Origin of organic compounds in carbonaceous chondrites

摘要: Abstract Carbonaceous chondrites, a class of primitive meteorite, have long been known to contain their complement carbon largely in the form organic, i.e., hydrocarbon-related, matter. Both discrete organic compounds and an insoluble, macromolecular material are present. Several characteristics these materials provide evidence for abiotic origin. The principal formation hypotheses invoked chemistry occurring either solar nebula or on parent body. However, recent stable isotope analyses meteorite carboxylic acids amino indicate that they may be related interstellar cloud compounds. These results suggest scheme which were incorporated into body subsequently converted present suite organics by hydrothermal process believed formed clay minerals matrix.