Planktic foraminiferal and sea surface temperature record during the last 1 Myr across the Subtropical Front, Southwest Pacific ...

Planktic foraminiferal faunas and modern analogue technique estimates of sea surface temperature (SST) for the last 1 million years (Myr) are compared between core sites to the north (ODP 1125, 178 faunas) and south (DSDP 594, 374 faunas) of the present location of the Subtropical Front (STF), east...

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Bibliographic Details
Main Authors: Schaefer, Grace, Rodger, J Stuart, Hayward, Bruce William, Kennett, James P, Sabaa, Ashwaq T, Scott, George H
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2005
Subjects:
Composite Core
Drilling/drill rig
Gravity corer
Leg90
Leg181
Glomar Challenger
Joides Resolution
Deep Sea Drilling Project DSDP
Ocean Drilling Program ODP
Neogloboquadrina pachyderma
Online Access:https://dx.doi.org/10.1594/pangaea.691478
https://doi.pangaea.de/10.1594/PANGAEA.691478
Description
Summary:Planktic foraminiferal faunas and modern analogue technique estimates of sea surface temperature (SST) for the last 1 million years (Myr) are compared between core sites to the north (ODP 1125, 178 faunas) and south (DSDP 594, 374 faunas) of the present location of the Subtropical Front (STF), east of New Zealand. Faunas beneath cool subtropical water (STW) north of the STF are dominated by dextral Neogloboquadrina pachyderma, Globorotalia inflata, and Globigerina bulloides, whereas faunas to the south are strongly dominated by sinistral N. pachyderma (80–95% in glacials), with increased G. bulloides (20–50%) and dextral N. pachyderma (15–50%) in interglacials (beneath Subantarctic Water, or SAW). Canonical correspondence analysis indicates that at both sites, SST and related factors were the most important environmental influences on faunal composition. Greater climate-related faunal fluctuations occur in the south. Significant faunal changes occur through time at both sites, particularly towards the end of ... : Further relevante data sets: Wells and Okada (1997, doi:10.1594/PANGAEA.681280), Weaver et al. (1998, doi:10.1594/PANGAEA.691461) ...

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