Reworked triterpenoid and steroid hydrocarbons in a recent sediment

Details Reworked triterpenoid and steroid hydrocarbons in a recent sediment Reworked triterpenoid and steroid hydrocarbons in a recent sediment

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984gecoa..48..617r&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 48, Issue 4, pp.617-624

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Scientific paper

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 1. (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 2. (ii) a dual origin from both (i) and a more mature source, probably an anthropogenic input of petroleum origin. These results show 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.

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