An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect
Sr/Ca in planktonic foraminifera recovered from the water column over 0–800 m along a meridional transect in the North Atlantic Ocean from 30° to 60°N were compared with data from core-top samples on the same transect and with in situ temperatures determined from water column CTD profiles. Species b...
Published in: | Geochemistry, Geophysics, Geosystems |
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ftopenunivgb:oai:oro.open.ac.uk:9294 2024-06-23T07:54:59+00:00 An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect Mortyn, P. G. Elderfield, H. Anand, P. Greaves, M. 2005-12 https://oro.open.ac.uk/9294/ http://www.open.ac.uk/people/p.anand/p5_1.shtml unknown Mortyn, P. G.; Elderfield, H.; Anand, P. <https://oro.open.ac.uk/view/person/pa2398.html> and Greaves, M. (2005). An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect. Geochemistry, Geophysics, Geosystems, 6(12) Journal Item PeerReviewed 2005 ftopenunivgb 2024-06-05T00:39:32Z Sr/Ca in planktonic foraminifera recovered from the water column over 0–800 m along a meridional transect in the North Atlantic Ocean from 30° to 60°N were compared with data from core-top samples on the same transect and with in situ temperatures determined from water column CTD profiles. Species belonging to the globorotaliid genus show significant variability in Sr/Ca from place to place, whereas non-globorotaliid species show no significant variability. This variability for the globorotaliid species in core-top samples has already been shown to covary with calcification temperature derived from δ18O, but it also covaries with bottom depth (symptomatic of a dissolution artifact). These alternatives are distinguishable from the water column data for which the globorotaliid species show a small temperature dependence of 0.025 mmol/mol/°C within the range 5–15°C. However, temperature dependence is not supported by glacial-interglacial differences in Sr/Ca for globorotaliid and non-globorotaliid species, and at least from this perspective, a [CO3 2−] influence seems more likely. Article in Journal/Newspaper North Atlantic Planktonic foraminifera The Open University: Open Research Online (ORO) Geochemistry, Geophysics, Geosystems 6 12 n/a n/a |
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Open Polar |
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The Open University: Open Research Online (ORO) |
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ftopenunivgb |
language |
unknown |
description |
Sr/Ca in planktonic foraminifera recovered from the water column over 0–800 m along a meridional transect in the North Atlantic Ocean from 30° to 60°N were compared with data from core-top samples on the same transect and with in situ temperatures determined from water column CTD profiles. Species belonging to the globorotaliid genus show significant variability in Sr/Ca from place to place, whereas non-globorotaliid species show no significant variability. This variability for the globorotaliid species in core-top samples has already been shown to covary with calcification temperature derived from δ18O, but it also covaries with bottom depth (symptomatic of a dissolution artifact). These alternatives are distinguishable from the water column data for which the globorotaliid species show a small temperature dependence of 0.025 mmol/mol/°C within the range 5–15°C. However, temperature dependence is not supported by glacial-interglacial differences in Sr/Ca for globorotaliid and non-globorotaliid species, and at least from this perspective, a [CO3 2−] influence seems more likely. |
format |
Article in Journal/Newspaper |
author |
Mortyn, P. G. Elderfield, H. Anand, P. Greaves, M. |
spellingShingle |
Mortyn, P. G. Elderfield, H. Anand, P. Greaves, M. An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect |
author_facet |
Mortyn, P. G. Elderfield, H. Anand, P. Greaves, M. |
author_sort |
Mortyn, P. G. |
title |
An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect |
title_short |
An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect |
title_full |
An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect |
title_fullStr |
An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect |
title_full_unstemmed |
An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect |
title_sort |
evaluation of controls on planktonic foraminiferal sr/ca: comparison of water column and core-top data from a north atlantic transect |
publishDate |
2005 |
url |
https://oro.open.ac.uk/9294/ http://www.open.ac.uk/people/p.anand/p5_1.shtml |
genre |
North Atlantic Planktonic foraminifera |
genre_facet |
North Atlantic Planktonic foraminifera |
op_relation |
Mortyn, P. G.; Elderfield, H.; Anand, P. <https://oro.open.ac.uk/view/person/pa2398.html> and Greaves, M. (2005). An evaluation of controls on planktonic foraminiferal Sr/Ca: Comparison of water column and core-top data from a North Atlantic transect. Geochemistry, Geophysics, Geosystems, 6(12) |
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Geochemistry, Geophysics, Geosystems |
container_volume |
6 |
container_issue |
12 |
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n/a |
op_container_end_page |
n/a |
_version_ |
1802647358862786560 |