Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula
The intratest variation in the chemical composition of Globorotalia scitula and G. inflata recovered from a sediment trap sample collected at 3000 m in the North Atlantic in early spring has been investigated using laser ablation inductively coupled plasma–mass spectrometry and electron microprobe....
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2009
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Online Access: | http://nora.nerc.ac.uk/id/eprint/171758/ http://www.agu.org/pubs/crossref/2009/2009PA001742.shtml https://doi.org/10.1029/2009PA001742 |
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ftnerc:oai:nora.nerc.ac.uk:171758 2023-05-15T17:33:06+02:00 Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula Hathorne, Ed C. James, Rachael H. Lampitt, Richard S. 2009 http://nora.nerc.ac.uk/id/eprint/171758/ http://www.agu.org/pubs/crossref/2009/2009PA001742.shtml https://doi.org/10.1029/2009PA001742 unknown Hathorne, Ed C.; James, Rachael H.; Lampitt, Richard S. 2009 Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula. Paleoceanography, 24. PA4204. https://doi.org/10.1029/2009PA001742 <https://doi.org/10.1029/2009PA001742> Publication - Article PeerReviewed 2009 ftnerc https://doi.org/10.1029/2009PA001742 2023-02-04T19:35:33Z The intratest variation in the chemical composition of Globorotalia scitula and G. inflata recovered from a sediment trap sample collected at 3000 m in the North Atlantic in early spring has been investigated using laser ablation inductively coupled plasma–mass spectrometry and electron microprobe. Mg/Ca, Li/Ca, B/Ca, Mn/Ca, and Ba/Ca vary by up to a factor of 10 through the test walls. Water column properties, including temperature and salinity, are well documented at the trap site, and the observed variations are too large to be explained by vertical migration of the foraminifera. However, changes in calcite precipitation rate, crystal structure, or the chemical composition of the internal calcification reservoir also cannot, by themselves, fully account for the pattern of intratest variability. Nevertheless, the average Mg/Ca for each chamber generally produces a Mg/Ca temperature that matches that measured in the water column. The exception is small, morphologically distinct G. inflata tests that have anomalously high Mg/Ca. Article in Journal/Newspaper North Atlantic Planktonic foraminifera Natural Environment Research Council: NERC Open Research Archive Paleoceanography 24 4 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
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unknown |
description |
The intratest variation in the chemical composition of Globorotalia scitula and G. inflata recovered from a sediment trap sample collected at 3000 m in the North Atlantic in early spring has been investigated using laser ablation inductively coupled plasma–mass spectrometry and electron microprobe. Mg/Ca, Li/Ca, B/Ca, Mn/Ca, and Ba/Ca vary by up to a factor of 10 through the test walls. Water column properties, including temperature and salinity, are well documented at the trap site, and the observed variations are too large to be explained by vertical migration of the foraminifera. However, changes in calcite precipitation rate, crystal structure, or the chemical composition of the internal calcification reservoir also cannot, by themselves, fully account for the pattern of intratest variability. Nevertheless, the average Mg/Ca for each chamber generally produces a Mg/Ca temperature that matches that measured in the water column. The exception is small, morphologically distinct G. inflata tests that have anomalously high Mg/Ca. |
format |
Article in Journal/Newspaper |
author |
Hathorne, Ed C. James, Rachael H. Lampitt, Richard S. |
spellingShingle |
Hathorne, Ed C. James, Rachael H. Lampitt, Richard S. Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula |
author_facet |
Hathorne, Ed C. James, Rachael H. Lampitt, Richard S. |
author_sort |
Hathorne, Ed C. |
title |
Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula |
title_short |
Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula |
title_full |
Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula |
title_fullStr |
Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula |
title_full_unstemmed |
Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula |
title_sort |
environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera g. inflata and g. scitula |
publishDate |
2009 |
url |
http://nora.nerc.ac.uk/id/eprint/171758/ http://www.agu.org/pubs/crossref/2009/2009PA001742.shtml https://doi.org/10.1029/2009PA001742 |
genre |
North Atlantic Planktonic foraminifera |
genre_facet |
North Atlantic Planktonic foraminifera |
op_relation |
Hathorne, Ed C.; James, Rachael H.; Lampitt, Richard S. 2009 Environmental versus biomineralization controls on the intratest variation in the trace element composition of the planktonic foraminifera G. inflata and G. scitula. Paleoceanography, 24. PA4204. https://doi.org/10.1029/2009PA001742 <https://doi.org/10.1029/2009PA001742> |
op_doi |
https://doi.org/10.1029/2009PA001742 |
container_title |
Paleoceanography |
container_volume |
24 |
container_issue |
4 |
_version_ |
1766131478777823232 |