… be of benthic microbial mat origin. Table 2.2: Carbon isotopic composition and TOC of
black shales of benthic microbial mat origin (S13Cbs, TOCbs); of associated shales (813Cbkg(1, …

… Additionally, the Eocene Green River shale was used as a … calibrated by using CO 2 gas of
known isotopic composition. … the biodegradation rates of organic molecules, including sterols. …

… understanding the origin and fate of organic molecules and their … cycles, that their stable
isotopic compositions (δ 13 C values) could … of constituents of the Green River shale (8), and this …

… in black shale and green chert, antedates the evolution of … and the isotopic composition of
large organic molecules can … the Eocene Green River Formation, Utah (oil shale formation)…

… coals and shales containing coaly organic matter (coaly shales) … or geochemical fossils
are organic compounds found in … of Campano-Maastrichtian to Eocene ages. It is logical to …

… molecular studies include dated phylogenies that differ in their estimated times of origin of
… specimens include both the “part” and “counterpart”, ie., both sides of a split piece of shale …

… blue-black, ammonite-rich, open marine shale which are occasional gypsiferous and with …
isotopic compositions and palynofacies data have been used to examine the origin of organic …

… reported in plant-derived organic sediments (eg, oil shales [7,8,… of breaking down organic
molecules, photosynthesis captures … Additionally, there was a shift in sulfur isotopic signatures …

… hydrocarbon molecular markers, studies on the isotopic composition of polycyclic aromatic …
Isotopic compositions and probable origins of organic molecules in the Eocene Messel shale […

… the evolution of microorganisms, and understanding on-going diagenetic processes. …
sources are likely involved in explaining depleted β-isorenieratane carbon isotopes. Overall…