Sr and Nd isotope composition of the siliciclastic sediment fraction of the marine sediment core GeoB22336-4 from the mouth of Lancaster Sound, northern Baffin Bay ...

• Main Authors: Hingst, Johanna, Okuma, Emmanuel, Lucassen, Friedrich, Kasemann, Simone A
• Format: Dataset
• Language: unknown
• Published: PANGAEA 2024
• Subjects: Baffin Bay; Lancaster Sound; Radiogenic isotopes; sediment provenance; DEPTH, sediment/rock; AGE; Sample code/label; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, standard deviation; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard deviation; ε-Neodymium; Gravity corer; Thermal ionization mass spectrometer, Thermo-Fisher Scientific, TRITON Plus; Calculated relative to the Chondritic Uniform Reservoir CHUR value of 143Nd/144Nd=0.512638 according to Jacobsen and Wasserburg 1980; MSM66; Maria S. Merian; Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic ArcTrain; Arctic; Baffin; Climate change; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.961690; https://doi.pangaea.de/10.1594/PANGAEA.961690

The Sr and Nd isotope composition of the siliciclastic sediment fraction of the marine sediment core GeoB22336-4 from the mouth of Lancaster Sound, northern Baffin Bay, were analyzed to identify changes in sediment provenances during the late Pleistocene and the Holocene. Sample preparation and radiogenic isotope analyses were conducted in the laboratories of the Isotope Geochemistry Group at MARUM – Center for Marine Environmental Sciences, University of Bremen, Germany. To isolate the siliciclastic sediment fraction, sediment samples were leached with a NaOH-buffered solution of hydroxylamine hydrochloride and 15% acetic acid (adapted from Gutjahr et al. 2007, https://doi.org/10.1016/j.chemgeo.2007.03.021). Nd and Sr were separated by column chemistry, and the isotope ratios were measured with a Thermo-Fisher Scientific TRITON Plus thermal ionization mass spectrometer (TIMS). More details on radiogenic isotope analyses can be found in the related paper (https://doi.org/10.1016/j.quascirev.2023.108101). ...