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Sarnthein, Michael; Winn, Kyaw (2015): Age models and stable isotope ratios of SO12 and SO35 sediment cores. PANGAEA, (unpublished dataset), Supplement to: Sarnthein, M; Winn, K (1990): Reconstruction of low and middle latitude export productivity, 30000 years BP to present: Implications for global carbon reservoirs. In: Schlesinger, ME (ed), Climate-Ocean Interaction, Kluwer Academic Publishers, Dordrecht, the Netherlands, 319-342, hdl:10013/epic.46001.d001

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Based on organic carbon accumulation rates, nine time slices of oceanic export paleoproductivity (Pnew) are presented which depict the variability of Pnew on a global scale through the last 30,000 years and document that the basic distribution patterns did not change through glacial and interglacial times.
However, the glacial ocean shows an increased contrast of high- versus low-productivity zones. d13C values of near-surface-dwelling planktonic foraminifera Globigerinoides ruber suggest that the same contrast applies to the glacial nutrient inventories of the ambient surface waters, with a significant glacial transfer of PO4 from low- to high-productivity zones. In this way, glacial Pnew increased by a global average of about 2-4 Gt C/yr and led, via an enhanced CaCO3 dissolution and alkalinity in the deep ocean, to a significant extraction of CO2 from the surface water and the atrnosphere.
Related to:
Oppo, Delia W; Fairbanks, Richard G (1987): Variability in the deep and intermediate water circulation of the Atlantic Ocean during the past 25.000 years: Northern Hemisphere modulation of the Southern Ocean. Earth and Planetary Science Letters, 86(1), 1-15,
Sarnthein, Michael; Winn, Kyaw; Duplessy, Jean-Claude; Fontugne, Michel R (1988): Global variations of surface ocean productivity in low and mid latitudes: influence on CO2 reservoirs of the deep ocean and atmosphere during the last 21,000 years. Paleoceanography, 3(3), 361-399,
Shackleton, Nicholas J; Duplessy, Jean-Claude; Arnold, Maurice; Maurice, Pierre; Hall, Michael A; Cartlidge, Julie E (1988): Radiocarbon age of last glacial Pacific deep water. Nature, 335, 708-711,
Winn, Kyaw; Sarnthein, Michael; Erlenkeuser, Helmut (1991): d18O stratigraphy and chronology of Kiel sediment cores from the East Atlantic. Berichte-Reports, Geologisch-Paläontologisches Institut der Universität Kiel, 45, 99 pp,
Winn, Kyaw; Wiedicke, Michael; Erlenkeuser, Helmut (1990): Stable isotope stratigraphy, paleoproductivity and sedimentation rates in the South Lau and North Fiji Basins, Southwest Pacific. Geologisches Jahrbuch Reihe D, 92, 231-253, hdl:10013/epic.46000.d001
Median Latitude: -7.387500 * Median Longitude: -106.824500 * South-bound Latitude: -10.535000 * West-bound Longitude: -109.744000 * North-bound Latitude: -4.240000 * East-bound Longitude: -103.905000
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Datasets listed in this publication series

  1. Sarnthein, M; Winn, K (2012): Age model of equatorial Pacific sediment core SO12-229.
  2. Sarnthein, M; Winn, K (2012): Age model of equatorial Pacific sediment core SO12-98.