Computer Science
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002stin...0244096b&link_type=abstract
Technical Report, Rept-97-1312
Computer Science
Amino Acids, Antarctic Regions, Chondrites, Ice, Snc Meteorites, Carbon, Contaminants, Isotopes, Mars Surface, Polycyclic Aromatic Hydrocarbons
Scientific paper
Highly sensitive amino acid analyses were carried out on the Mars meteorites ALH84001 and Nakhla, the lunar meteorite MAC81005, the H5 chondrite LEW85320 and in Antarctic Allan Hills ice and sediments from the Nile delta. Measurements of amino acid abundance profiles and enantiomeric (D/L) ratios in these various meteorites in comparison to terrestrial samples where the meteorites fell provided an unambiguous way of determining that the amino acids detected in the Martian meteorites are terrestrial contaminants. Polycyclic aromatic hydrocarbons (PAHs) in ALH84001 and ice samples were also analyzed as was the carbon isotopic composition of the total organic carbon. The PAHs in ALH84001 are also probably terrestrial contaminants. However, the carbon isotopic composition of the total organic material in ALH84001 suggests that some martian organic material may be present but the likely source is the infall of meteoritic debris to the Martian surface.
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