Hingst, Johanna; Okuma, Emmanuel; Lucassen, Friedrich; Kasemann, Simone A: Sr-Nd-Pb isotope composition of the siliciclastic sediment fraction of two marine sediment cores (GeoB22346-3, GeoB22357-3) from the Clyde Inlet area, northeastern Baffin Island [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.962138 (dataset in review)
Abstract:
The Sr-Nd-Pb isotope composition of the siliciclastic sediment fraction of the two marine sediment cores GeoB22346-3 and GeoB22357-3, raised within and off the Clyde Inlet, provide insight into changes in sediment provenances during the late Pleistocene and the Holocene. Variable radiogenic isotope ratios also give evidence about a changing glacier extent on the northeastern Baffin Island and the adjacent shelf as well as changing oceanographic conditions in western Baffin Bay. Sample preparation and radiogenic isotope analysis were conducted in the laboratories of the Isotope Geochemistry Group at MARUM – Center for Marine Environmental Sciences, University of Bremen, Germany. All sediment samples were leached with a NaOH-buffered solution of hydroxylamine hydrochloride and 15% acetic acid to separate the siliciclastic sediment fraction (adapted from Gutjahr et al. 2007, , https://doi.org/10.1016/j.chemgeo.2007.03.021). Sr, Nd, and Pb were separated by column chemistry, and the isotope ratios were measured with a Thermo-Fisher Scientific TRITON Plus thermal ionization mass spectrometer (TIMS).
Related to:
Okuma, Emmanuel; Hingst, Johanna; Weiser, Jens; Madaj, Lina; Titschack, Jürgen; Vogt, Christoph; Kienast, Markus; Hillaire-Marcel, Claude; Hebbeln, Dierk; Kasemann, Simone A (2023): Deglacial and Holocene sediment dynamics and provenances off Lancaster Sound: Implications for paleoenvironmental conditions in northern Baffin Bay. Quaternary Science Reviews, 309, 108101, https://doi.org/10.1016/j.quascirev.2023.108101
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 221211316: GRK/IRTG 1904: ArcTrain - Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic
Coverage:
Median Latitude: 70.253975 * Median Longitude: -69.059950 * South-bound Latitude: 69.903217 * West-bound Longitude: -70.225617 * North-bound Latitude: 70.604733 * East-bound Longitude: -67.894283
Date/Time Start: 2017-08-17T04:25:00 * Date/Time End: 2017-08-19T01:52:00
Minimum DEPTH, sediment/rock: 0.10 m * Maximum DEPTH, sediment/rock: 8.76 m
Event(s):
MSM66/46-3 (GeoB22346-3) * Latitude: 69.903217 * Longitude: -70.225617 * Date/Time: 2017-08-17T04:25:00 * Elevation: -203.0 m * Recovery: 8.96 m * Campaign: MSM66 * Basis: Maria S. Merian * Method/Device: Gravity corer (GC)
MSM66/57-3 (GeoB22357-3) * Latitude: 70.604733 * Longitude: -67.894283 * Date/Time: 2017-08-19T01:52:00 * Elevation: -315.0 m * Recovery: 5 m * Campaign: MSM66 * Basis: Maria S. Merian * Method/Device: Gravity corer (GC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Hingst, Johanna | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Hingst, Johanna | Geocode | |
| 3 | AGE | Age | ka BP | Hingst, Johanna | Geocode | |
| 4 | Sample code/label | Sample label | Hingst, Johanna | |||
| 5 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Hingst, Johanna | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON Plus | ||
| 6 | Strontium-87/Strontium-86 ratio, standard deviation | 87Sr/86Sr std dev | ± | Hingst, Johanna | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON Plus | 2 std dev mean |
| 7 | Neodymium-143/Neodymium-144 ratio | 143Nd/144Nd | Hingst, Johanna | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON Plus | ||
| 8 | Neodymium-143/Neodymium-144 ratio, standard deviation | 143Nd/144Nd std dev | ± | Hingst, Johanna | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON Plus | 2 std dev mean |
| 9 | ε-Neodymium | ε-Nd | Hingst, Johanna | Calculated relative to the Chondritic Uniform Reservoir (CHUR) value of 143Nd/144Nd=0.512638 according to Jacobsen and Wasserburg (1980) | ||
| 10 | Lead-206/Lead-204 ratio | 206Pb/204Pb | Hingst, Johanna | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON Plus | ||
| 11 | Lead-206/Lead-204 ratio, standard deviation | 206Pb/204Pb std dev | ± | Hingst, Johanna | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON Plus | 2 std dev mean |
| 12 | Lead-206/Lead-204 ratio | 206Pb/204Pb | Hingst, Johanna | Corrected by a bulk uncertainty of 0.1 % per atomic mass unit | ||
| 13 | Lead-207/Lead-204 ratio | 207Pb/204Pb | Hingst, Johanna | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON Plus | ||
| 14 | Lead-207/Lead-204 ratio, standard deviation | 207Pb/204Pb std dev | ± | Hingst, Johanna | Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON Plus | 2 std dev mean |
| 15 | Lead-207/Lead-204 ratio | 207Pb/204Pb | Hingst, Johanna | Corrected by a bulk uncertainty of 0.1 % per atomic mass unit |
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:
432 data points