Journal ArticleDOI
A review of sterol markers for marine and terrigenous organic matter
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TLDR
It is indicated that inferences drawn from sterol distributions regarding sources of organic matter must be made with caution and should be supported using other lipid data, and that in ancient sediments and crude oils a high proportion of C 29 steranes need not indicate that most of the organic matter was derived from vascular plants.About:
This article is published in Organic Geochemistry.The article was published on 1986-01-01. It has received 1713 citations till now. The article focuses on the topics: Sterane & Organic matter.read more
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Organic geochemical proxies of paleoceanographic, paleolimnologic, and paleoclimatic processes
TL;DR: In this article, the organic matter content of sediments is inferred from bulk properties such as elemental compositions, carbon and nitrogen stable isotope ratios, Rock-Eval pyrolysis data, and organic petrography.
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Stable isotopes in ecology and environmental science
Robert H. Michener,Kate Lajtha +1 more
TL;DR: In this paper, the authors present an overview of the use of stable isotopes in watershed hydrology and their application in agricultural and urban watersheds, as well as in marine ecosystems.
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Lacustrine organic geochemistry—an overview of indicators of organic matter sources and diagenesis in lake sediments
TL;DR: The factors affecting the amounts and types of organic matter in lacustrine sediments are summarized in a review, and synthesis, of published studies as discussed by the authors, and the interplay of the factors influencing the organic matter content of lake sediments is illustrated by overviews of sedimentary records of four lake systems--Lake Biwa (Japan), Lake Greifen (Switzerland), Lake Washington (Pacific Northwest), and the Great Lakes (American Midwest).
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Applications of organic geochemistry to paleolimnological reconstructions: a summary of examples from the Laurentian Great Lakes
TL;DR: 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 humans on local ecosystems as discussed by the authors, and serve as proxies of organic matter delivery and accumulation.
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School Climate: Research, Policy, Practice, and Teacher Education
TL;DR: A sustainable, positive school climate fosters youth development and learning necessary for a productive, contributive, and satisfying life in a democratic society as mentioned in this paper, including norms, goals, values, interpersonal relationships, teaching and learning practices, and organizational structures.
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Organic geochemical indicators of palaeoenvironmental conditions of sedimentation
TL;DR: In this article, the role of oxic and anoxic sedimentary environments is evaluated using a combination of geochemical parameters such as lipid composition, sulphur and organic pigments.
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Sterols as ecological indicators
Wen-Yen Huang,W. G. Meinschein +1 more
TL;DR: Plots of the C-27, C-28 and C-29 sterol contents of marine plankton, higher plants, soils, and marine sediments form discrete areas in a triangular diagram as mentioned in this paper.
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Microbial lipids of an intertidal sediment—I. Fatty acids and hydrocarbons
TL;DR: In this article, a detailed study was made of the solvent extractable monocarboxylic, dicarboxylated and hydroxylated fatty acids and n-alkanes in a surface intertidal sediment, and the distributions compared to microorganisms cultured from the sediment.
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Biomass production, total protein, chlorophylls, lipids and fatty acids of freshwater green and blue-green algae under different nitrogen regimes☆
TL;DR: The green but not the blue-green algae can be manipulated in mass cultures to yield a biomass with desired fatty acid and lipid compositions, which may indicate a hitherto unrecognized distinction between prokaryotic and eukaryotic organisms.
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Check-list of British marine algae-third revision
Mary Parke,Peter S. Dixon +1 more
TL;DR: Parke et al. as mentioned in this paper published the Revised Check-list of British Marine Algae (Parke & Dixon, 1964) with a number of changes, both taxonomic and systematic, which have been sufficiently numerous to warrant the present list incorporating additions, corrections and emendations.