Paul, Sophie Anna Luise: Neodymium isotope compositions of authigenic and detrital sedimentary phases from sediment cores during SONNE cruise SO268/1 and SO268/2 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.981264 (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: 12.975375 * Median Longitude: -121.462642 * South-bound Latitude: 11.840783 * West-bound Longitude: -125.916717 * North-bound Latitude: 14.104867 * East-bound Longitude: -117.017317
Date/Time Start: 2019-03-03T09:33:07 * Date/Time End: 2019-05-08T06:52:59
Minimum DEPTH, sediment/rock: 0.01 m * Maximum DEPTH, sediment/rock: 0.18 m
Event(s):
SO268/1_18-1 (MUC-04) * Latitude: 11.924233 * Longitude: -117.017317 * Date/Time: 2019-03-03T09:33:07 * Elevation: -4099.3 m * Location: Clarion-Clipperton Fraction Zone, North East Pacific Ocean * Campaign: SO268/1 * Basis: Sonne_2 * Method/Device: MultiCorer (MUC) * Comment: GER Trial; Position USBL
SO268/1_67-1 (MUC-16) * Latitude: 14.104867 * Longitude: -125.861300 * Date/Time: 2019-03-18T11:51:49 * Elevation: -4514.1 m * Location: Clarion-Clipperton Fraction Zone, North East Pacific Ocean * Campaign: SO268/1 * Basis: Sonne_2 * Method/Device: MultiCorer (MUC) * Comment: BEL Trial
SO268/2_139-1 (MUC-30) * Latitude: 14.031617 * Longitude: -125.916717 * Date/Time: 2019-04-19T11:48:29 * Elevation: -4523.5 m * Location: Clarion-Clipperton Fraction Zone, North East Pacific Ocean * Campaign: SO268/2 * Basis: Sonne_2 * Method/Device: MultiCorer (MUC) * Comment: BEL Reference; Position USBL
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:
324 data points