Nd and Sr isotope compositions, REE concentrations and Al/Ca ratios of different phases of surface sediments in the South Pacific ...

The radiogenic isotope composition of neodymium (Nd) and strontium (Sr) are useful tools to investigate present and past oceanic circulation or input of terrigenous material. We present Nd and Sr isotope compositions extracted from different sedimentary phases, including early diagenetic Fe-Mn coati...

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Main Authors: Molina-Kescher, Mario, Frank, Martin, Hathorne, Ed C
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2014
Subjects:
Online Access:https://dx.doi.org/10.1594/pangaea.835638
https://doi.pangaea.de/10.1594/PANGAEA.835638
id ftdatacite:10.1594/pangaea.835638
record_format openpolar
spelling ftdatacite:10.1594/pangaea.835638 2024-09-15T18:31:02+00:00 Nd and Sr isotope compositions, REE concentrations and Al/Ca ratios of different phases of surface sediments in the South Pacific ... Molina-Kescher, Mario Frank, Martin Hathorne, Ed C 2014 application/zip https://dx.doi.org/10.1594/pangaea.835638 https://doi.pangaea.de/10.1594/PANGAEA.835638 en eng PANGAEA https://dx.doi.org/10.1002/2014gc005443 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 article Collection Supplementary Publication Series of Datasets 2014 ftdatacite https://doi.org/10.1594/pangaea.83563810.1002/2014gc005443 2024-08-01T11:01:17Z The radiogenic isotope composition of neodymium (Nd) and strontium (Sr) are useful tools to investigate present and past oceanic circulation or input of terrigenous material. We present Nd and Sr isotope compositions extracted from different sedimentary phases, including early diagenetic Fe-Mn coatings, "unclean" foraminiferal shells, fossil fish teeth, and detritus of marine surface sediments (core-tops) covering the entire midlatitude South Pacific. Comparison of detrital Nd isotope compositions to deep water values from the same locations suggests that "boundary exchange" has little influence on the Nd isotope composition of western South Pacific seawater. Concentrations of Rare Earth Elements (REE) and Al/Ca ratios of "unclean" planktonic foraminifera suggest that this phase is a reliable recorder of seawater Nd isotope composition. The signatures obtained from fish teeth and "nondecarbonated" leachates of bulk sediment Fe-Mn oxyhydroxide coatings also agree with "unclean" foraminifera. Direct comparison ... : Supplement to: Molina-Kescher, Mario; Frank, Martin; Hathorne, Ed C (2014): Nd and Sr isotope compositions of different phases of surface sediments in the South Pacific: Extraction of seawater signatures, boundary exchange, and detrital/dust provenance. Geochemistry, Geophysics, Geosystems ... Article in Journal/Newspaper Planktonic foraminifera DataCite
institution Open Polar
collection DataCite
op_collection_id ftdatacite
language English
description The radiogenic isotope composition of neodymium (Nd) and strontium (Sr) are useful tools to investigate present and past oceanic circulation or input of terrigenous material. We present Nd and Sr isotope compositions extracted from different sedimentary phases, including early diagenetic Fe-Mn coatings, "unclean" foraminiferal shells, fossil fish teeth, and detritus of marine surface sediments (core-tops) covering the entire midlatitude South Pacific. Comparison of detrital Nd isotope compositions to deep water values from the same locations suggests that "boundary exchange" has little influence on the Nd isotope composition of western South Pacific seawater. Concentrations of Rare Earth Elements (REE) and Al/Ca ratios of "unclean" planktonic foraminifera suggest that this phase is a reliable recorder of seawater Nd isotope composition. The signatures obtained from fish teeth and "nondecarbonated" leachates of bulk sediment Fe-Mn oxyhydroxide coatings also agree with "unclean" foraminifera. Direct comparison ... : Supplement to: Molina-Kescher, Mario; Frank, Martin; Hathorne, Ed C (2014): Nd and Sr isotope compositions of different phases of surface sediments in the South Pacific: Extraction of seawater signatures, boundary exchange, and detrital/dust provenance. Geochemistry, Geophysics, Geosystems ...
format Article in Journal/Newspaper
author Molina-Kescher, Mario
Frank, Martin
Hathorne, Ed C
spellingShingle Molina-Kescher, Mario
Frank, Martin
Hathorne, Ed C
Nd and Sr isotope compositions, REE concentrations and Al/Ca ratios of different phases of surface sediments in the South Pacific ...
author_facet Molina-Kescher, Mario
Frank, Martin
Hathorne, Ed C
author_sort Molina-Kescher, Mario
title Nd and Sr isotope compositions, REE concentrations and Al/Ca ratios of different phases of surface sediments in the South Pacific ...
title_short Nd and Sr isotope compositions, REE concentrations and Al/Ca ratios of different phases of surface sediments in the South Pacific ...
title_full Nd and Sr isotope compositions, REE concentrations and Al/Ca ratios of different phases of surface sediments in the South Pacific ...
title_fullStr Nd and Sr isotope compositions, REE concentrations and Al/Ca ratios of different phases of surface sediments in the South Pacific ...
title_full_unstemmed Nd and Sr isotope compositions, REE concentrations and Al/Ca ratios of different phases of surface sediments in the South Pacific ...
title_sort nd and sr isotope compositions, ree concentrations and al/ca ratios of different phases of surface sediments in the south pacific ...
publisher PANGAEA
publishDate 2014
url https://dx.doi.org/10.1594/pangaea.835638
https://doi.pangaea.de/10.1594/PANGAEA.835638
genre Planktonic foraminifera
genre_facet Planktonic foraminifera
op_relation https://dx.doi.org/10.1002/2014gc005443
op_rights Creative Commons Attribution 3.0 Unported
https://creativecommons.org/licenses/by/3.0/legalcode
cc-by-3.0
op_doi https://doi.org/10.1594/pangaea.83563810.1002/2014gc005443
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