Coarse fraction, radiocarbon datings, and planktic stable isotope data from sediment core PS93/031-5 (NW Fram Strait) ...

• Main Authors: Spielhagen, Robert F, Mackensen, Andreas
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2021
• Subjects: Coarse fraction; Fram Strait; isotopes; Neogloboquadrina pachyderma; Quaternary; Environmental and Climate History Off NorthEast Greenland ECHONEG; System Laptev-Sea Transdrift TRANSDRIFT; Greenland; laptev; Laptev Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.930425; https://doi.pangaea.de/10.1594/PANGAEA.930425

The coarse fraction content and the oxygen and carbon isotopic compositions of two morphotyes of planktic foraminifers Neogloboquadrina pachyderma were determined from sediment samples obtained from sediment core PS93/031-5. The age model is based on 9 radiocarbon datings obtained on ~2000 specimens of N. pachyderma each.Grain size measurements occurred in May-July 2017. Stable isotope measurements were performed in August 2018 to February 2019. Radiocarbon datings were performed in August 2018 to April 2019. According to the radiocarbon datings (no reservoir correction applied) the sediment core covers the Late Quaternary time interval from 4,023 to 18,135 years before present (1950 CE). No sediments are present from the interval 11,170-15,950 years before present (hiatus at 25 cm core depth). When a conversion to calibrated years is performed with the program Calib 8.2 (http://calib.org/calib/), using the IntCal20 data set and applying a reservoir correction of 550 years, the core covers the interval of ...