The carbon isotopic composition of the marine diatom Phaeodactylum tricornutum (δ13Cp)
was measured over a series of growth rates (μ) in a continuous culture system in which both …

Reports of the 13C content of marine particulate organic carbon are compiled and on the
basis of GEOSECS data and temperatures, concentrations, and isotopic compositions of …

The biological source of sedimentary organic matter can be inferred from detailed chemical
studies on the structure of individual molecules extracted from sediments. These inferences …

Variations in the carbon and nitrogen isotopic composition of bulk organic matter in the
sediments of Lake Bosumtwi, Ghana reflect climatically induced changes to the lake and the …

THE organic matter found in sedimentary rocks must derive from many sources; not only
from ancient primary producers but also from consumers and secondary producers. In all of …

The differing patterns of molecular abundances in organisms are fundamental to the
understanding of the biomolecular palaeontological record. All organisms contain DNA …

Excellent hydrocarbon source rocks (oil shales), containing Type I organic matter (OM), were
deposited in the continental Songliao rift basin during the Late Cretaceous. A major …

Experiments with cultured aerobic methane oxidising bacteria confirm that their biomarker
lipids will be significantly depleted in 13 C compared to the substrate. The methanotrophic …

Since the mid-1960s, following a century of unrewarded search, impressive progress has
been made toward deciphering the Precambrian fossil record, evidence of life extant during …

The theory and use of geochemical modeling of the long-term carbon cycle and four paleo-
PCO2 proxies are reviewed and discussed in order to discern the best applications for each …