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Kienast, Markus (2000): Nitrogen isotopic composition in South China Sea sediments [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.857464, Supplement to: Kienast, M (2000): Unchanged nitrogen isotopic composition of organic matter in the South China Sea during the last climatic cycle: Global implications. Paleoceanography, 15(2), 244-253, https://doi.org/10.1029/1999PA000407

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Published: 2000 (exact date unknown) • DOI registered: 2016-02-23

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Abstract:
The d15N of surface and down-core sediments spanning the last 20-200 kyr from the entire South China Sea (SCS) ranges only from ~3.0 to ~6.5 per mil, with no correlation with discernible paleoclimatic/oceanographic changes. Detailed profiles of the uppermost sediment column, including fluff samples, indicate a minor diagenetic overprint of 0.3-1.2 per mil at the sediment-water interface. The absence of any correlation with reconstructed (glacial-interglacial) changes in primary production, terrigenous input, and/or sea level related basin configuration is attributed to a complete consumption of nitrate during primary production in this marginal basin during at least the last 140,000 years. This, in turn, implies that the d15N of the nitrate used during primary production remained approximately constant during the last climatic cycle. The proposed scenario infers an unchanged nitrogen isotopic composition of the western Pacific subsurface nitrate between glacial and interglacial stages as well as during terminations and thus constrains proposed changes in the oceanic N inventory.
Related to:
Reichart, Gert-Jan; Lourens, Lucas Joost; Zachariasse, Willem-Jan (1998): NOAA/WDS Paleoclimatology - Northern Arabian Sea Oxygen Minimum Zone(OMZ) during the last 225,000 years. NOAA National Centers for Environmental Information, https://doi.org/10.25921/E1VP-TG73
Coverage:
Median Latitude: 11.561301 * Median Longitude: 113.652365 * South-bound Latitude: 2.307550 * West-bound Longitude: 107.422100 * North-bound Latitude: 21.515000 * East-bound Longitude: 119.751667
Date/Time Start: 1994-04-16T00:00:00 * Date/Time End: 1997-01-08T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9 datasets

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Datasets listed in this publication series

  1. Kienast, M (2000): Nitrogen isotopic composition of sediment core GIK17924-3. https://doi.org/10.1594/PANGAEA.857453
  2. Kienast, M (2000): Nitrogen isotopic composition of sediment core GIK17940-2. https://doi.org/10.1594/PANGAEA.857454
  3. Kienast, M (2000): Nitrogen isotopic composition of sediment core GIK17954-2. https://doi.org/10.1594/PANGAEA.857455
  4. Kienast, M (2000): Nitrogen isotopic composition of sediment core GIK17961-2. https://doi.org/10.1594/PANGAEA.857456
  5. Kienast, M (2000): Nitrogen isotopic composition of sediment core GIK17964-2. https://doi.org/10.1594/PANGAEA.857457
  6. Kienast, M (2000): Nitrogen isotopic composition of sediment core GIK17964-3. https://doi.org/10.1594/PANGAEA.857458
  7. Kienast, M (2000): Nitrogen isotopic composition of sediment core GIK18284-3. https://doi.org/10.1594/PANGAEA.857459
  8. Kienast, M (2000): Nitrogen isotopic composition of short sediment cores. https://doi.org/10.1594/PANGAEA.857460
  9. Kienast, M (2000): Nitrogen isotopic composition of surface sediments. https://doi.org/10.1594/PANGAEA.857463