Early Cretaceous sea water and detrial Nd isotope signatures at DSDP Sites 25-249, 36-327,40- 361, 71-511 and ODP Site 113-693 ...

• Main Authors: Dummann, Wolf, Steinig, Sebastian, Hofmann, Peter, Flögel, Sascha, Osborne, Anne H, Frank, Martin, Herrle, Jens O, Bretschneider, Lisa, Sheward, Rosie M, Wagner, Thomas
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Cretaceous; Nd isotopes; South Atlantic; Southern Ocean; Event label; Sample code/label; DEPTH, sediment/rock; Age; AGE; Neodymium-143/Neodymium-144 ratio; ε-Neodymium; ε-Neodymium, standard deviation; ε-Neodymium T; Drilling/drill rig; DSDP/ODP/IODP sample designation; Age model, Gradstein et al. 2012 GTS2012; Calculated; Calculated, 2 sigma; Corrected; Leg25; Leg36; Leg40; Leg71; Leg113; Glomar Challenger; Joides Resolution; Deep Sea Drilling Project DSDP; Ocean Drilling Program ODP; South Atlantic Ocean
• Online Access: https://dx.doi.org/10.1594/pangaea.943507; https://doi.pangaea.de/10.1594/PANGAEA.943507

This data set comprises radiogenic neodymium (Nd) isotope signatures of past deep water masses and detrital matter in the Early Cretaceous (Barremian-Albian) South Atlantic Ocean and Southern Ocean, recorded at Deep Sea Drilling Project (DSDP) Sites 249, 327, 361, and 511 and Ocean Drilling Project (ODP) Site 693. Deep water Nd isotope compositions were leached from authigenic ferromanganese coatings of bulk sediment particles. Detrital Nd isotope signatures were obtained from residues of the sediment leaching procedures after dissolution via alkaline fusion. Age estimates for individual samples were calculated based on biostratigraphic and carbon isotope stratigraphic age constraints and calibrated to the time GTS2012 time scale of Gradstein et al. (2012). ...