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Maier, Edith (2014): Paleoceanography of sediment cores SO202-27-6 during MIS 3 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.834413

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Published: 2014-07-26 • DOI registered: 2014-08-28

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Abstract:
The modern subarctic Pacific is characterized by a steep salinity-driven surface water stratification, which hampers the supply of saline and nutrient-rich deeper waters into the euphotic zone, limiting productivity. However, the strength of the halocline might have varied in the past. Here, we present diatom oxygen (d18Odiat) and silicon (d30Sidiat) stable isotope data from the open subarctic North-East (NE) Pacific (SO202-27-6; Gulf of Alaska), in combination with other proxy data (Neogloboquadrina pachydermasin d18O, biogenic opal, Ca and Fe intensities, IRD), to evaluate changes in surface water hydrography and productivity during Marine Isotope Stage (MIS) 3, characterized by millennial-scale temperature changes (Dansgaard-Oeschger (D-O) cycles) documented in Greenland ice cores.
Related to:
Maier, Edith (2014): Oxygen and silicon stable isotopes of diatom silica: Reconstructing changes in surface water hydrography and silicic acid utilization in the Late Pleistocene Subarctic Pacific [dissertation]. University of Bremen, Germany, 125 pp, urn:nbn:de:gbv:46-00103890-18
Project(s):
Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)
Coverage:
Latitude: 54.296200 * Longitude: -149.600200
Date/Time Start: 2009-08-02T08:30:00 * Date/Time End: 2009-08-02T08:30:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Maier, E (2014): (Table 1) Planktic (N. pachyderma sin) radiocarbon ages and calibrated ages of sediment core SO202-27-6 during MIS 3. https://doi.org/10.1594/PANGAEA.834407
  2. Maier, E (2014): (Table S2) Composition of pre-sonicated diatom samples of sediment core SO202-27-6 during MIS 3. https://doi.org/10.1594/PANGAEA.834410
  3. Maier, E (2014): (Table S2) Composition of final purified diatom samples of sediment core SO202-27-6 during MIS 3. https://doi.org/10.1594/PANGAEA.834411
  4. Maier, E (2014): (Table S3) Contamination of purified diatom samples with non-biogenic silicates estimated from SiO2 and Al2O3 percentages determined by EDS of sediment core SO202-27-6 during MIS 3. https://doi.org/10.1594/PANGAEA.834408
  5. Maier, E (2014): (Table S3) Contamination of purified diatom samples with non-biogenic silicates estimated from SiO2 and Al2O3 percentages determined by ICP-OES of sediment core SO202-27-6 during MIS 3. https://doi.org/10.1594/PANGAEA.834409
  6. Maier, E (2014): (Table S1) Oxygen and silicon stable isotopes of diatom silica of sediment core SO202-27-6 during MIS 3. https://doi.org/10.1594/PANGAEA.834412