Organic Geochemistry

(The TQCC of Organic Geochemistry is 6. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-07-01 to 2024-07-01.)
Molecular heterogeneity in pyrogenic dissolved organic matter from a thermal series of oak and grass chars36
Polycyclic aromatic hydrocarbons in Middle Jurassic sediments of the Polish Basin provide evidence for high-temperature palaeo-wildfires32
Correlation between the ratio of 5-methyl hexamethylated to pentamethylated branched GDGTs (HP5) and water depth reflects redox variations in stratified lakes31
Development of an in situ branched GDGT calibration in Lake 578, southern Greenland27
Controlled lacustrine microcosms show a brGDGT response to environmental perturbations24
New approaches to distinguish shale-sourced and coal-sourced gases in petroleum systems22
Insights into catalytic effects of clay minerals on hydrocarbon composition of generated liquid products during oil cracking from laboratory pyrolysis experiments22
Evaluating different methods for calculating the Carbon Preference Index (CPI): Implications for palaeoecological and archaeological research21
Stable isotopes of organic carbon, palynology, and petrography of a thick low-rank Miocene coal within the Mile Basin, Yunnan Province, China: implications for palaeoclimate and sedimentary conditions21
Practical considerations for amino acid isotope analysis20
Glycerol dialkyl glycerol tetraethers in surface sediments from three Pacific trenches: Distribution, source and environmental implications19
Position-specific carbon isotopic composition of thermogenic propane: Insights from pyrolysis experiments19
Temperature and water depth effects on brGDGT distributions in sub-alpine lakes of mid-latitude North America18
Kinetics of propane cracking and position-specific isotope fractionation: Insights into the origins of natural gases18
Geochemical implications from direct Rock-Eval pyrolysis of petroleum18
Identifying plant wax inputs in lake sediments using machine learning18
Determination of in situ hydrocarbon contents in shale oil plays. Part 1: Is routine Rock–Eval analysis reliable for quantifying the hydrocarbon contents of preserved shale cores?17
Cover loss in a seagrass Posidonia oceanica meadow accelerates soil organic matter turnover and alters soil prokaryotic communities17
Stable carbon isotope evidence for the origin of C28 steranes in lacustrine source rocks from the Qikou Sag, Bohai Bay Basin, Eastern China17
C41 methyl and C42 ethyl alkenones are biomarkers for Group II Isochrysidales17
Composition and lability of photochemically released dissolved organic matter from resuspended estuarine sediments16
Molecular mechanisms of solid bitumen and vitrinite reflectance suppression explored using hydrous pyrolysis of artificial source rock16
Organic biogeochemistry in the oxygen-deficient ocean: A review16
Carbon isotope systematics of leaf wax n-alkanes in a temperate lacustrine depositional environment16
Possible explanations for the predominance of tricyclic terpanes over pentacyclic terpanes in oils and rock extracts16
Conifers are a major source of sedimentary leaf wax n-alkanes when dominant in the landscape: Case studies from the Paleogene16
Influence of environmental parameters on the distribution of bacterial lipids in soils from the French Alps: Implications for paleo-reconstructions15
Sedimentary core brGDGTs in the East China Sea are mainly produced in situ as evidenced by their similar distributions with brGDGTs derived from intact polar lipids15
Comparison of molecular distributions and carbon and hydrogen isotope compositions of n-alkanes from aquatic plants in shallow freshwater lakes along the middle and lower reaches of the Yangtze River,14
Plant wax evidence for precipitation and vegetation change from a coastal sinkhole lake in the Bahamas spanning the last 3000 years14
Soil pH and aridity influence distributions of branched tetraether lipids in grassland soils along an aridity transect14
Soil chemistry, temperature and bacterial community composition drive brGDGT distributions along a subarctic elevation gradient14
Controls on the age of plant waxes in marine sediments – A global synthesis14
Experimental and theoretical study on the formation of volatile sulfur compounds under gas reservoir conditions13
In-situ provenance of brGDGTs in peat sediments: A case study from southern China and a comparison of global results13
Hydrogen isotope fractionation in modern plants along a boreal-tundra transect in Alaska13
Characterisation of heteroatomic compounds in free and bound bitumen from different source rocks by ESI FT-ICR MS13
Molecular and optical characterization reveals the preservation and sulfurization of chemically diverse porewater dissolved organic matter in oligohaline and brackish Chesapeake Bay sediments12
Petrological and geochemical characteristics of xylites and associated lipids from the First Lusatian lignite seam (Konin Basin, Poland): Implications for floral sources, decomposition and environment12
Elucidating the formation pathway of photo-generated asphaltenes from light Louisiana sweet crude oil after exposure to natural sunlight in the Gulf of Mexico12
Effects of temperature and pH on archaeal membrane lipid distributions in freshwater wetlands12
Dynamic changes in leaf wax n-alkanes and δ13C during leaf development in winter wheat under varied irrigation experiments12
Molecular composition of dissolved organic matter in saline lakes of the Qing-Tibetan Plateau12
Catchment-wide variations and biogeochemical time lags in soil fatty acid carbon isotope composition for different land uses: Implications for sediment source classification11
Plant wax and carbon isotope response to heat and drought in the conifer Juniperus monosperma11
Precise maturity assessment over a broad dynamic range using polycyclic and heterocyclic aromatic compounds11
Mechanistic insights into sulfur rich oil formation, relevant to geological carbon storage routes. A study using (+) APPI FTICR-MS analysis11
Efficiency of sympagic-benthic coupling revealed by analyses of n-3 fatty acids, IP25 and other highly branched isoprenoids in two filter-feeding Arctic benthic molluscs: Mya truncata and Serripes gro11
Reappraisal of archaeal C20-C25 diether lipid (extended archaeol) origin and use as a biomarker of hypersalinity11
Substantial maturity influence on carbon and hydrogen isotopic composition of n-alkanes in sedimentary rocks11
Bound hydrocarbons and structure of pyrobitumen rapidly formed by asphaltene cracking: Implications for oil–source correlation10
Diverse origins of “soil marker” bacteriohopanepolyols in marine oxygen deficient zones10
Targeted and untargeted lipidomic analysis of haptophyte cultures reveals novel and divergent nutrient-stress adaptations10
Molecular and stable isotope analysis (δ13C, δ2H) of sedimentary n-alkanes in the St. Lawrence Estuary and Gulf, Quebec, Canada: Importance of even numbered n-alkanes in coastal systems10
An application of exploratory factor analysis in the deconvolution of heavy oil biodegradation, charging and mixing history in southeastern Mexico10
Spatiotemporal variations of organic matter sources in two mangrove-fringed estuaries in Hainan, China10
Fingerprint of plant life in the Atacama Desert – Insights from n-alkane analyses10
A novel biodegradation parameter derived from bicyclic sesquiterpanes for assessing moderate levels of petroleum biodegradation10
Microbial lipid signatures in Arctic deltaic sediments – Insights into methane cycling and climate variability10
The impact of precipitation on the distributions of branched tetraethers in alkaline soils9
Petroleum generation and migration in the southern Tyumen region, Western Siberia Basin, Russia9
Assessment of the molecular-level compositional heterogeneity of natural organic matter in bentonites intended for long-term used nuclear fuel storage9
Multi-proxy approach involving ultrahigh resolution mass spectrometry and self-organising maps to investigate the origin and quality of sedimentary organic matter across a subtropical reservoir9
The molecular and sulfur isotope distribution of volatile compounds in natural gases and condensates from Alberta, Canada9
Source, composition, and distributional pattern of branched tetraethers in sediments of northern Chinese marginal seas9
Elucidation of the macromolecular composition of fossil biopolymers using Py-GC×GC-TOFMS9
Identifying marine and freshwater overprints on soil-derived branched GDGT temperature signals in Pliocene Mississippi and Amazon River fan sediments9
Diamondoids in petroleum: Their potential as source and maturity indicators9
Carbon isotopic composition of leaf wax n-alkanes in mangrove plants along a latitudinal gradient in Brazil9
Composition and lability of riverine dissolved organic matter: Insights from thermal slicing ramped pyrolysis GC–MS, amino acid, and stable isotope analyses9
Integration of methyldibenzothiophene and pyrolysis techniques to determine thermal maturity in sulfur-rich Type II-S source rocks and oils9
Hydrocarbon transformations in sediments from the Cathedral Hill hydrothermal vent complex at Guaymas Basin, Gulf of California – A chemometric study of shallow seep architecture9
Assessment of oil potentials for humic coals on the basis of flash Py-GC, Rock-Eval and confined pyrolysis experiments9
Composition of resinites from the Eocene Geiseltal brown coal basin, Saxony-Anhalt, Germany and comparison to their possible botanical analogues9
Oil-source and oil-oil correlations and the origin of the heavy oil and bitumen accumulations in Northern Alberta, Canada9
Influence of hydrothermal vent activity on GDGT pool in marine sediments might be less than previously thought8
Fourier transform ion cyclotron resonance mass spectrometric analysis of NSO-compounds generated in hydrothermally altered sediments from the Escanaba Trough, northeastern Pacific Ocean8
Revisiting the precursors of the most abundant natural products on Earth: A look back at 30+ years of bacteriohopanepolyol (BHP) research and ahead to new frontiers8
Evaluation of the tight oil “sweet spot” in the Middle Permian Lucaogou Formation (Jimusaer Sag, Junggar Basin, NW China): Insights from organic petrology and geochemistry8
Molecular n-alkyl leaf waxes of three dominant plants from the temperate forest in South America8
Methylation and demethylation of naphthalene homologs in highly thermal mature sediments8
Extended series of tricyclic terpanes in the Mesoproterozoic sediments8
GDGTs as indicators for organic-matter sources in a small subtropical river-estuary system8
Unravelling the impact of lithofacies on the composition of NSO compounds in residual and expelled fluids of the Barnett, Niobrara and Posidonia formations8
Gas generation and intramolecular isotope study in laboratory pyrolysis of the Springfield coal from the Illinois Basin7
Impact of selective degradation on molecular isotope compositions in oxic and anoxic marine sediments7
Imprint of Kairei and Pelagia deep-sea hydrothermal systems (Indian Ocean) on marine dissolved organic matter7
Understanding the disparity in n-alkane production among angiosperms and gymnosperms from the higher Himalayas: Inferences drawn from a Machine Learning approach7
Lipid biomarker estimates of seasonal variations of aerosol organic carbon sources in coastal Qingdao, China7
Characterizing ecosystem-driven chemical composition differences in natural and drained Finnish bogs using pyrolysis-GC/MS7
Phosphorus limitation affects the molecular composition of Thalassiosira weissflogii leading to increased biogenic silica dissolution and high degradation rates of cellular carbohydrates7
Biomarkers reveal Eocene marine incursions into the Qaidam Basin, north Tibetan Plateau7
Deconvolution of post- and pre-salt petroleum sources in southeastern offshore Brazilian basins7
Monoterpenylabietenoids, novel biomarkers from extant and fossil Taxodioideae and sedimentary rocks7
Revisiting paleoenvironmental analyses and interpretations of organic-rich deposits: The importance of TOC corrections7
Hydrothermal experiments involving methane and sulfate: Insights into carbon isotope fractionation of methane during thermochemical sulfate reduction7
Robust determination of kerogen properties in organic-rich mudrocks via Raman Spectroscopy7
Effects of environmental history and post-depositional processes on the organic matter record of Lake Łebsko, Poland7
Pyrolysis of 1-methylnaphthalene involving water: Effects of Fe-bearing minerals on the generation, C and H isotope fractionation of methane from H2O-hydrocarbon reaction7
New paleoenvironmental proxies for the Irati black shales (Paraná Basin, Brazil) based on acidic NSO compounds revealed by ultra-high resolution mass spectrometry7
Effects of Mississippi valley-type minerogenetic metal sulfates on thermochemical sulfate reduction, studied by hydrous pyrolysis7
Evaluation of anhydrosugars as a molecular proxy for paleofire activity: A case study on a Holocene sediment core from Agios Floros, Peloponnese, Greece7
Carbon and hydrogen isotopic variations in gold tube gas pyrolysates from an Athabasca oil sand6
Triaromatic dinosteroids – Isomeric distributions and their geochemical significance6
Fluorescence lifetime evolution of crude oils during thermal cracking: Implications from pyrolysis experiments in a closed system6
Organic geochemical heterogeneity of the Cretaceous Abu Gabra Formation and reassessment of oil sources in the Sufyan sub-basin, Sudan6
Molecular and carbon isotope composition of hydrocarbons from ambers of the Eocene Shenbei coalfield (Liaoning Province, NE China)6
Quantitative and specific recovery of natural organic and mineral sulfur for (multi-)isotope analysis6
NSO-compounds in oil-bearing fluid inclusions revealed by FT-ICR-MS in APPI (+) and ESI (−) modes: A new method development6
Analysis of non-derivatized bacteriohopanepolyols using UHPLC-HRMS reveals great structural diversity in environmental lipid assemblages6
Isotopic evidence for the formation of 25-norhopanes via in situ biodegradation in the Permian Lucaogou shales, southern Junggar Basin6
Unusual 13C depletion in the central carbon of propane in the gases of Longmaxi shale in the Sichuan Basin6
Extended chain length alkenoates differentiate three Isochrysidales groups6
Investigation of the maturation effects on biomarker distributions in bituminous coals6
Distinct sources of bacterial branched GMGTs in the Godavari River basin (India) and Bay of Bengal sediments6
Characteristics of light hydrocarbons under the superimposed influence of biodegradation and subsequent thermal maturation6
Group 2i Isochrysidales flourishes at exceedingly low growth temperatures (0 to 6 °C)6