Evidence for porphyrins in early precambrian Swaziland System sediments

Details Evidence for porphyrins in early precambrian Swaziland System sediments Evidence for porphyrins in early precambrian Swaziland System sediments

Oct 1969

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969gecoa..33.1195k&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 33, Issue 10, pp.1195-1202

Physics

8

Scientific paper

Small concentrations of porphyrins have been found in samples of Fig Tree shale (5 × 10 -6 g/g) and Onverwacht chert (5 × 10 -5 g/g) from Swaziland System sediments of South Africa. These sediments are more than 3 billion years old. The origin of these porphyrins is not known, but they are believed to be indigenous to the samples. The porphyrins may be relics of an ancient biochemistry.

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