Radiocarbon Geochemistry of Modern and Ancient Arctic Lake Systems, Baffin Island, Canada
Abstract The accuracy of Arctic lake chronologies has been assessed by measuring the 14 C activities of modern carbon sources and applying these isotopic mass balances to dating fossil lake materials. Small (<1 km 2 ) shallow (<25 m) Arctic lakes with watersheds <12 km 2 have soil and peat...
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Cambridge University Press (CUP)
1996
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crcambridgeupr:10.1006/qres.1996.0031 2024-06-23T07:49:36+00:00 Radiocarbon Geochemistry of Modern and Ancient Arctic Lake Systems, Baffin Island, Canada Abbott, Mark B. Stafford, Thomas W. 1996 http://dx.doi.org/10.1006/qres.1996.0031 http://api.elsevier.com/content/article/PII:S0033589496900319?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589496900319?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400024819 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 45, issue 3, page 300-311 ISSN 0033-5894 1096-0287 journal-article 1996 crcambridgeupr https://doi.org/10.1006/qres.1996.0031 2024-06-12T04:04:33Z Abstract The accuracy of Arctic lake chronologies has been assessed by measuring the 14 C activities of modern carbon sources and applying these isotopic mass balances to dating fossil lake materials. Small (<1 km 2 ) shallow (<25 m) Arctic lakes with watersheds <12 km 2 have soil and peat stratigraphic sections with 14 C activities ranging from 98 to 51% Modern. The 14 C activity of particulate organic carbon, dissolved organic carbon, and dissolved inorganic carbon from lake and stream waters ranges from 121 to 95% Modern. The sediment–water interface of the studied lakes shows consistent 14 C ages of ∼1000 14 C yr, although the 14 C activity of living aquatic vegetation is 115% Modern. Radiocarbon measurements of components of the lacustrine carbon pool imply that the ∼1000 14 C yr age of the sediment–water interface results from deposition of 14 C-depleted organic matter derived from the watershed. Article in Journal/Newspaper Arctic Baffin Island Baffin Cambridge University Press Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Baffin Island Canada Fossil Lake ENVELOPE(-128.902,-128.902,66.276,66.276) Quaternary Research 45 3 300 311 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract The accuracy of Arctic lake chronologies has been assessed by measuring the 14 C activities of modern carbon sources and applying these isotopic mass balances to dating fossil lake materials. Small (<1 km 2 ) shallow (<25 m) Arctic lakes with watersheds <12 km 2 have soil and peat stratigraphic sections with 14 C activities ranging from 98 to 51% Modern. The 14 C activity of particulate organic carbon, dissolved organic carbon, and dissolved inorganic carbon from lake and stream waters ranges from 121 to 95% Modern. The sediment–water interface of the studied lakes shows consistent 14 C ages of ∼1000 14 C yr, although the 14 C activity of living aquatic vegetation is 115% Modern. Radiocarbon measurements of components of the lacustrine carbon pool imply that the ∼1000 14 C yr age of the sediment–water interface results from deposition of 14 C-depleted organic matter derived from the watershed. |
format |
Article in Journal/Newspaper |
author |
Abbott, Mark B. Stafford, Thomas W. |
spellingShingle |
Abbott, Mark B. Stafford, Thomas W. Radiocarbon Geochemistry of Modern and Ancient Arctic Lake Systems, Baffin Island, Canada |
author_facet |
Abbott, Mark B. Stafford, Thomas W. |
author_sort |
Abbott, Mark B. |
title |
Radiocarbon Geochemistry of Modern and Ancient Arctic Lake Systems, Baffin Island, Canada |
title_short |
Radiocarbon Geochemistry of Modern and Ancient Arctic Lake Systems, Baffin Island, Canada |
title_full |
Radiocarbon Geochemistry of Modern and Ancient Arctic Lake Systems, Baffin Island, Canada |
title_fullStr |
Radiocarbon Geochemistry of Modern and Ancient Arctic Lake Systems, Baffin Island, Canada |
title_full_unstemmed |
Radiocarbon Geochemistry of Modern and Ancient Arctic Lake Systems, Baffin Island, Canada |
title_sort |
radiocarbon geochemistry of modern and ancient arctic lake systems, baffin island, canada |
publisher |
Cambridge University Press (CUP) |
publishDate |
1996 |
url |
http://dx.doi.org/10.1006/qres.1996.0031 http://api.elsevier.com/content/article/PII:S0033589496900319?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589496900319?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400024819 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) ENVELOPE(-128.902,-128.902,66.276,66.276) |
geographic |
Arctic Arctic Lake Baffin Island Canada Fossil Lake |
geographic_facet |
Arctic Arctic Lake Baffin Island Canada Fossil Lake |
genre |
Arctic Baffin Island Baffin |
genre_facet |
Arctic Baffin Island Baffin |
op_source |
Quaternary Research volume 45, issue 3, page 300-311 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1006/qres.1996.0031 |
container_title |
Quaternary Research |
container_volume |
45 |
container_issue |
3 |
container_start_page |
300 |
op_container_end_page |
311 |
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1802640083889684480 |