(Appendix) Analysis of benthic foraminifera from ODP Leg 181 and DSDP Leg 90 ...

• Main Authors: Hayward, Bruce William, Grenfell, Hugh R, Carter, Rowan, Hayward, Jessica J
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: Event label; Date/Time of event; Sample code/label; Latitude of event; Longitude of event; Depth, composite; Sample ID; AGE; Comment; Number; Foraminifera, planktic; Fragmentation index; Size fraction > 0.063 mm, sand; Species diversity; Evenness of species; Foraminifera, per unit sediment mass; Foraminifera, benthic; Foraminifera, benthic, flux; Drilling/drill rig; DSDP/ODP/IODP sample designation; Intercore correlation; Calculated; Counting; Leg90; Leg181; Glomar Challenger; Joides Resolution; Ocean Drilling Program ODP; Antarc*; Antarctic
• Online Access: https://dx.doi.org/10.1594/pangaea.856548; https://doi.pangaea.de/10.1594/PANGAEA.856548

Canonical correspondence analysis indicates that the distribution of Neogene benthic foraminiferal faunas (>63 µm) in seven DSDP and ODP sites (500-4500 m water depth) east of New Zealand (38-51°S, 170°E-170°W) is most strongly influenced by depth (water mass stratification), and secondly by age (palaeoceanographic changes influencing faunal composition and biotic evolution). Stratigraphic faunal changes are interpretted in terms of the pulsed sequential development of southern, and later northern, polar glaciation and consequent cooling of bottom waters, increased vertical and lateral stratification of ocean water masses, and increased overall and seasonal surface water productivity. Oligocene initiation of the Antarctic Circumpolar Current and Deep Western Boundary Current (DWBC), flowing northwards past New Zealand, resulted in extensive hiatuses throughout the Southwest Pacific, some extending through into the Miocene. Planktic foraminiferal fragmentation index values indicate that carbonate ... : Supplement to: Hayward, Bruce William; Grenfell, Hugh R; Carter, Rowan; Hayward, Jessica J (2004): Benthic foraminiferal proxy evidence for the Neogene palaeoceanographic history of the Southwest Pacific, east of New Zealand. Marine Geology, 205(1-4), 147-184 ...