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

Abstract Analysis of the stable carbon isotopes (δ 13 C) in organic material in various
geological archives has been widely used for paleoclimatic reconstruction. Consequently, it …

Long chain (C 21 to C 37) n-alkanes are among the most long-lived and widely utilized
terrestrial plant biomarkers. Dozens of studies have examined the range and variation of n …

The organic matter content of lake sediments contains information that helps to reconstruct
past environmental conditions, evaluate histories of climate change, and assess impacts of …

9. SEDIMENT ORGANIC MATTER Department of Geological Sciences The University of
Michigan Ann Arbor, MI 48109-1063 USA Geosciences Page 1 9. SEDIMENT ORGANIC …

Terra Preta soils of central Amazonia exhibit approximately three times more soil organic
matter, nitrogen and phosphorus and 70 times more charcoal compared to adjacent infertile …

The present-day state as well as the history of isotope organic geochemistry is reviewed.
Theoretical aspects of isotope fractionation in a system of complex organic molecules …

The distributions of long chain n-alkanes are often utilized as plant-derived
paleoenvironmental proxies. However, there is debate regarding the degree to which …

High resolution records for long chain n-alkane and n-alkanol biomarkers have been
obtained by extraction of sediments from the profiles of Luochan (0–36ka) and Xunyi (0 …

The distribution of C3 and C4 plants changed in regionally contrasting ways during the last
glacial period. C4 plant expansion in low-latitude Africa and America coincided with C4 …