PMID: 11539436Jan 1, 1994

Partial resolution of sources of n-alkanes in the saline portion of the Parachute Creek Member, Green River Formation (Piceance Creek Basin, Colorado)

Organic Geochemistry
J W CollisterJ M Hayes

Abstract

Systematic variations in the 13C contents of individual extractable n-alkanes (C16-C29) can be modelled quantitatively and interpreted as indicating contributions from at least five distinct sources. These appear to be cyanobacterial (C16-C18, delta 13C = -37% vs PDB), phytoplanktonic (C16-C23, delta = -32%), chemoautotrophic bacterial (C20-C29, delta = -38%), phytoplanktonic or heterotrophic bacterial (C20-C29, delta = -30%), and vascular plants (C23-C29, delta = -29%). Hydrous pyrolysis of related kerogens yields large quantities of additional n-alkanes with different and much more uniform delta values. The latter materials are apparently derived from the thermolysis of aliphatic biopolymers whose presence in the Green River Oil Shale has been recognized visually.

References

Jan 1, 1970·Archiv für Mikrobiologie·J G Jones, B V Young
Oct 1, 1969·Proceedings of the National Academy of Sciences of the United States of America·J Han, M Calvin
Dec 1, 1992·Organic Geochemistry·J W CollisterJ M Hayes
May 15, 1961·Proceedings of the National Academy of Sciences of the United States of America·P H ABELSON, T C HOERING
Jan 1, 1968·Proceedings of the National Academy of Sciences of the United States of America·J HanW H Bradley
Jan 31, 1969·Science·K WintersC Van Baalen
Apr 16, 1965·Science·P L Parker, R F Leo

Related Concepts

Cyanobacteria
Alkanes
Biopolymers
Vitreous Carbon
Carbon Isotopes
Environmental Microbiology
Marine Hydrobiology
Phytoplankton
Sediments, Marine

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