Middle Pleistocene sea-surface temperature change in the Southwest Pacific Ocean on orbital and suborbital time scales

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doi: 10.1130/0091-7613(2000)28<659:MPSTCI>2.0.CO;2
Author(s): King, Alexandra L.; Howard, William R.
Author Affiliation(s): Primary:
University of Tasmania, Institute of Antarctic and Southern Ocean Studies, Hobart, Tasmania, Australia
Volume Title: Geology (Boulder)
Source: Geology (Boulder), 28(7), p.659-662. Publisher: Geological Society of America (GSA), Boulder, CO, United States. ISSN: 0091-7613 CODEN: GLGYBA
Note: In English. 44 refs.; illus., incl. sketch map
Summary: A record of estimated sea surface temperature (SST) change between 575 and 400 ka has been obtained from planktonic foraminifera at Deep Sea Drilling Project Site 594 in the southwest Pacific Ocean. The Site 594 record indicates that SSTs during marine oxygen isotope stage 11 were similar to those of the Holocene, in contrast to suggestions of warmer than Holocene SSTs during stage 11. If these SSTs reflect global conditions, then ice-sheet collapse may not require temperatures warmer than in the Holocene. Millennial-scale oscillations in SST (∼3°C) occurred within the stage 12 glacial interval, spaced every ∼5-10 k.y., on time scales similar to those observed within stage 12 in the North Atlantic. The consistency between these records may require global-scale mechanisms capable of producing rapid climate change, as suggested for later Quaternary intervals.
Year of Publication: 2000
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
Key Words: 24 Surficial Geology, Quaternary Geology; Antarctic Ocean; Cenozoic; Climate forcing; Cores; DSDP Site 594; Deep Sea Drilling Project; Foraminifera; IPOD; Invertebrata; Leg 90; Marine environment; Marine sediments; Middle Pleistocene; Orbital forcing; Pacific Ocean; Paleo-oceanography; Paleoclimatology; Paleotemperature; Planktonic taxa; Pleistocene; Protista; Quaternary; Sea-surface temperature; Sediments; South Pacific; Southwest Pacific; Time scales; West Pacific
Coordinates: S453129 S453128 E1745653 E1745652
Record ID: 2000056026
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States