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Scher, Howie D; Delaney, Margaret Lois (2010): Nd isotope composition of fossil fish teeth of ODP Hole 119-738B [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.780523, Supplement to: Scher, HD; Delaney, ML (2010): Breaking the glass ceiling for high resolution Nd isotope records in early Cenozoic paleoceanography. Chemical Geology, 269(3-4), 329-338, https://doi.org/10.1016/j.chemgeo.2009.10.007

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Abstract:
We report an optimized method for extracting neodymium (Nd) from fossil fish teeth with a single-stage column (125 µl stem volume; LN Resin, Eichrom Industries, Darien Illinois) for isotopic analysis by multi-collector inductively coupled mass spectrometry (MC-ICMPS). Three reference materials (basalt: BCR-2, BHVO-2; phosphate: fossil bone composite) and splits of fossil fish teeth samples previously processed with existing two-stage column methods were processed using the single-stage column method. 143Nd/144Nd values of reference materials agree within error with published values, and the values for fish teeth correspond with sample splits processed with two-stage columns. Precision to ± ~0.23 epsilon-Nd was achieved for 30 ng Nd samples of reference materials, and Nd isotope measurements of fossil fish tooth sample replicates as small as 7 ng Nd were reproducible within long term instrumental uncertainty. We demonstrate the utility of the new method with the first high resolution Nd isotope record spanning the ~40.0 Ma middle Eocene Climatic Optimum, which shows an excursion of 0.65 epsilon-Nd during the peak warming at the study site (Ocean Drilling Program Leg 119, Site 738; 30 kyr sample spacing from 40.3 to 39.6 Ma). LN Resin is already used in standard methods for separating Nd, and Nd isotopes are routinely measured by MC-ICPMS with high efficiency inlet systems. Our innovation is a single, small volume LN Resin column for Nd separation. The streamlined approach results in a 10X increase in sample throughput.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -62.709000 * Longitude: 82.787800
Date/Time Start: 1988-01-10T16:30:00 * Date/Time End: 1988-01-11T18:45:00
Event(s):
119-738B * Latitude: -62.709000 * Longitude: 82.787800 * Date/Time Start: 1988-01-10T16:30:00 * Date/Time End: 1988-01-11T18:45:00 * Elevation: -2263.0 m * Penetration: 214.3 m * Recovery: 170.85 m * Location: Indian Ocean * Campaign: Leg119 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores; 214.3 m cored; 0 m drilled; 79.7 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Scher, HD; Delaney, ML (2010): (Table S4) 147Sm/144Nd values of fossil fish teeth samples of OPD Hole 119-738B. https://doi.org/10.1594/PANGAEA.780520
  2. Scher, HD; Delaney, ML (2010): (Table 4a) Nd isotope ratios of fossil fish teeth samples of ODP Hole 119-738B. https://doi.org/10.1594/PANGAEA.780504
  3. Scher, HD; Delaney, ML (2010): (Table 4b) Nd isotope ratios of fossil fish teeth samples of OPD Hole 119-738B, measured by different techniques. https://doi.org/10.1594/PANGAEA.780515
  4. Scher, HD; Delaney, ML (2010): (Table S5) Nd isotope ratios of fossil fish teeth MECO samples of OPD Hole 119-738B. https://doi.org/10.1594/PANGAEA.780522