Zn/Sr record of the Last Interglacial Transition in South Atlantic Ocean sediments

We examined the zinc content of diatom frustules as an indicator of past changes in surface seawater Zn2+ concentration. Zn/Si data of samples from three cores located in the South Atlantic sector of the Southern Ocean spanning the last interglacial-glacial transition are presented. Changes in the Z...

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Bibliographic Details
Main Authors: Ellwood, Michael J, Hunter, Keith A
Format: Dataset
Language:English
Published: PANGAEA 2000
Subjects:
Southern Ocean
South Atlantic Ocean
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.848245
https://doi.org/10.1594/PANGAEA.848245
id ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848245
record_format openpolar
spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848245 2023-05-15T18:21:07+02:00 Zn/Sr record of the Last Interglacial Transition in South Atlantic Ocean sediments Ellwood, Michael J Hunter, Keith A MEDIAN LATITUDE: -50.057500 * MEDIAN LONGITUDE: 2.278600 * SOUTH-BOUND LATITUDE: -54.790000 * WEST-BOUND LONGITUDE: -4.930000 * NORTH-BOUND LATITUDE: -45.090000 * EAST-BOUND LONGITUDE: 9.150000 * DATE/TIME START: 1970-12-14T00:00:00 * DATE/TIME END: 1971-01-01T00:00:00 2000-07-17 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.848245 https://doi.org/10.1594/PANGAEA.848245 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.848245 https://doi.org/10.1594/PANGAEA.848245 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Ellwood, Michael J; Hunter, Keith A (2000): Variations in the Zn/Si record over the Last Interglacial Glacial Transition. Paleoceanography, 15(5), 506-514, https://doi.org/10.1029/1999PA000470 Dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.848245 https://doi.org/10.1029/1999PA000470 2023-01-20T07:33:29Z We examined the zinc content of diatom frustules as an indicator of past changes in surface seawater Zn2+ concentration. Zn/Si data of samples from three cores located in the South Atlantic sector of the Southern Ocean spanning the last interglacial-glacial transition are presented. Changes in the Zn/Si record are linked to changes in the surface water Zn2+ concentration. The source of variation in Zn2+ concentration appears to be via changes in deep water upwelling and circulation. We rule out changes in phytoplankton productivity and aeolian dust input as a source of variation in the Zn/Si record. Likewise, the Zn/Si data are not linked to shifts in the diatom species composition of the sediment or sediment preservation effects. The Zn/Si results presented do not support the zinc hypothesis. There is no link between the uptake of CO2 by phytoplankton, as inferred from the d13C record, and the Zn/Si record. Dataset South Atlantic Ocean Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Southern Ocean ENVELOPE(-4.930000,9.150000,-45.090000,-54.790000)
institution Open Polar
collection PANGAEA - Data Publisher for Earth & Environmental Science
op_collection_id ftpangaea
language English
description We examined the zinc content of diatom frustules as an indicator of past changes in surface seawater Zn2+ concentration. Zn/Si data of samples from three cores located in the South Atlantic sector of the Southern Ocean spanning the last interglacial-glacial transition are presented. Changes in the Zn/Si record are linked to changes in the surface water Zn2+ concentration. The source of variation in Zn2+ concentration appears to be via changes in deep water upwelling and circulation. We rule out changes in phytoplankton productivity and aeolian dust input as a source of variation in the Zn/Si record. Likewise, the Zn/Si data are not linked to shifts in the diatom species composition of the sediment or sediment preservation effects. The Zn/Si results presented do not support the zinc hypothesis. There is no link between the uptake of CO2 by phytoplankton, as inferred from the d13C record, and the Zn/Si record.
format Dataset
author Ellwood, Michael J
Hunter, Keith A
spellingShingle Ellwood, Michael J
Hunter, Keith A
Zn/Sr record of the Last Interglacial Transition in South Atlantic Ocean sediments
author_facet Ellwood, Michael J
Hunter, Keith A
author_sort Ellwood, Michael J
title Zn/Sr record of the Last Interglacial Transition in South Atlantic Ocean sediments
title_short Zn/Sr record of the Last Interglacial Transition in South Atlantic Ocean sediments
title_full Zn/Sr record of the Last Interglacial Transition in South Atlantic Ocean sediments
title_fullStr Zn/Sr record of the Last Interglacial Transition in South Atlantic Ocean sediments
title_full_unstemmed Zn/Sr record of the Last Interglacial Transition in South Atlantic Ocean sediments
title_sort zn/sr record of the last interglacial transition in south atlantic ocean sediments
publisher PANGAEA
publishDate 2000
url https://doi.pangaea.de/10.1594/PANGAEA.848245
https://doi.org/10.1594/PANGAEA.848245
op_coverage MEDIAN LATITUDE: -50.057500 * MEDIAN LONGITUDE: 2.278600 * SOUTH-BOUND LATITUDE: -54.790000 * WEST-BOUND LONGITUDE: -4.930000 * NORTH-BOUND LATITUDE: -45.090000 * EAST-BOUND LONGITUDE: 9.150000 * DATE/TIME START: 1970-12-14T00:00:00 * DATE/TIME END: 1971-01-01T00:00:00
long_lat ENVELOPE(-4.930000,9.150000,-45.090000,-54.790000)
geographic Southern Ocean
geographic_facet Southern Ocean
genre South Atlantic Ocean
Southern Ocean
genre_facet South Atlantic Ocean
Southern Ocean
op_source Supplement to: Ellwood, Michael J; Hunter, Keith A (2000): Variations in the Zn/Si record over the Last Interglacial Glacial Transition. Paleoceanography, 15(5), 506-514, https://doi.org/10.1029/1999PA000470
op_relation https://doi.pangaea.de/10.1594/PANGAEA.848245
https://doi.org/10.1594/PANGAEA.848245
op_rights CC-BY-3.0: Creative Commons Attribution 3.0 Unported
Access constraints: unrestricted
info:eu-repo/semantics/openAccess
op_rightsnorm CC-BY
op_doi https://doi.org/10.1594/PANGAEA.848245
https://doi.org/10.1029/1999PA000470
_version_ 1766200220511633408

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