Terrestrial plant biomarkers and their carbon isotopes provide insights into carbon cycling,
paleovegetation and paleoclimate, ranging in scale from local to global. Over the past …

Hydrogen-isotopic abundances of lipid biomarkers are emerging as important proxies in the
study of ancient environments and ecosystems. A decade ago, pioneering studies made use …

Molecular organic geochemical proxies are increasingly being utilized to reconstruct past
environmental conditions as new tools continue to be discovered and developed. To date …

Leaf waxes (ie, n-alkyl lipids or n-alkanes) are land-plant biomarkers widely used to
reconstruct changes in climate and the carbon isotopic composition of the atmosphere …

Because atmospheric carbon dioxide is the ultimate source of all land-plant carbon, workers
have suggested that pCO2 level may exert control over the amount of 13C incorporated into …

Soil organic matter (SOM) consists of a vast range of biomolecules, but their individual
contribution to the biogeochemical cycling of nutrients and CO 2 release has eluded …

The extent to which leaf water D-enrichment (transpiration) and soil water D-enrichment
(evaporation) affect the D/H ratio of plant leaf waxes remains a contentious issue, with …

The carbon isotopic composition of individual plant leaf waxes (a proxy for C3 vs. C4
vegetation) in a marine sediment core collected from beneath the plume of Sahara-derived …

We measured hydrogen isotope compositions (δD) of high-molecular-weight n-alkanes
(C27–C33) from grasses grown in greenhouses and collected from the US Great Plains. In …

The invention of thermally resistant ceramic cooking vessels around 15,000 years ago was a
major advance in human diet and nutrition 1–3, opening up new food groups and …