Lipids as indicators of paleoclimatic changes, II: terrestrial biomarkers
Variations in the abundance of specific lipid biomarker compounds derived from terrestrial sources are shown to be closely related to past climatic changes. Despite biodegradation processes, which take place mostly at the water column and sediment water interface, these compounds are found well pres...
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Instituto Oceanográfico da Universidade de São Paulo
1999
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ftjscielo:oai:scielo:S1413-77391999000200001 2023-05-15T17:28:49+02:00 Lipids as indicators of paleoclimatic changes, II: terrestrial biomarkers Madureira,Luiz A. S. Piccinini,Alexandre 1999-01-01 text/html http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-77391999000200001 en eng Instituto Oceanográfico da Universidade de São Paulo Revista Brasileira de Oceanografia v.47 n.2 1999 Biomarkers Marine sediment Chromatography North Atlantic journal article 1999 ftjscielo 2015-10-26T22:32:40Z Variations in the abundance of specific lipid biomarker compounds derived from terrestrial sources are shown to be closely related to past climatic changes. Despite biodegradation processes, which take place mostly at the water column and sediment water interface, these compounds are found well preserved in oceanic sediments. Here, their relative distribution is employed as a tool to assess changes in terrestrial fluxes to the seabed accompanying climatic variations during glacial and interglacial intervals. These changes in biomarker distribution were estimated in two sediment cores taken ttom the eastern North Atlantic, covering the past 210,000 years. Comparisons with other paleoclimate proxies showed good agreement and suggest that some specific groups of biomarkers are important indicators of changes in terrestrial inputs to the sea. Article in Journal/Newspaper North Atlantic SciELO Brazil (Scientific Electronic Library Online) |
institution |
Open Polar |
collection |
SciELO Brazil (Scientific Electronic Library Online) |
op_collection_id |
ftjscielo |
language |
English |
topic |
Biomarkers Marine sediment Chromatography North Atlantic |
spellingShingle |
Biomarkers Marine sediment Chromatography North Atlantic Madureira,Luiz A. S. Piccinini,Alexandre Lipids as indicators of paleoclimatic changes, II: terrestrial biomarkers |
topic_facet |
Biomarkers Marine sediment Chromatography North Atlantic |
description |
Variations in the abundance of specific lipid biomarker compounds derived from terrestrial sources are shown to be closely related to past climatic changes. Despite biodegradation processes, which take place mostly at the water column and sediment water interface, these compounds are found well preserved in oceanic sediments. Here, their relative distribution is employed as a tool to assess changes in terrestrial fluxes to the seabed accompanying climatic variations during glacial and interglacial intervals. These changes in biomarker distribution were estimated in two sediment cores taken ttom the eastern North Atlantic, covering the past 210,000 years. Comparisons with other paleoclimate proxies showed good agreement and suggest that some specific groups of biomarkers are important indicators of changes in terrestrial inputs to the sea. |
format |
Article in Journal/Newspaper |
author |
Madureira,Luiz A. S. Piccinini,Alexandre |
author_facet |
Madureira,Luiz A. S. Piccinini,Alexandre |
author_sort |
Madureira,Luiz A. S. |
title |
Lipids as indicators of paleoclimatic changes, II: terrestrial biomarkers |
title_short |
Lipids as indicators of paleoclimatic changes, II: terrestrial biomarkers |
title_full |
Lipids as indicators of paleoclimatic changes, II: terrestrial biomarkers |
title_fullStr |
Lipids as indicators of paleoclimatic changes, II: terrestrial biomarkers |
title_full_unstemmed |
Lipids as indicators of paleoclimatic changes, II: terrestrial biomarkers |
title_sort |
lipids as indicators of paleoclimatic changes, ii: terrestrial biomarkers |
publisher |
Instituto Oceanográfico da Universidade de São Paulo |
publishDate |
1999 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-77391999000200001 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Revista Brasileira de Oceanografia v.47 n.2 1999 |
_version_ |
1766121907552256000 |