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Waddell, Lindsey M; Moore, Theodore C (2008): Salinity of the Eocene Arctic Ocean from oxygen isotope analysis of fish bone carbonate [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.733934, Supplement to: Waddell, LM; Moore, TC (2008): Salinity of the Eocene Arctic Ocean from oxygen isotope analysis of fish bone carbonate. Paleoceanography, 23, PA1S04, https://doi.org/10.1029/2007PA001451

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Abstract:
Stable isotope analysis was performed on the structural carbonate of fish bone apatite from early and early middle Eocene samples (~55 to ~45 Ma) recently recovered from the Lomonosov Ridge by Integrated Ocean Drilling Program Expedition 302 (the Arctic Coring Expedition). The d18O values of the Eocene samples ranged from -6.84 per mil to -2.96 per mil Vienna Peedee belemnite, with a mean value of -4.89 per mil, compared to 2.77 per mil for a Miocene sample in the overlying section. An average salinity of 21 to 25 per mil was calculated for the Eocene Arctic, compared to 35 per mil for the Miocene, with lower salinities during the Paleocene Eocene thermal maximum, the Azolla event at ~48.7 Ma, and a third previously unidentified event at ~47.6 Ma. At the Azolla event, where the organic carbon content of the sediment reaches a maximum, a positive d13C excursion was observed, indicating unusually high productivity in the surface waters.
Project(s):
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Coverage:
Median Latitude: 87.902980 * Median Longitude: 138.302457 * South-bound Latitude: 87.866580 * West-bound Longitude: 136.177350 * North-bound Latitude: 87.921180 * East-bound Longitude: 139.365010
Date/Time Start: 2004-08-19T00:00:00 * Date/Time End: 2004-08-27T00:00:00
Event(s):
302-CompSite * Latitude: 87.890000 * Longitude: 137.650000 * Elevation: -1251.0 m * Campaign: Exp302 (Arctic Coring Expedition, ACEX) * Basis: CCGS Captain Molly Kool (Vidar Viking) * Method/Device: Composite Core (COMPCORE) * Comment: Virtual core composed of spliced cores from Holes M0002A, M0003A, M0004A and M0004C. Virtual position and water depth is calculated as the mean of all Exp302 sites.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets

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Datasets listed in this publication series

  1. Waddell, LM; Moore, TC (2008): (Table 3) Stable isotope data from the analysis of fish bones and the calculated salinity range in IODP Exp302. https://doi.org/10.1594/PANGAEA.733925
  2. Waddell, LM; Moore, TC (2008): (Table 4) Estimates of Arctic Ocean temperature and salinity for the PETM and the Azolla event in IODP Exp302. https://doi.org/10.1594/PANGAEA.733933
  3. Waddell, LM; Moore, TC (2008): (Table 1) Chemical treatment test performed on samples of IODP Hole 302-M0002A. https://doi.org/10.1594/PANGAEA.832460