Paul, Sophie Anna Luise: Neodymium isotope compositions of authigenic and detrital sedimentary phases from sediment cores during Maria S. Merian cruise MSM96 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.981263 (dataset in review), In: Paul, SAL: Neodymium isotope compositions, rare element concentrations and ancillary geochemical data for sediment cores, pore water and bottom seawater from the Atlantic and Pacific Oceans [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.981262 (dataset in review)
Abstract:
The Neodymium (Nd) isotopic signature (εNd) has been widely used as a proxy to reconstruct past ocean circulation. Sediments were freeze-dried prior to leaching. Authigenic phases were extracted through a 10 seconds leaching procedure using 0.005 M hydroxylammonium hydrochloride, 1.5% acetic acid, and 0.03 M Na-EDTA buffered to ca. pH 4 with NaOH solution (Huang et al., 2021). For selected samples, data is also provided for a "strong" leach using 0.05 M hydroxylammonium hydrochloride, 15% acetic acid and 0.03 M Na-EDTA buffered to ca. pH 4 with NaOH, that followed after a decarbonation step. The leftover detrital sediment fraction was processed using alkaline fusion. Neodymium was purified using first BIORAD AG50W-X12 resin, followed by Eichchrom Ln-spec resin. Samples were measured by MC-ICP-MS.
Project(s):
JPI Oceans - Ecological Aspects of Deep-Sea Mining (JPIO-MiningImpact)
Funding:
German Research Foundation (DFG), grant/award no. 458637508: Early diagenetic alteration of rare earth element and yttrium (REY) signals in marine sediments and impact on the use of REY as tracers in past and present marine environments
Coverage:
Median Latitude: 45.542695 * Median Longitude: -15.432147 * South-bound Latitude: 38.155870 * West-bound Longitude: -17.514530 * North-bound Latitude: 48.100130 * East-bound Longitude: -14.696870
Date/Time Start: 2020-10-16T01:07:03 * Date/Time End: 2020-10-27T14:11:14
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.320 m
Event(s):
MSM96_11-1 (KIEL0233GEMU201) * Latitude: 47.898530 * Longitude: -14.815270 * Date/Time: 2020-10-16T01:07:03 * Elevation: -5730.4 m * Location: North Atlantic Ocean * Campaign: MSM96 (GPF 20‐3_088) * Basis: Maria S. Merian * Method/Device: Multicorer with television (TVMUC)
MSM96_22-1 (KIEL0233GERU201) * Latitude: 48.100130 * Longitude: -14.696870 * Date/Time: 2020-10-18T23:59:02 * Elevation: -4820.8 m * Location: North Atlantic Ocean * Campaign: MSM96 (GPF 20‐3_088) * Basis: Maria S. Merian * Method/Device: MultiCorer (MUC)
MSM96_27-1 (KIEL0233GEUU201) * Latitude: 48.016250 * Longitude: -14.701920 * Date/Time: 2020-10-20T11:12:25 * Location: North Atlantic Ocean * Campaign: MSM96 (GPF 20‐3_088) * Basis: Maria S. Merian * Method/Device: MultiCorer (MUC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Paul, Sophie Anna Luise | |||
| 2 | Date/Time of event | Date/Time | Paul, Sophie Anna Luise | |||
| 3 | Latitude of event | Latitude | Paul, Sophie Anna Luise | |||
| 4 | Longitude of event | Longitude | Paul, Sophie Anna Luise | |||
| 5 | Station label | Station | Paul, Sophie Anna Luise | |||
| 6 | DEPTH, sediment/rock | Depth sed | m | Paul, Sophie Anna Luise | Geocode | |
| 7 | Depth, top/min | Depth top | m | Paul, Sophie Anna Luise | ||
| 8 | Depth, bottom/max | Depth bot | m | Paul, Sophie Anna Luise | ||
| 9 | Sample code/label | Sample label | Paul, Sophie Anna Luise | |||
| 10 | Neodymium-143/Neodymium-144 ratio | 143Nd/144Nd | Paul, Sophie Anna Luise | |||
| 11 | Neodymium-143/Neodymium-144 ratio, standard error | 143Nd/144Nd std e | ± | Paul, Sophie Anna Luise | 2 SE | |
| 12 | ε-Neodymium | ε-Nd | Paul, Sophie Anna Luise | isotopic composition | ||
| 13 | ε-Neodymium, error | ε-Nd e | ± | Paul, Sophie Anna Luise | 2 SE | |
| 14 | ε-Neodymium, standard deviation | ε-Nd std dev | ± | Paul, Sophie Anna Luise | 2 SD |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
639 data points