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 (δ18Odiatom) 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 pr...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2014
|
Subjects: | |
Online Access: | https://doi.org/10.5194/cp-10-1837-2014 http://www.clim-past.net/10/1837/2014/cp-10-1837-2014.pdf https://doaj.org/article/896f60bbbea3441aa8645683b169ba2d |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:896f60bbbea3441aa8645683b169ba2d |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:896f60bbbea3441aa8645683b169ba2d 2023-05-15T15:43:20+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 2014-10-01 https://doi.org/10.5194/cp-10-1837-2014 http://www.clim-past.net/10/1837/2014/cp-10-1837-2014.pdf https://doaj.org/article/896f60bbbea3441aa8645683b169ba2d en eng Copernicus Publications 1814-9324 1814-9332 doi:10.5194/cp-10-1837-2014 http://www.clim-past.net/10/1837/2014/cp-10-1837-2014.pdf https://doaj.org/article/896f60bbbea3441aa8645683b169ba2d undefined Climate of the Past, Vol 10, Iss 5, Pp 1837-1842 (2014) anthro-bio envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2014 fttriple https://doi.org/10.5194/cp-10-1837-2014 2023-01-22T17:50:37Z Oxygen isotope analyses of different size fractions of Pliocene diatoms (δ18Odiatom) 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 δ18O values several per mille (‰) lower than δ18Odiatom with a calculated mean offset of 3.9‰ ± 1.5. This difference is significantly greater than modern-day variations in water δ18O through the regional water column. Despite the potential for oxygen isotope disequilibrium within δ18Osponge, there appears to be some similarity between δ18Osponge and a global stacked benthic δ18Oforam record. This highlights the potential for δ18Osponge in palaeoenvironmental research at sites where carbonates are not readily preserved. Article in Journal/Newspaper Bering Sea Unknown Bering Sea Climate of the Past 10 5 1837 1842 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
anthro-bio envir |
spellingShingle |
anthro-bio envir 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 |
anthro-bio envir |
description |
Oxygen isotope analyses of different size fractions of Pliocene diatoms (δ18Odiatom) 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 δ18O values several per mille (‰) lower than δ18Odiatom with a calculated mean offset of 3.9‰ ± 1.5. This difference is significantly greater than modern-day variations in water δ18O through the regional water column. Despite the potential for oxygen isotope disequilibrium within δ18Osponge, there appears to be some similarity between δ18Osponge and a global stacked benthic δ18Oforam record. This highlights the potential for δ18Osponge 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 http://www.clim-past.net/10/1837/2014/cp-10-1837-2014.pdf 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 |
1814-9324 1814-9332 doi:10.5194/cp-10-1837-2014 http://www.clim-past.net/10/1837/2014/cp-10-1837-2014.pdf https://doaj.org/article/896f60bbbea3441aa8645683b169ba2d |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-10-1837-2014 |
container_title |
Climate of the Past |
container_volume |
10 |
container_issue |
5 |
container_start_page |
1837 |
op_container_end_page |
1842 |
_version_ |
1766377428077248512 |