Radiocarbon ages of bulk samples of foraminifera, or mean radiocarbon ages of smaller samples of sediment cores

• Main Authors: Dolman, Andrew M, Groeneveld, Jeroen, Mollenhauer, Gesine, Ho, Sze Ling, Laepple, Thomas
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Age; 14C AMS; dated; dated material; dated standard deviation; AWI_Envi; Depth; bottom/max; sediment/rock; top/min; Elevation of event; Event label; Foraminifera; GC; GeoB10054-4; GeoB10058-1; GeoB10066-7; Gravity corer; Gravity corer (Kiel type); Latitude of event; Longitude of event; marine; MUC; MultiCorer; Number of specimens; OR1-1218-C2-BC; PABESIA; Polar Terrestrial Environmental Systems @ AWI; radiocarbon; replicated; sediment; Size fraction; SL; SO184/2; SO213/2; SO213/2_84-2; Sonne; SOPATRA; South Pacific Ocean; Subcore; Pacific; Alfred Wegener Institute
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.926070; https://doi.org/10.1594/PANGAEA.926070

Radiocarbon was measured on mono-specific samples of between 30 and 350 individual foraminiferal tests taken from five different sediment cores. Single samples were taken at each depth with the aim of developing a down-core age-depth model. For cores GeoB10058-1, GeoB10054-4, GeoB10066-7 and OR1-1218-C2-BC, radiocarbon dating was performed by Accelerated Mass Spectrometry (AMS) using a Mini Carbon Dating System (MICADAS) (Wacker et al. 2010) at the Alfred Wegener Institute, Bremerhaven, Germany, and following standard operating procedures. Samples were measured using a graphite target, except for the single sample from OR1-1218-C2-BC with only 30 specimens, for which a gas target was used. Blanks were processed and correction performed according to a procedure in Sun et al. (2020). Radiocarbon dating of the bulk samples from core SO213-84-2 was carried out on the 15th of May 2014, at NOSAMS, Woods Hole Oceanographic Institution and Keck Carbon Cycle AMS Laboratory, University of California, Irvine.