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Martin, Ellen E; Haley, Brian A (2000): Strontium and neodymium concentrations and isotope compositions in fossil fish teeth and pore waters at ODP Sites 130-807 and 125-786 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.708257, Supplement to: Martin, EE; Haley, BA (2000): Fossil fish teeth as proxies for seawater Sr and Nd isotopes. Geochimica et Cosmochimica Acta, 64(5), 835-847, https://doi.org/10.1016/S0016-7037(99)00376-2

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Abstract:
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.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 17.740927 * Median Longitude: 148.925525 * South-bound Latitude: 3.606667 * West-bound Longitude: 141.226000 * North-bound Latitude: 31.875000 * East-bound Longitude: 156.625000
Date/Time Start: 1989-04-04T00:00:00 * Date/Time End: 1990-03-02T21:00:00
Event(s):
125-786 * Latitude: 31.874600 * Longitude: 141.226250 * Date/Time Start: 1989-04-04T00:00:00 * Date/Time End: 1989-04-16T00:00:00 * Elevation: -3076.0 m * Penetration: 995.1 m * Recovery: 275 m * Location: North Pacific Ocean * Campaign: Leg125 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 91 cores; 832.6 m cored; 0 m drilled; 33% recovery
125-786A * Latitude: 31.875000 * Longitude: 141.226000 * Date/Time Start: 1989-04-04T12:00:00 * Date/Time End: 1989-04-04T12:00:00 * Elevation: -3070.0 m * Penetration: 166.5 m * Recovery: 84.95 m * Location: North Pacific Ocean * Campaign: Leg125 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 166.5 m cored; 0 m drilled; 51 % recovery
130-807 * Latitude: 3.606667 * Longitude: 156.625000 * Date/Time Start: 1990-02-26T00:00:00 * Date/Time End: 1990-03-02T00:00:00 * Elevation: -2805.2 m * Penetration: 2629.9 m * Recovery: 1249.8 m * Location: North Pacific Ocean * Campaign: Leg130 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 209 cores; 1849.9 m cored; 0 m drilled; 67.6% recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
5 datasets

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Datasets listed in this publication series

  1. Martin, EE; Haley, BA (2000): (Table 1) Strontium isotope composition in pore waters at ODP Sites 130-807 and 125-786. https://doi.org/10.1594/PANGAEA.708250
  2. Martin, EE; Haley, BA (2000): (Table 2) Neodymium contents and isotope compositions in fossil fish teeth from ODP Hole 125-786A. https://doi.org/10.1594/PANGAEA.708252
  3. Martin, EE; Haley, BA (2000): (Table 2) Neodymium contents and isotope compositions in fossil fish teeth from ODP Hole 130-807A. https://doi.org/10.1594/PANGAEA.708254
  4. Martin, EE; Haley, BA (2000): (Table 3) Strontium contents and isotope compositions in fossil fish teeth from ODP Hole 125-786A. https://doi.org/10.1594/PANGAEA.708255
  5. Martin, EE; Haley, BA (2000): (Table 3) Strontium contents and isotope compositions in fossil fish teeth from ODP Hole 130-807A. https://doi.org/10.1594/PANGAEA.708256