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

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...

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Bibliographic Details
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
Description
Summary: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 ...

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