Origins of etioporphyrins in sediments: Evidence from stable carbon isotopes
Abstract
In samples of the Julia Creek and Condor oil shales (Australia, Albian, and early Tertiary, respectively) etioporphyrin III is significantly depleted in 13C (4%.) 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.
- Publication:
-
Geochimica et Cosmochimica Acta
- Pub Date:
- September 1989
- DOI:
- 10.1016/0016-7037(89)90368-2
- Bibcode:
- 1989GeCoA..53.2451B
- Keywords:
-
- Carbon Isotopes;
- Geochemistry;
- Porphyrins;
- Sediments;
- Australia;
- Marine Chemistry;
- Organic Materials