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Weaver, Philip PE; Carter, Lionel; Neil, Helen L (1998): Planktonic foraminifera abundances and isotopes of Late Quaternary sediments off New Zealand [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.866903, Supplement to: Weaver, PPE et al. (1998): Response of surface water masses and circulation to Late Quaternary climate change east of New Zealand. Paleoceanography, 13(1), 70-83, https://doi.org/10.1029/97PA02982

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Abstract:
A series of cores from east of New Zealand have been examined to determine the paleoceanographic history of the late Quaternary in the SW Pacific using planktonic foraminiferal data. Distinct shifts of species can be seen between glacial and interglacial times especially south of Chatham Rise east of South Island. Foraminiferal fragmentation ratios and benthic/planktonic foraminiferal ratios both show increased dissolution during glacials, especially isotope stage 2 to the south of Chatham Rise. The present-day Subtropical Convergence appears to be tied to the Chatham Rise at 44°S, but during glacial times this rise separated cold water to the south from much warmer water to the north, with an associated strong thermal gradient across the rise. We estimate that this gradient could have presented as much as an 8°C temperature change across 4° of latitude during the maximum of the last ice age. There is only weak evidence of the Younger Dryas cool event, but there is a clear climatic optimum between 8 and 6.4 ka with temperatures 1°-2°C higher than the present day. The marine changes compare well with vegetational changes on both South and North Island.
Related to:
Weaver, Philip PE; Carter, Lionel; Neil, Helen L (1998): NOAA/WDS Paleoclimatology - Late Quaternary SW Pacific Foraminifer Data. NOAA National Centers for Environmental Information, https://doi.org/10.25921/56P7-PE54
Coverage:
Median Latitude: -43.664870 * Median Longitude: 179.474609 * South-bound Latitude: -49.995000 * West-bound Longitude: 172.025000 * North-bound Latitude: -35.310000 * East-bound Longitude: -171.500000
Date/Time Start: 1983-01-03T00:00:00 * Date/Time End: 1983-01-03T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
23 datasets

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Datasets listed in this publication series

  1. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminifera factor analyses in sediment core 90-594. https://doi.org/10.1594/PANGAEA.866894
  2. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminiferal abundances in sediment core 90-594. https://doi.org/10.1594/PANGAEA.866879
  3. Weaver, PPE; Carter, L; Neil, HL (1998): Isotopic ratios and CaCO3 content in sediment core CHAT_1k. https://doi.org/10.1594/PANGAEA.866887
  4. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminifera factor analyses in sediment core CHAT_1k. https://doi.org/10.1594/PANGAEA.866895
  5. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminiferal abundances in sediment core CHAT_1k. https://doi.org/10.1594/PANGAEA.866880
  6. Weaver, PPE; Carter, L; Neil, HL (1998): Isotopic ratios and CaCO3 content in sediment core P69. https://doi.org/10.1594/PANGAEA.866888
  7. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminifera factor analyses in sediment core P69. https://doi.org/10.1594/PANGAEA.866896
  8. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminiferal abundances in sediment core P69. https://doi.org/10.1594/PANGAEA.866902
  9. Weaver, PPE; Carter, L; Neil, HL (1998): Isotopic ratios and CaCO3 content in sediment core Q200. https://doi.org/10.1594/PANGAEA.866889
  10. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminifera factor analyses in sediment core Q200. https://doi.org/10.1594/PANGAEA.866897
  11. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminiferal abundances in sediment core Q200. https://doi.org/10.1594/PANGAEA.866882
  12. Weaver, PPE; Carter, L; Neil, HL (1998): Isotopic ratios and CaCO3 content in sediment core Q585. https://doi.org/10.1594/PANGAEA.866890
  13. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminifera factor analyses in sediment core Q585. https://doi.org/10.1594/PANGAEA.866898
  14. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminiferal abundances in sediment core Q585. https://doi.org/10.1594/PANGAEA.866883
  15. Weaver, PPE; Carter, L; Neil, HL (1998): Isotopic ratios and CaCO3 content in sediment core R657. https://doi.org/10.1594/PANGAEA.866891
  16. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminifera factor analyses in sediment core R657. https://doi.org/10.1594/PANGAEA.866899
  17. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminiferal abundances in sediment core R657. https://doi.org/10.1594/PANGAEA.866884
  18. Weaver, PPE; Carter, L; Neil, HL (1998): Isotopic ratios and CaCO3 content in sediment core S794. https://doi.org/10.1594/PANGAEA.866892
  19. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminifera factor analyses in sediment core S794. https://doi.org/10.1594/PANGAEA.866900
  20. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminiferal abundances in sediment core S794. https://doi.org/10.1594/PANGAEA.866885
  21. Weaver, PPE; Carter, L; Neil, HL (1998): Isotopic ratios and CaCO3 content in sediment core U938. https://doi.org/10.1594/PANGAEA.866893
  22. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminifera factor analyses in sediment core U938. https://doi.org/10.1594/PANGAEA.866901
  23. Weaver, PPE; Carter, L; Neil, HL (1998): Planktonic foraminiferal abundances in sediment core U938. https://doi.org/10.1594/PANGAEA.866886