(Table 3) Oxygen and carbon isotopic record of living (Rose Bengal Stained) benthic foraminifera of North Atlantic surface sediments ...

• Main Authors: Corliss, Bruce H, McCorkle, Daniel C, Higdon, David M
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: Event label; Latitude of event; Longitude of event; Elevation of event; Date/Time of event; Sample code/label; DEPTH, sediment/rock; Depth, top/min; Depth, bottom/max; Size fraction; Hoeglundina elegans, δ13C; Hoeglundina elegans, δ18O; Uvigerina peregrina, δ13C; Uvigerina peregrina, δ18O; Planulina wuellerstorfi, δ13C; Planulina wuellerstorfi, δ18O; Soil combustion; MultiCorer; Mass spectrometer Finnigan MAT 252; Nantucket; North Atlantic; Northwest Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.844864; https://doi.pangaea.de/10.1594/PANGAEA.844864

Variation of the d13C of living (Rose Bengal stained) deep-sea benthic foraminifera is documented from two deep-water sites (~2430 and ~3010 m) from a northwest Atlantic Ocean study area 275 km south of Nantucket Island. The carbon isotopic data of Hoeglundina elegans and Uvigerina peregrina from five sets of Multicorer and Soutar Box Core samples taken over a 10-month interval (March, May, July, and October 1996 and January 1997) are compared with an 11.5 month time series of organic carbon flux to assess the effect of organic carbon flux on the carbon isotopic composition of dominant taxa. Carbon isotopic data of Hoeglundina elegans at 3010 m show 0.3 per mil lower mean values following an organic carbon flux maximum resulting from a spring phytoplankton bloom. This d13C change following the spring bloom is suggested to be due to the presence of a phytodetritus layer on the seafloor and the subsequent depletion of d13C in the pore waters within the phytodetritus and overlying the sediment surface. Carbon ... : Supplement to: Corliss, Bruce H; McCorkle, Daniel C; Higdon, David M (2002): A time series study of the carbon isotopic composition of deep-sea benthic foraminifera. Paleoceanography, 17(3), 8-1-8-27 ...