Corrigendum to “Gas evolution during kerogen pyrolysis of Estonian Kukersite shale in confined gold tube system” [Org. G...
Published in Organic Geochemistry
Published in Organic Geochemistry
Published in Organic Geochemistry
Black carbon (BC) is the residue of incomplete biomass combustion. It is ubiquitous in nature and, due to its relative persistence, is an important factor in Earth’s slow-cycling carbon pool. This resistant nature makes pure BC one of the most used materials for 14C dating to elucidate its formation date or residence time in the environment. Howeve...
Published in Organic Geochemistry
Glycerol dialkyl glycerol tetraethers (GDGTs) preserved in speleothems can form useful records of terrestrial palaeotemperature. However, understanding of the sources of these compounds in caves is limited, particularly whether or not they should be considered as an in situ signal derived from microbial communities in the cave or vadose zone, a tra...
Published in Organic Geochemistry
Published in Organic Geochemistry
A combination of Rock-Eval pyrolysis and isotopic analyses is used to characterize the sources and distribution of organic matter in modern marine sediments from the subarctic Hudson Bay (including Hudson Strait and Foxe Basin), Canada. This approach reveals organic matter contributions from both marine and terrigenous sources, with spatial pattern...
Published in Organic Geochemistry
Stable and radiogenic carbon isotopes (δ13C and Δ14C) of organic compounds and phospholipid fatty acids (PLFAs), as well as polycyclic aromatic hydrocarbon (PAH) ratios were used to determine sources and fates of organic contaminants in highly contaminated, and less contaminated sediments of Hamilton Harbour. The highly contaminated sediments had a...
Published in Organic Geochemistry
Based on the outcrops, core samples, drilling cuttings, seismic and geochemical data, natural gases of the Sinian–Cambrian gas system were derived from four sets of over-mature, high quality source rocks. The Cambrian Qiongzhusi source rock is sapropelic, with TOC of 1.94%, Ro eq. of 1.83–3.90% and a thickness of 140m on average. The Sinian (620–54...
Published in Organic Geochemistry
Amending soil with black carbon (BC) can change the sorption properties of the soil. However, there is some concern based on studies that deal with newly produced BC and barely consider the possible changes in sorption properties for BC after being amended in soil. This study uses newly produced BC and historical BC samples, along with soils contai...
Published in Organic Geochemistry
Published in Organic Geochemistry
Based on molecular and stable carbon isotope composition of a large collection of gas samples and integrated with the geological context, this article discusses the genesis and migrational characteristics of natural gases from the giant tight sand gas fields of the Upper Paleozoic strata, Ordos Basin (UPOB). Our results show that the UPOB gas is mo...