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O'Nions, R K; Pankhurst, R J (2008): Strontium isotope and rare earth element geochemistry of basalts from DSDP Leg 37 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.708718, Supplement to: O'Nions, RK; Pankhurst, RJ (1976): Sr isotope and rare earth element geochemistry of DSDP Leg 37 basalts. Earth and Planetary Science Letters, 31(2), 255-261, https://doi.org/10.1016/0012-821X(76)90217-X

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Abstract:
87Sr/S6Sr ratios have been determined on eleven whole rock basalt samples from DSDP Leg 37. The 87Sr/S6Sr ratios range from 0.70305 +/- 4 to 0.70451 +/- 4 due to alteration and contamination with seawater Sr. Leaching with 5% HF has only a small effect on the 87Sr/86Sr of the samples. However, treatment with 6M HCl in acid digestion bombs at 130°C removes the contaminant more effectively. Altered plagioclase and olivine are dissolved during this process. The mean 87Sr/86Sr of four HCl-treated samples from hole 332A is 0.70299 and that for five samples from hole 332B is 0.70297. The 87Sr/86Sr ratios of treated samples from holes 333A and 335 are 0.70304 +/- 4 and 0.70316 +/- 4, respectively. These 87Sr/86Sr ratios are within the range observed for other basalts elsewhere along the Mid-Atlantic Ridge in the North Atlantic.
REE distribution patterns have been determined for four samples, three from hole 332B and one from hole 335. CeN/YbN ratios range from 0.58 to 1.30 and do not correlate with 87Sr/86Sr ratios. The source regions of these basalts appear to have been variable in REE abundances.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 37.068562 * Median Longitude: -34.371239 * South-bound Latitude: 36.840800 * West-bound Longitude: -35.198700 * North-bound Latitude: 37.295700 * East-bound Longitude: -33.641000
Date/Time Start: 1974-06-17T00:00:00 * Date/Time End: 1974-07-18T00:00:00
Event(s):
37-332A * Latitude: 36.878700 * Longitude: -33.641000 * Date/Time: 1974-06-17T00:00:00 * Elevation: -1818.0 m * Penetration: 434.5 m * Recovery: 66.2 m * Location: North Atlantic/VALLEY * Campaign: Leg37 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 39 cores; 370.5 m cored; 0 m drilled; 17.9 % recovery
37-332B * Latitude: 36.878700 * Longitude: -33.641000 * Date/Time: 1974-06-17T00:00:00 * Elevation: -1806.0 m * Penetration: 721.5 m * Recovery: 122.9 m * Location: North Atlantic/VALLEY * Campaign: Leg37 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 48 cores; 582.5 m cored; 0 m drilled; 19.4 % recovery
37-333 * Latitude: 36.840800 * Longitude: -33.667500 * Date/Time: 1974-07-06T00:00:00 * Elevation: -1666.0 m * Penetration: 231 m * Recovery: 37.5 m * Location: North Atlantic/VALLEY * Campaign: Leg37 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 65 m cored; 4.5 m drilled; 57.7 % 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. O'Nions, RK; Pankhurst, RJ (1976): (Table 3) Rare earth element contents of basalts from DSDP Leg 37. https://doi.org/10.1594/PANGAEA.708705
  2. O'Nions, RK; Pankhurst, RJ (1976): (Appendix) Sample description of DSDP Leg 37. https://doi.org/10.1594/PANGAEA.708700
  3. O'Nions, RK; Pankhurst, RJ (1976): (Table 1) 87Sr/86Sr ratios of basalts from DSDP Leg 37. https://doi.org/10.1594/PANGAEA.708702
  4. O'Nions, RK; Pankhurst, RJ (1976): (Table 2) 87Sr/86Sr ratios of leaching experiments with basalts from DSDP Leg 37. https://doi.org/10.1594/PANGAEA.708703