Geochemical significance of the lipid assemblages from the Laguna de las Madres (Huelva, Spain) peat deposit

Geochemical significance of the lipid assemblages from the Laguna de las Madres (Huelva, Spain) peat deposit

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7 páginas, 3 figuras, 1 tabla, 32 referencias.-- Comunicación presentada al citado congreso internacional, celebrado del 15-18 de julio 2002, en Alcalá de Henares, Madrid, España.-- cmartin@irnase.csic.es

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Main Authors: Clemente Salas, Luis, González-Vila, Francisco Javier, Polvillo, Oliva, González-Pérez, José Antonio, Yáñez, C., Almendros Martín, Gonzalo, Zancada Fernández, M. Cristina 
Format: capítulo de libro biblioteca
Language:English
Published: Universidad de Alcalá de Henares 2003
Subjects:Histosols, Lipids, Biomarkers, Holocene, Hydrocarbons, Fatty acids, Peat,
Online Access:http://hdl.handle.net/10261/66555
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spelling dig-irnas-es-10261-665552021-06-24T07:58:32Z Geochemical significance of the lipid assemblages from the Laguna de las Madres (Huelva, Spain) peat deposit Clemente Salas, Luis González-Vila, Francisco Javier Polvillo, Oliva González-Pérez, José Antonio Yáñez, C. Almendros Martín, Gonzalo Zancada Fernández, M. Cristina  Histosols Lipids Biomarkers Holocene Hydrocarbons Fatty acids Peat 7 páginas, 3 figuras, 1 tabla, 32 referencias.-- Comunicación presentada al citado congreso internacional, celebrado del 15-18 de julio 2002, en Alcalá de Henares, Madrid, España.-- cmartin@irnase.csic.es Vertical distributions of Iipid compounds along a sediment core from Laguna de las Madres (Huelva, Southern Spain) peat bog was analysed by gas chromatography-mass spectrometry (GC-MS). Two peat sections taken at different depths were studied in order to get information on the structure of the trophic system and the diagenetic processes of organic matter (OM) in this depositional environment. No qualitative f1uctuations downcore were observed in the patterns of the numerous alkyl series {n-alkanes, n-fatty acids. n-alkanols and n-alkan-2-ones} identified. Longchain alkylcompounds (>C24) typical of epicuticular waxes from herbaceous plants, predominate in these series. The presence of short-chain n-alkanes, bacterial fatty acids (Cl4' C15 , iso- and unsaturated acids), des-A-triterpenoid hydrocarbons, hopanoids and sorne steroid ketones indicate that intense microbial reworking of the OM took place for the whole range of the geochemical record analysed in this study. Diterpenoid and triterpenoid hydrocarbons with C-backbones assigned to higher plant sources were also present, as well as hopanoids of bacterial origino Steroid ketones and alkanols are dominated by C29 homologues similar, comparable to those derived from Sphagnum species and vascular plants. In general, the distributions of the different biomarker families were not distind enough to be considered as diagnostic tracers of any particular input, and therefore no c1ear chemotaxonomic descriptors of the biodiversity changes on the palaeoecosystem along the period of the peat deposit formation could be made. Peer reviewed 2013-02-13T10:51:43Z 2013-02-13T10:51:43Z 2003 capítulo de libro http://purl.org/coar/resource_type/c_3248 Extended Abstracts on Quaternary Climatic Changes and Environmental Crises in the Mediterranean Region: 49-55 (2003) 84-699-8798-4 D.L.: M-8169-2003 http://hdl.handle.net/10261/66555 en open Universidad de Alcalá de Henares Ministerio de Ciencia y Tecnología (España) International Association for Quaternary Research
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
language English
topic Histosols
Lipids
Biomarkers
Holocene
Hydrocarbons
Fatty acids
Peat
Histosols
Lipids
Biomarkers
Holocene
Hydrocarbons
Fatty acids
Peat
spellingShingle Histosols
Lipids
Biomarkers
Holocene
Hydrocarbons
Fatty acids
Peat
Histosols
Lipids
Biomarkers
Holocene
Hydrocarbons
Fatty acids
Peat
Clemente Salas, Luis
González-Vila, Francisco Javier
Polvillo, Oliva
González-Pérez, José Antonio
Yáñez, C.
Almendros Martín, Gonzalo
Zancada Fernández, M. Cristina 
Geochemical significance of the lipid assemblages from the Laguna de las Madres (Huelva, Spain) peat deposit
description 7 páginas, 3 figuras, 1 tabla, 32 referencias.-- Comunicación presentada al citado congreso internacional, celebrado del 15-18 de julio 2002, en Alcalá de Henares, Madrid, España.-- cmartin@irnase.csic.es
format capítulo de libro
topic_facet Histosols
Lipids
Biomarkers
Holocene
Hydrocarbons
Fatty acids
Peat
author Clemente Salas, Luis
González-Vila, Francisco Javier
Polvillo, Oliva
González-Pérez, José Antonio
Yáñez, C.
Almendros Martín, Gonzalo
Zancada Fernández, M. Cristina 
author_facet Clemente Salas, Luis
González-Vila, Francisco Javier
Polvillo, Oliva
González-Pérez, José Antonio
Yáñez, C.
Almendros Martín, Gonzalo
Zancada Fernández, M. Cristina 
author_sort Clemente Salas, Luis
title Geochemical significance of the lipid assemblages from the Laguna de las Madres (Huelva, Spain) peat deposit
title_short Geochemical significance of the lipid assemblages from the Laguna de las Madres (Huelva, Spain) peat deposit
title_full Geochemical significance of the lipid assemblages from the Laguna de las Madres (Huelva, Spain) peat deposit
title_fullStr Geochemical significance of the lipid assemblages from the Laguna de las Madres (Huelva, Spain) peat deposit
title_full_unstemmed Geochemical significance of the lipid assemblages from the Laguna de las Madres (Huelva, Spain) peat deposit
title_sort geochemical significance of the lipid assemblages from the laguna de las madres (huelva, spain) peat deposit
publisher Universidad de Alcalá de Henares
publishDate 2003
url http://hdl.handle.net/10261/66555
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