Haley, Brian A; Frank, Martin; Spielhagen, Robert F; Eisenhauer, Anton (2008): Neodymium and Strontium chemistry of IODP Exp302-Composite Site [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.769603, In supplement to: Haley, BA et al. (2008): Influence of brine formation on Arctic Ocean circulation over the past 15 million years. Nature Geoscience, 1, 68-72, https://doi.org/10.1038/ngeo.2007.5
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Project(s):
Coverage:
Latitude: 87.890000 * Longitude: 137.650000
Minimum DEPTH, sediment/rock: 10.81 m * Maximum DEPTH, sediment/rock: 189.68 m
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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Haley, Brian A | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Sample mass | Samp m | g | Haley, Brian A | ||
| 4 | AGE | Age | ka BP | Geocode | ||
| 5 | ε-Neodymium | ε-Nd | Haley, Brian A | Weak-leache of metal-oxide coating on the sediment particles | ||
| 6 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Haley, Brian A | Weak-leach solution, internally normalized for instrument drift using 88Sr/86Sr = 8.37521 | ||
| 7 | ε-Neodymium | ε-Nd | Haley, Brian A | Total Dissolution: Following the weak leach (i.e., the metal-oxide coating signal), a strong leach was done, then the sediments digested in HF/HNO3 for analyses of the bulk sediment Nd and Sr isotopic composition. | ||
| 8 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Haley, Brian A | Total Dissolution: Following the weak leach (i.e., the metal-oxide coating signal), a strong leach was done, then the sediments digested in HF/HNO3 for analyses of the bulk sediment Nd and Sr isotopic composition. | ||
| 9 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Haley, Brian A | Seawater 87Sr/86Sr for a given age estimate from the polynomial of McArthur et al., (2001, doi:10.1086/319243) | ||
| 10 | Strontium | Sr | % | Haley, Brian A | Mass-balance estimate of the percent of the weak leach 87Sr/86Sr signal potentially derived from clay contamination (SrTD) of a contemporaneous seawater 87Sr/86Sr signal (SrSW)10 | |
| 11 | - | - | Haley, Brian A | Dekta epsilon-Nd from 5% clay. Given a maximum (overestimate) contamination from clays of 5% (from Sr mass balance calculations), the potential deviation of clay-sourced Nd (NdTD) on the weak leach is estimated. In all cases, the value is less than the 2 sigma measurement error of 0.5, thus the potential for clay contamination can be ignored. |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
138 data points