Origins of etioporphyrins in sediments - Evidence from stable carbon isotopes

Details Origins of etioporphyrins in sediments - Evidence from stable carbon isotopes Origins of etioporphyrins in sediments - Evidence from stable carbon isotopes

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gecoa..53.2451b&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 53, Sept. 1989, p. 2451-2455. Research supported by the Petroleum Researc

Physics

3

Carbon Isotopes, Geochemistry, Porphyrins, Sediments, Australia, Marine Chemistry, Organic Materials

Scientific paper

In samples of the Julia Creek and Condor oil shales (Australia, Albian, and early Tertiary, respectively) etioporphyrin III is significantly depleted in C-13 (4 per mil) relative to porphyrins derived from chlorophylls. This isotopic difference suggests a large contribution from some independent source. The haem group found in cytochromes derived from microbial sources is the most likely candidate.

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