Pliocene diatom and sponge spicule oxygen isotope ratios from the Bering Sea: isotopic offsets and future directions
Oxygen isotope analyses of different size fractions of Pliocene diatoms (δ 18 O diatom ) from the Bering Sea show no evidence of an isotope offset and support the use of bulk diatom species samples for palaeoceanographic reconstructions. Additional samples containing concentrations of sponge spicule...
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ftdoajarticles:oai:doaj.org/article:896f60bbbea3441aa8645683b169ba2d 2023-05-15T15:43:24+02:00 Pliocene diatom and sponge spicule oxygen isotope ratios from the Bering Sea: isotopic offsets and future directions A. M. Snelling G. E. A. Swann J. Pike M. J. Leng 2014-10-01T00:00:00Z https://doi.org/10.5194/cp-10-1837-2014 https://doaj.org/article/896f60bbbea3441aa8645683b169ba2d EN eng Copernicus Publications http://www.clim-past.net/10/1837/2014/cp-10-1837-2014.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 1814-9324 1814-9332 doi:10.5194/cp-10-1837-2014 https://doaj.org/article/896f60bbbea3441aa8645683b169ba2d Climate of the Past, Vol 10, Iss 5, Pp 1837-1842 (2014) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2014 ftdoajarticles https://doi.org/10.5194/cp-10-1837-2014 2023-01-08T01:29:51Z Oxygen isotope analyses of different size fractions of Pliocene diatoms (δ 18 O diatom ) from the Bering Sea show no evidence of an isotope offset and support the use of bulk diatom species samples for palaeoceanographic reconstructions. Additional samples containing concentrations of sponge spicules produce δ 18 O values several per mille (‰) lower than δ 18 O diatom with a calculated mean offset of 3.9‰ ± 1.5. This difference is significantly greater than modern-day variations in water δ 18 O through the regional water column. Despite the potential for oxygen isotope disequilibrium within δ 18 O sponge , there appears to be some similarity between δ 18 O sponge and a global stacked benthic δ 18 O foram record. This highlights the potential for δ 18 O sponge in palaeoenvironmental research at sites where carbonates are not readily preserved. Article in Journal/Newspaper Bering Sea Directory of Open Access Journals: DOAJ Articles Bering Sea Climate of the Past 10 5 1837 1842 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 A. M. Snelling G. E. A. Swann J. Pike M. J. Leng Pliocene diatom and sponge spicule oxygen isotope ratios from the Bering Sea: isotopic offsets and future directions |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
Oxygen isotope analyses of different size fractions of Pliocene diatoms (δ 18 O diatom ) from the Bering Sea show no evidence of an isotope offset and support the use of bulk diatom species samples for palaeoceanographic reconstructions. Additional samples containing concentrations of sponge spicules produce δ 18 O values several per mille (‰) lower than δ 18 O diatom with a calculated mean offset of 3.9‰ ± 1.5. This difference is significantly greater than modern-day variations in water δ 18 O through the regional water column. Despite the potential for oxygen isotope disequilibrium within δ 18 O sponge , there appears to be some similarity between δ 18 O sponge and a global stacked benthic δ 18 O foram record. This highlights the potential for δ 18 O sponge in palaeoenvironmental research at sites where carbonates are not readily preserved. |
format |
Article in Journal/Newspaper |
author |
A. M. Snelling G. E. A. Swann J. Pike M. J. Leng |
author_facet |
A. M. Snelling G. E. A. Swann J. Pike M. J. Leng |
author_sort |
A. M. Snelling |
title |
Pliocene diatom and sponge spicule oxygen isotope ratios from the Bering Sea: isotopic offsets and future directions |
title_short |
Pliocene diatom and sponge spicule oxygen isotope ratios from the Bering Sea: isotopic offsets and future directions |
title_full |
Pliocene diatom and sponge spicule oxygen isotope ratios from the Bering Sea: isotopic offsets and future directions |
title_fullStr |
Pliocene diatom and sponge spicule oxygen isotope ratios from the Bering Sea: isotopic offsets and future directions |
title_full_unstemmed |
Pliocene diatom and sponge spicule oxygen isotope ratios from the Bering Sea: isotopic offsets and future directions |
title_sort |
pliocene diatom and sponge spicule oxygen isotope ratios from the bering sea: isotopic offsets and future directions |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/cp-10-1837-2014 https://doaj.org/article/896f60bbbea3441aa8645683b169ba2d |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
Climate of the Past, Vol 10, Iss 5, Pp 1837-1842 (2014) |
op_relation |
http://www.clim-past.net/10/1837/2014/cp-10-1837-2014.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 1814-9324 1814-9332 doi:10.5194/cp-10-1837-2014 https://doaj.org/article/896f60bbbea3441aa8645683b169ba2d |
op_doi |
https://doi.org/10.5194/cp-10-1837-2014 |
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Climate of the Past |
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10 |
container_issue |
5 |
container_start_page |
1837 |
op_container_end_page |
1842 |
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1766377485408141312 |