mineralogy minor nebular nickel noted objects observed occur olivine ordinary chondrites origin oxygen pallasites parent bodies petrologic type phases pigeonite plagioclase possibility present pressure processes pyroxene ratios Rb-Sr recent reflect relationship remains rocks samples separated shock silicate similar solar suggest summarized Table temperatures texture tion trends troilite ureilites variations vary volatile elements Wasson wide