(Table T1) Stable carbon and oxygen isotope ratios of benthic foraminifera in the Late Pliocene-Pleistocene section of ODP Site 181-1123 in the Southwest Pacific ...

• Main Author: Harris, Sara E
• Format: Dataset
• Language: English
• Published: PANGAEA 2002
• Subjects: DEPTH, sediment/rock; Depth, composite; Depth, composite revised; Sample code/label; Cibicides wuellerstorfi, δ13C; Cibicides wuellerstorfi, δ18O; Cibicides sp., δ13C; Cibicides sp., δ18O; Cibicides cicatricosus, δ13C; Cibicides cicatricosus, δ18O; Cibicides corpulentus, δ13C; Cibicides corpulentus, δ18O; Cibicides kullenbergi, δ13C; Cibicides kullenbergi, δ18O; Cibicides pachyderma, δ13C; Cibicides pachyderma, δ18O; Cibicides robertsonianus, δ18O; Nuttallides umbonifera, δ13C; Nuttallides umbonifera, δ18O; Uvigerina hispida, δ13C; Uvigerina hispida, δ18O; Uvigerina peregrina, δ13C; Uvigerina peregrina, δ18O; Uvigerina sp., δ13C; Uvigerina sp., δ18O; Comment; Composite Core; DSDP/ODP/IODP sample designation; Mass spectrometer Finnigan MAT 252; Leg181; Joides Resolution; Ocean Drilling Program ODP; North Atlantic; Southern Ocean
• Online Access: https://dx.doi.org/10.1594/pangaea.700860; https://doi.pangaea.de/10.1594/PANGAEA.700860

Stable isotope records were generated for a late Pliocene-early Pleistocene interval from Ocean Drilling Program (ODP) Site 1123 in the southwest Pacific (41°47 S, 171°30 W; 3290 m water depth). Based on these data, new revisions were made to the shipboard splice and composite section. The isotope records will be used to evaluate the influence of North Atlantic and Southern Ocean deepwater masses on water entering the Pacific in the Deep Western Boundary Current. Three holes were cored at Site 1123, yielding a complete composite section over approximately the last 4.7 m.y. A representative spliced record (“the splice”) was developed aboard ship based on magnetic susceptibility, gamma ray attenuation bulk density, and percent reflectance data from the three adjacent holes (Carter, McCave, Richter, Carter, et al., 1999, doi:10.2973/odp.proc.ir.181.2000). No gaps in the sedimentary record were detected for the multiple-cored section of Site 1123. In addition to the isotope data, postcruise revisions to the ... : Depth, sediment is the depth of each Hole (mbsf). Interspecies corrections for oxygen isotope values followed Shackleton (1974), adding 0.64 to delta18O values from Cibicides sp. An offset of -0.9 was added to delta13C values measured from Uvigerina sp. (Duplessy et al., 1984, doi:10.1016/0033-5894(84)90099-1); 0.35 was added to the delta18O value for the single Nuttalides umbonifera analyzed (Shackleton and Hall, 1984, doi:10.2973/dsdp.proc.81.116.1984). The average species offsets between C. wuellerstorfi and Uvigerina sp. that were calculated for duplicates within the Site 1123 data set are in statistical agreement with these offsets ...