Radiocarbon dating of individual fatty acids as a tool for refining Antarctic margin sediment chronologies.
We have measured the radiocarbon contents of individual, solvent-extractable, short-chain (C (sub 14) , C (sub 16) , and C (sub 18) ) fatty acids isolated from Ross Sea surface sediments. The corresponding (super 14) C ages are equivalent to that of the post-bomb dissolved inorganic carbon (DIC) res...
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Radiocarbon
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ftunivarizonaojs:oai:journals.uair.arizona.edu:article/4155 2023-05-15T14:02:46+02:00 Radiocarbon dating of individual fatty acids as a tool for refining Antarctic margin sediment chronologies. Ohkouchi, Naohiko Eglinton, Timothy I Hayes, John M 2003-01-01 application/pdf https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/4155 eng eng Radiocarbon https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/4155/3580 https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/4155 Radiocarbon; Vol 45, No 1 (2003); 17-24 0033-8222 Ross Sea;Southern Ocean;fatty acids;marine sedimentation;Antarctica;inorganic materials;sedimentation;sedimentation rates;marine sediments;organic acids;Holocene;upper Holocene;organic compounds;sediments;Cenozoic;Quaternary;C 14;carbon;isotopes;radioactive isotopes;absolute age info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2003 ftunivarizonaojs 2020-11-14T17:53:01Z We have measured the radiocarbon contents of individual, solvent-extractable, short-chain (C (sub 14) , C (sub 16) , and C (sub 18) ) fatty acids isolated from Ross Sea surface sediments. The corresponding (super 14) C ages are equivalent to that of the post-bomb dissolved inorganic carbon (DIC) reservoir. Moreover, molecular (super 14) C variations in surficial (upper 15 cm) sediments indicate that these compounds may prove useful for reconstructing chronologies of Antarctic margin sediments containing uncertain (and potentially variable) quantities of relict organic carbon. A preliminary molecular (super 14) C chronology suggests that the accumulation rate of relict organic matter has not changed during the last 500 (super 14) C yr. The focus of this study is to determine the validity of compound-specific (super 14) C analysis as a technique for reconstructing chronologies of Antarctic margin sediments. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ross Sea Southern Ocean Journals at the University of Arizona Antarctic Ross Sea Southern Ocean |
institution |
Open Polar |
collection |
Journals at the University of Arizona |
op_collection_id |
ftunivarizonaojs |
language |
English |
topic |
Ross Sea;Southern Ocean;fatty acids;marine sedimentation;Antarctica;inorganic materials;sedimentation;sedimentation rates;marine sediments;organic acids;Holocene;upper Holocene;organic compounds;sediments;Cenozoic;Quaternary;C 14;carbon;isotopes;radioactive isotopes;absolute age |
spellingShingle |
Ross Sea;Southern Ocean;fatty acids;marine sedimentation;Antarctica;inorganic materials;sedimentation;sedimentation rates;marine sediments;organic acids;Holocene;upper Holocene;organic compounds;sediments;Cenozoic;Quaternary;C 14;carbon;isotopes;radioactive isotopes;absolute age Ohkouchi, Naohiko Eglinton, Timothy I Hayes, John M Radiocarbon dating of individual fatty acids as a tool for refining Antarctic margin sediment chronologies. |
topic_facet |
Ross Sea;Southern Ocean;fatty acids;marine sedimentation;Antarctica;inorganic materials;sedimentation;sedimentation rates;marine sediments;organic acids;Holocene;upper Holocene;organic compounds;sediments;Cenozoic;Quaternary;C 14;carbon;isotopes;radioactive isotopes;absolute age |
description |
We have measured the radiocarbon contents of individual, solvent-extractable, short-chain (C (sub 14) , C (sub 16) , and C (sub 18) ) fatty acids isolated from Ross Sea surface sediments. The corresponding (super 14) C ages are equivalent to that of the post-bomb dissolved inorganic carbon (DIC) reservoir. Moreover, molecular (super 14) C variations in surficial (upper 15 cm) sediments indicate that these compounds may prove useful for reconstructing chronologies of Antarctic margin sediments containing uncertain (and potentially variable) quantities of relict organic carbon. A preliminary molecular (super 14) C chronology suggests that the accumulation rate of relict organic matter has not changed during the last 500 (super 14) C yr. The focus of this study is to determine the validity of compound-specific (super 14) C analysis as a technique for reconstructing chronologies of Antarctic margin sediments. |
format |
Article in Journal/Newspaper |
author |
Ohkouchi, Naohiko Eglinton, Timothy I Hayes, John M |
author_facet |
Ohkouchi, Naohiko Eglinton, Timothy I Hayes, John M |
author_sort |
Ohkouchi, Naohiko |
title |
Radiocarbon dating of individual fatty acids as a tool for refining Antarctic margin sediment chronologies. |
title_short |
Radiocarbon dating of individual fatty acids as a tool for refining Antarctic margin sediment chronologies. |
title_full |
Radiocarbon dating of individual fatty acids as a tool for refining Antarctic margin sediment chronologies. |
title_fullStr |
Radiocarbon dating of individual fatty acids as a tool for refining Antarctic margin sediment chronologies. |
title_full_unstemmed |
Radiocarbon dating of individual fatty acids as a tool for refining Antarctic margin sediment chronologies. |
title_sort |
radiocarbon dating of individual fatty acids as a tool for refining antarctic margin sediment chronologies. |
publisher |
Radiocarbon |
publishDate |
2003 |
url |
https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/4155 |
geographic |
Antarctic Ross Sea Southern Ocean |
geographic_facet |
Antarctic Ross Sea Southern Ocean |
genre |
Antarc* Antarctic Antarctica Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea Southern Ocean |
op_source |
Radiocarbon; Vol 45, No 1 (2003); 17-24 0033-8222 |
op_relation |
https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/4155/3580 https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/4155 |
_version_ |
1766273178980581376 |