Planktic foraminiferal and Ice Rafted Debris (IRD) counts from ODP Site 983

• Main Author: Barker, Stephen
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: 162-983A; 162-983B; 162-983C; Accumulation rate; ice rafted debris by number; mass; planktic foraminifera by number; AGE; Atlantic Inflow; Counting >150 µm fraction; Density; dry bulk; DEPTH; sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Factor; Foraminifera; planktic; other; Fraction; Ice rafted debris; Joides Resolution; Leg162; Mid Pleistocene Transition; Neogloboquadrina pachyderma sinistral; North Atlantic Current; North Atlantic Ocean; Number; Ocean Drilling Program; ODP; Sample code/label; Sedimentation rate; Split; Arctic; Foraminifera*; Neogloboquadrina pachyderma; north atlantic current; North Atlantic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.929721; https://doi.org/10.1594/PANGAEA.929721

This dataset contains counts of Neogloboquadrina pachyderma (%NPS), whole foraminifera and Ice Rafted Debris (IRD) from ODP Site 983 covering the period 0-1.2Ma. Sediment samples from the splice of ODP Site 983 [Jansen et al., 1996] were spun overnight and washed with deionised water through a 63 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.