Hydrographic control on carbon isotope fractionation in coccolithophores in the North Atlantic during the Mid-Pleistocene ...

• Main Authors: Hernández-Almeida, Iván, Guitián, José, Tanner, Thomas, Zhang, Hongrui, Stoll, Heather M
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Alkenone; carbon isotope fractionation; coccolithophore; growth rate; mid-Pleistocene transition; North Atlantic; Event label; Latitude of event; Longitude of event; Sample code/label; Core section, comment; DEPTH, sediment/rock; AGE; Foraminifera, planktic δ13C; Foraminifera, planktic δ13C, standard deviation; Foraminifera, planktic δ18O; Foraminifera, planktic δ18O, standard deviation; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Size fraction; Foraminifera, benthic δ18O; Neogloboquadrina pachyderma sinistral; Turborotalita quinqueloba; Calcium carbonate; Alkenone, unsaturation index UK'37; Alkenone, unsaturation index UK'37, standard error; Sea surface temperature; Alkenone, δ13C; Alkenone, δ13C, standard error; δ13C, particulate organic carbon; Thermodynamic temperature; Δδ13C, dissolved inorganic carbon; δ13C, carbon dioxide, aquatic; Isotopic fractionation, during photosynthis; Drilling/drill rig; DSDP/ODP/IODP sample designation; Isotope ratio mass spectrometry; Calculated from UK37 Müller et al, 1998; Gas chromatography - Isotope ratio mass spectrometer GC-IRMS; Leg162; Exp306; Exp339; Joides Resolution; Neogloboquadrina pachyderma
• Online Access: https://dx.doi.org/10.1594/pangaea.952902; https://doi.pangaea.de/10.1594/PANGAEA.952902

This dataset includes new records of carbon isotope fractionation during photosynthesis (Ɛp) analysed in sediment samples from five IODP/ODP cores (982, 984, U1314, U1313 and U1385) located in the the North Atlantic (66°-37°N), between marine isotope stage (MIS) 20 and 11 (~800 to 400 ka). In addition we generated new benthic and planktic stable isotopes, alkenone-SST, coccolithophore size and planktonic foraminiera faunal census counts records for the same samples. Using this dataset, we therefore aim to 1) assess the sensitivity of Ɛp in high and mid-latitude environments and 2) document the relationship between changes in Ɛp and hydrographic conditions (SST, nutrients, CO2[aq]) in the North Atlantic. ...