Book ChapterDOI
Organic Matter Sources in the Black Sea as Inferred from Hydrocarbon Distributions
Stuart G. Wakeham,Joy A. Beier,C. Hovey Clifford +2 more
- pp 319-341
TLDR
In this paper, sediment and fecal pellets from Unit I sediments were collected in the central basin of the Black Sea for organic geochemical investigations and the hydrocarbon compositions of these samples proved informative for providing information on the sources for the particulate and sedimentary organic matter.Abstract:
Suspended and sinking particulate matter from the water column and sediment and fecal pellets from Unit I sediments were collected in the central basin of the Black Sea for organic geochemical investigations. The hydrocarbon compositions of these samples proved informative for providing information on the sources for the particulate and sedimentary organic matter. Hydrocarbons derived from planktonic, terrestrial, bacterial, and fossil sources can be distinguished. Plankton-derived hydrocarbons dominated the 53 µm particles. By contrast, 53 µm) particles in the anoxic zone contained equal amounts of hydrocarbons from all four sources. Fecal pellets and sediments contained the greatest contribution of hydrocarbons of terrestrial origin (up to 56% of total hydrocarbons).read more
Citations
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Journal ArticleDOI
Microalgal biomarkers: A review of recent research developments
John K. Volkman,Stephanie M. Barrett,Susan I. Blackburn,Maged P. Mansour,Elisabeth L. Sikes,François Gelin +5 more
TL;DR: A review of some recent advances in knowledge of the wide variety of lipid types that have been isolated from microalgae with an emphasis on those likely to be useful biomarkers for identifying sources of organic matter in sediments.
Book
Chemical Biomarkers in Aquatic Ecosystems
TL;DR: This paper presents a meta-analyses of metabolic Synthesis and biomarker applications to Ecology and Paleoecology using Atomic Weights of Elements and Conversion Factors, as well as some of the methods used in this work to derive these units.
Journal ArticleDOI
Compositions and transport of lipid biomarkers through the water column and surficial sediments of the equatorial Pacific Ocean
TL;DR: In this article, a systematic investigation of fluxes and compositions of lipids through the water column and into sediments was conducted along the U.S. JGOFS EgPac transect from l2°N to l5°S at 140°W.
Journal ArticleDOI
Archaea mediate anaerobic oxidation of methane in deep euxinic waters of the Black Sea
TL;DR: In this paper, the authors evaluate anaerobic oxidation of methane (AOM) in the Black Sea water column by determining distributions of archaea-specific glyceryl dialkyl glyceryls tetraethers and 13C isotopic compositions of their constituent biphytanes in suspended particulate matter (SPM), sinking particulate material collected in sediment traps, and surface sediments.
Journal ArticleDOI
Ether lipids of planktonic archaea in the marine water column
Marcel J.L. Hoefs,Stefan Schouten,J.W. de Leeuw,L. L. King,Stuart G. Wakeham,Jaap S. Sinninghe Damsté +5 more
TL;DR: Acyclic and cyclic biphytanes derived from the membrane ether lipids of archaea were found in water column particulate and sedimentary organic matter from several oxic and anoxic marine environments as discussed by the authors.
References
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Book
Petroleum Formation and Occurrence
TL;DR: The early transformation of organic matter from organisms to geochemical fossils and Kerogen has been studied in the literature as mentioned in this paper, with a focus on the migration and accumulation of oil and gas.
Journal ArticleDOI
Leaf Epicuticular Waxes
G. Eglinton,Richard J. Hamilton +1 more
TL;DR: Enzymic studies, radiolabeling, and electron microscopy will be needed to reveal the mode of biogenesis of the wax constituents and their site of formation and subsequent pathway through the cuticle to the leaf surface.
Journal ArticleDOI
Distribution of n-paraffins as a clue to recognition of source beds
TL;DR: A preference for n-paraffins with odd numbers of carbon atoms is widespread in Recent sediments as discussed by the authors. But the results of the analysis showed no preference in the heavy n -paraifins for molecules of either odd- or even-carbon number.
Journal ArticleDOI
Distribution of Hopanoid Triterpenes in Prokaryotes
TL;DR: Pentacyclic triterpenoids of the hopane family were found in about half of some 100 strains of prokaryotes belonging to diverse taxonomic groups, such a wide distribution indicating the biological significance of these compounds.