Amino acids from the Late Precambrian Thule Group, Greenland

Details Amino acids from the Late Precambrian Thule Group, Greenland Amino acids from the Late Precambrian Thule Group, Greenland

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982orli...12..215a&link_type=abstract

Origins of Life, Volume 12, Issue 2, pp.215-227

Physics

Scientific paper

Amino acids were recovered at a concentration level of 10-9 M/g from the interior of chert and dolomite of the Late Precambrian Thule Group. Examination of the stability of amino acids in chert under dry-heating conditions suggests that these amino acids have been preserved with a predominance of L-enantiomers in the Precambrian chert. Enantiomer analysis of amino acids in dolomite showed a thermal effect resulting from a late Precambrian igneous intrusion. This evidence indicates that the amino acids isolated from the Thule samples were chemical fossils and not recent contaminants.

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