Reworked triterpenoid and steroid hydrocarbons in a Recent sediment

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doi: 10.1016/0016-7037(84)90090-5
Authors:Rowland, S. J.; Maxwell, J. R.
Author Affiliations:Primary:
Univ. Bristol, Sch. Chem., Bristol, United Kingdom
Volume Title:Geochimica et Cosmochimica Acta
Source:Geochimica et Cosmochimica Acta, 48(4), p.617-624. Publisher: Pergamon, Oxford, International. ISSN: 0016-7037
Publication Date:1984
Note:In English. 53 refs.; illus. incl. sketch map
Summary:The distributions of steranes, pentacyclic triterpanes and aromatic steroid hydrocarbons in core sections of a recent intertidal sediment (Bridgwater Bay, Severn Estuary, U.K.) have been examined by gas chromatography-mass spectrometry. Depending on sample depth, the distributions are explicable in terms of (i) a reworked origin for these compounds from a geological source, probably as a result of erosion of nearby organic-rich sediments of Lower Liassic age, or (ii) a dual origin from both (i) and a more mature source, probably an anthropogenic input of petroleum origin. These results indicate that not all of these steroid and triterpenoid hydrocarbons in surface sediments necessarily result from fossil fuel pollution. They indicate also that attention should be paid to the possibility of contributions from reworked components when using the distributions of these compounds in geochemical studies of sediments that are low in extractable organic matter. [R.A.H.]
Subjects:Aliphatic hydrocarbons; Aromatic hydrocarbons; Gas chromatograms; Geochemistry; Hydrocarbons; Organic compounds; Sediments; Spectra; England; Europe; Great Britain; Severn Estuary; United Kingdom; Western Europe; Organic materials; Sterane; Triterpane
Abstract Numbers:85M/0648
Record ID:1985006125
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute.
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