Nannofossil biohorizons of the late Oligocene section of ODP Hole 120-748B from the Kerguelen Plateau, Southern Ocean (Table 2) ...

• Main Authors: Villa, Giuliana, Persico, Davide
• Format: Dataset
• Language: English
• Published: PANGAEA 2006
• Subjects: DEPTH, sediment/rock; Sample code/label; Sample code/label 2; Ageprofile Datum Description; Age model; Drilling/drill rig; DSDP/ODP/IODP sample designation; Age model, Berggren et al 1995 BKSA95; Leg120; Joides Resolution; Ocean Drilling Program ODP; Antarc*; Antarctica; Southern Ocean
• Online Access: https://dx.doi.org/10.1594/pangaea.693986; https://doi.pangaea.de/10.1594/PANGAEA.693986

Palaeoecological changes in nannofossil assemblages in the Southern Ocean during Oligocene times are examined through high-resolution, quantitative analyses of samples from Ocean Drilling Program (ODP) Site 748 (Kerguelen Plateau). We quantitatively characterized the palaeoecological preference of groups of species and compared their general trends with those determined at Maud Rise (ODP Sites 690 and 689) (Persico, D., Villa, G., 2004. Eocene-Oligocene calcareous nannofossils from Maud Rise and Kerguelen Plateau (Antarctica): palaeoecological and palaeoceanographic implications. Marine Micropaleontology 52, 153-179, doi:10.1016/j.marmicro.2004.05.002). We then attempt a correlation between the main assemblage variation and sea-surface temperature (SST) changes in the Southern Ocean at this time. Relatively stable, cool conditions are interpreted to have persisted from earliest to late Oligocene times, when an increase in abundance of temperate-water taxa is recorded, both at Maud Rise and Kerguelen Plateau, ... : Supplement to: Villa, Giuliana; Persico, Davide (2006): Late Oligocene climatic changes: Evidence from calcareous nannofossils at Kerguelen Plateau Site 748 (Southern Ocean). Palaeogeography, Palaeoclimatology, Palaeoecology, 231(1-2), 110-119 ...