Strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at ODP Sites 130-807 and 125-786, supplement to: Martin, Ellen E; Haley, Brian A (2000): Fossil fish teeth as proxies for seawater Sr and Nd isotopes. Geochimica et Cosmochimica Acta, 64(5), 835-847
We analyzed Nd and Sr isotopic compositions of Neogene fossil fish teeth from two sites in the Pacific in order to determine the effect of cleaning protocols and burial diagenesis on the preservation of seawater isotopic values. Sr is incorporated into the teeth at the time of growth; thus Sr isotop...
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ftdatacite:10.1594/pangaea.708257 2023-05-15T13:40:55+02:00 Strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at ODP Sites 130-807 and 125-786, supplement to: Martin, Ellen E; Haley, Brian A (2000): Fossil fish teeth as proxies for seawater Sr and Nd isotopes. Geochimica et Cosmochimica Acta, 64(5), 835-847 Martin, Ellen E Haley, Brian A 2000 application/zip https://dx.doi.org/10.1594/pangaea.708257 https://doi.pangaea.de/10.1594/PANGAEA.708257 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/s0016-7037(99)00376-2 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Composite Core Drilling/drill rig Leg125 Leg130 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 2000 ftdatacite https://doi.org/10.1594/pangaea.708257 https://doi.org/10.1016/s0016-7037(99)00376-2 2022-02-08T16:24:46Z We analyzed Nd and Sr isotopic compositions of Neogene fossil fish teeth from two sites in the Pacific in order to determine the effect of cleaning protocols and burial diagenesis on the preservation of seawater isotopic values. Sr is incorporated into the teeth at the time of growth; thus Sr isotopes are potentially valuable for chemostratigraphy. Nd isotopes are potential conservative tracers of paleocirculation; however, Nd is incorporated post-mortem, and may record diagenetic pore waters rather than seawater. We evaluated samples from two sites (Site 807A, Ontong Java Plateau and Site 786A, Izu-Bonin Arc) that were exposed to similar bottom waters, but have distinct lithologies and pore water chemistries.The Sr isotopic values of the fish teeth appear to accurately reflect contemporaneous seawater at both sites. The excellent correlation between the Nd isotopic values of teeth from the two sites suggests that the Nd is incorporated while the teeth are in chemical equilibrium with seawater, and that the signal is preserved over geologic timescales and subsequent burial. These data also corroborate paleoseawater Nd isotopic compositions derived from Pacific ferromanganese crusts that were recovered from similar water depths (Ling et al., 1997; doi:10.1016/S0012-821X(96)00224-5). This corroboration strongly suggests that both materials preserve seawater Nd isotope values. Variations in Pacific deepwater e-Nd values are consistent with predictions for the shoaling of the Isthmus of Panama and the subsequent initiation of nonradiogenic North Atlantic Deep Water that entered the Pacific via the Antarctic Circumpolar Current. Article in Journal/Newspaper Antarc* Antarctic North Atlantic Deep Water North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Pacific The Antarctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Composite Core Drilling/drill rig Leg125 Leg130 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Composite Core Drilling/drill rig Leg125 Leg130 Joides Resolution Ocean Drilling Program ODP Martin, Ellen E Haley, Brian A Strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at ODP Sites 130-807 and 125-786, supplement to: Martin, Ellen E; Haley, Brian A (2000): Fossil fish teeth as proxies for seawater Sr and Nd isotopes. Geochimica et Cosmochimica Acta, 64(5), 835-847 |
topic_facet |
Composite Core Drilling/drill rig Leg125 Leg130 Joides Resolution Ocean Drilling Program ODP |
description |
We analyzed Nd and Sr isotopic compositions of Neogene fossil fish teeth from two sites in the Pacific in order to determine the effect of cleaning protocols and burial diagenesis on the preservation of seawater isotopic values. Sr is incorporated into the teeth at the time of growth; thus Sr isotopes are potentially valuable for chemostratigraphy. Nd isotopes are potential conservative tracers of paleocirculation; however, Nd is incorporated post-mortem, and may record diagenetic pore waters rather than seawater. We evaluated samples from two sites (Site 807A, Ontong Java Plateau and Site 786A, Izu-Bonin Arc) that were exposed to similar bottom waters, but have distinct lithologies and pore water chemistries.The Sr isotopic values of the fish teeth appear to accurately reflect contemporaneous seawater at both sites. The excellent correlation between the Nd isotopic values of teeth from the two sites suggests that the Nd is incorporated while the teeth are in chemical equilibrium with seawater, and that the signal is preserved over geologic timescales and subsequent burial. These data also corroborate paleoseawater Nd isotopic compositions derived from Pacific ferromanganese crusts that were recovered from similar water depths (Ling et al., 1997; doi:10.1016/S0012-821X(96)00224-5). This corroboration strongly suggests that both materials preserve seawater Nd isotope values. Variations in Pacific deepwater e-Nd values are consistent with predictions for the shoaling of the Isthmus of Panama and the subsequent initiation of nonradiogenic North Atlantic Deep Water that entered the Pacific via the Antarctic Circumpolar Current. |
format |
Article in Journal/Newspaper |
author |
Martin, Ellen E Haley, Brian A |
author_facet |
Martin, Ellen E Haley, Brian A |
author_sort |
Martin, Ellen E |
title |
Strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at ODP Sites 130-807 and 125-786, supplement to: Martin, Ellen E; Haley, Brian A (2000): Fossil fish teeth as proxies for seawater Sr and Nd isotopes. Geochimica et Cosmochimica Acta, 64(5), 835-847 |
title_short |
Strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at ODP Sites 130-807 and 125-786, supplement to: Martin, Ellen E; Haley, Brian A (2000): Fossil fish teeth as proxies for seawater Sr and Nd isotopes. Geochimica et Cosmochimica Acta, 64(5), 835-847 |
title_full |
Strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at ODP Sites 130-807 and 125-786, supplement to: Martin, Ellen E; Haley, Brian A (2000): Fossil fish teeth as proxies for seawater Sr and Nd isotopes. Geochimica et Cosmochimica Acta, 64(5), 835-847 |
title_fullStr |
Strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at ODP Sites 130-807 and 125-786, supplement to: Martin, Ellen E; Haley, Brian A (2000): Fossil fish teeth as proxies for seawater Sr and Nd isotopes. Geochimica et Cosmochimica Acta, 64(5), 835-847 |
title_full_unstemmed |
Strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at ODP Sites 130-807 and 125-786, supplement to: Martin, Ellen E; Haley, Brian A (2000): Fossil fish teeth as proxies for seawater Sr and Nd isotopes. Geochimica et Cosmochimica Acta, 64(5), 835-847 |
title_sort |
strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at odp sites 130-807 and 125-786, supplement to: martin, ellen e; haley, brian a (2000): fossil fish teeth as proxies for seawater sr and nd isotopes. geochimica et cosmochimica acta, 64(5), 835-847 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2000 |
url |
https://dx.doi.org/10.1594/pangaea.708257 https://doi.pangaea.de/10.1594/PANGAEA.708257 |
geographic |
Antarctic Pacific The Antarctic |
geographic_facet |
Antarctic Pacific The Antarctic |
genre |
Antarc* Antarctic North Atlantic Deep Water North Atlantic |
genre_facet |
Antarc* Antarctic North Atlantic Deep Water North Atlantic |
op_relation |
https://dx.doi.org/10.1016/s0016-7037(99)00376-2 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.708257 https://doi.org/10.1016/s0016-7037(99)00376-2 |
_version_ |
1766143163742814208 |