Email this article Carbon Isotope Composition and Concentration of Fe-Group Elements in the Sedimentary Organic Matter from Rocks of Different Ages
- Authors: Felitsyn S.B.1, Alfimova N.A.1,2
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Affiliations:
- Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
- Institute of Earth Sciences, St. Petersburg State University
- Issue: Vol 53, No 7 (2019)
- Pages: 757-765
- Section: Article
- URL: https://journals.rcsi.science/0031-0301/article/view/168764
- DOI: https://doi.org/10.1134/S0031030119070037
- ID: 168764
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Abstract
The Fe/Co ratio (ppm) in the kerogen from different-aged clastic sediments (Early Proterozoic–Mesozoic) varies from 17 to 4100, and δ13C value varies from –14.8 to –32.6‰. The relationship between Fe/Co and δ13C is determined by the composition of microbial biota in paleobasins and superimposed metamorphic processes. The kerogen from the Vendian deposits of the East European Platform, containing a large amount of saprophytes and actinomycetes is characterized by the maximum Co concentration. The kerogen from deposits metamorphosed under amphibolite-facies conditions are characterized by the minimal δ13C and the maximum Fe/Co ratio values.
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About the authors
S. B. Felitsyn
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Author for correspondence.
Email: felitsynsergey@gmail.com
Russian Federation, St. Petersburg, 199034
N. A. Alfimova
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences; Institute of Earth Sciences, St. Petersburg State University
Author for correspondence.
Email: n.alfimova@spbu.ru
Russian Federation, St. Petersburg, 199034; St. Petersburg, 199034
