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Lipid geochemistry in a sediment core from Conwy Estuary, North Wales

The sources and diagenesis of organic matter in sediment core from the Conwy Estuary, North Wales have been examined using lipid biomarker data (i.e. fatty alcohols and sterols). Twenty-five core sections were analysed from the surface to 50 cm depth. Sediments near the top of the core were enriched...

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Main Authors: Masni Mohd Ali,, Stephen M. Mudge,
Format: Article
Published: Universiti Kebangsaan Malaysia 2005
Online Access:http://journalarticle.ukm.my/3946/
http://www.ukm.my/jsm/english_journals/vol34num2_2005/vol34num2_05page23-33.html
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spelling my-ukm.journal.39462012-03-27T01:02:29Z http://journalarticle.ukm.my/3946/ Lipid geochemistry in a sediment core from Conwy Estuary, North Wales Masni Mohd Ali, Stephen M. Mudge, The sources and diagenesis of organic matter in sediment core from the Conwy Estuary, North Wales have been examined using lipid biomarker data (i.e. fatty alcohols and sterols). Twenty-five core sections were analysed from the surface to 50 cm depth. Sediments near the top of the core were enriched in marine organic matter with high concentration of short chain fatty alcohols and sterols, and decreased with depth. Terrestrial organic matter predominated the bottom sections of the core. These observations can be seen from the short/long ratio, Alcohol Source Index and Sterol Source Index, suggesting the degradation of the marine derived compounds. The sewage derived organic matter increased from bottom to top of the core showing the increasing input of sewage from the past until now. Multivariate statistical technique (PCA) was carried out to interpret the data. PCA confirmed above observations with PC1 and PC2 indicated biogeochemical sources. Universiti Kebangsaan Malaysia 2005-12 Article PeerReviewed Masni Mohd Ali, and Stephen M. Mudge, (2005) Lipid geochemistry in a sediment core from Conwy Estuary, North Wales. Sains Malaysiana, 34 (2). pp. 23-33. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol34num2_2005/vol34num2_05page23-33.html
institution Universiti Kebangsaan Malaysia
building Perpustakaan Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
description The sources and diagenesis of organic matter in sediment core from the Conwy Estuary, North Wales have been examined using lipid biomarker data (i.e. fatty alcohols and sterols). Twenty-five core sections were analysed from the surface to 50 cm depth. Sediments near the top of the core were enriched in marine organic matter with high concentration of short chain fatty alcohols and sterols, and decreased with depth. Terrestrial organic matter predominated the bottom sections of the core. These observations can be seen from the short/long ratio, Alcohol Source Index and Sterol Source Index, suggesting the degradation of the marine derived compounds. The sewage derived organic matter increased from bottom to top of the core showing the increasing input of sewage from the past until now. Multivariate statistical technique (PCA) was carried out to interpret the data. PCA confirmed above observations with PC1 and PC2 indicated biogeochemical sources.
format Article
author Masni Mohd Ali,
Stephen M. Mudge,
spellingShingle Masni Mohd Ali,
Stephen M. Mudge,
Lipid geochemistry in a sediment core from Conwy Estuary, North Wales
author_facet Masni Mohd Ali,
Stephen M. Mudge,
author_sort Masni Mohd Ali,
title Lipid geochemistry in a sediment core from Conwy Estuary, North Wales
title_short Lipid geochemistry in a sediment core from Conwy Estuary, North Wales
title_full Lipid geochemistry in a sediment core from Conwy Estuary, North Wales
title_fullStr Lipid geochemistry in a sediment core from Conwy Estuary, North Wales
title_full_unstemmed Lipid geochemistry in a sediment core from Conwy Estuary, North Wales
title_sort lipid geochemistry in a sediment core from conwy estuary, north wales
publisher Universiti Kebangsaan Malaysia
publishDate 2005
url http://journalarticle.ukm.my/3946/
http://www.ukm.my/jsm/english_journals/vol34num2_2005/vol34num2_05page23-33.html
_version_ 1643735908591075328
score 13.211869

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