Organic compounds in the Forest Vale, H4 ordinary chondrite

Details Organic compounds in the Forest Vale, H4 ordinary chondrite Organic compounds in the Forest Vale, H4 ordinary chondrite

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992gecoa..56.2899z&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 56, Issue 7, pp.2899-2905

Physics

9

Scientific paper

We have analyzed the H4 ordinary chondrite Forest Vale for polycyclic aromatic hydrocarbons (PAHs) using two-step laser mass spectrometry (L 2 MS) and for amino acids using a standard Chromatographic method. Indigenous PAHs were identified in the matrices of freshly cleaved interior faces but could not be detected in pulverized silicates and chondrules. No depth dependence of the PAHs was found in a chipped interior piece. Amino acids, taken from the entire sample, consisted of protein amino acids that were nonracemic, indicating that they are terrestrial contaminants. The presence of indigenous PAHs and absence of indigenous amino acids provides support for the contention that different processes and environments contributed to the synthesis of the organic matter in the solar system.

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