Planktic foraminiferal and Ice Rafted Debris (IRD) counts from ODP Site 981 ...

• Main Author: Barker, Stephen
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Atlantic Inflow; Mid Pleistocene Transition; North Atlantic Current; Event label; Sample code/label; DEPTH, sediment/rock; AGE; Mass; Fraction; Split; Factor; Number; Neogloboquadrina pachyderma sinistral; Foraminifera, planktic, other; Ice rafted debris; Drilling/drill rig; DSDP/ODP/IODP sample designation; Counting >150 µm fraction; Leg162; Joides Resolution; Ocean Drilling Program ODP; Arctic; Foraminifera*; Neogloboquadrina pachyderma; north atlantic current; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.929741; https://doi.pangaea.de/10.1594/PANGAEA.929741

This dataset contains counts of Neogloboquadrina pachyderma, whole foraminifera and Ice Rafted Debris from ODP Site 981 covering the period 0.95-1.1Ma. Sediment samples from the splice of ODP Site 983 [Jansen et al., 1996] were spun overnight and washed with deionised water through a 6 μm sieve before being dried at 40°C. IRD and foraminiferal counts were made on the >150 μm fraction after splitting to yield approximately 300 entities. IRD was considered as the total number of lithogenic/terrigenous grains counted. Only left coiling specimens of N. pachyderma were counted and all 5 morphotypes of N. pachyderma found in recent Arctic sediments [Eynaud, 2011] were counted. ...