Geo-Marine Letters

, Volume 11, Issue 2, pp 90–95 | Cite as

Late quaternary organic carbon cycles and paleoproductivity in the Labrador Sea

  • Ruediger Stein
  • Rainer Stax
Article

Abstract

Accumulation rates of (marine) organic carbon and estimates of paleoproductivity from organic carbon data indicate distinct late Quaternary glacial/interglacial cycles at Ocean Drilling Program (ODP) Site 646. During the last 240,000 years, surface-water productivity was significantly higher in the northern Labrador Sea during interglacial than during glacial times (70 to 170 gC/m2/yr vs. 30 to 70 gC/m2/yr). The reduced glacial productivity is probably caused by a closed sea-ice cover dominating the northern Labrador Sea during glacial intervals.

Keywords

Total Organic Carbon Ocean Drill Program Mass Accumulation Rate Ocean Drill Program Site Linear Sedimentation Rate 

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Copyright information

© Springer-Verlag New York Inc. 1991

Authors and Affiliations

  • Ruediger Stein
    • 1
  • Rainer Stax
    • 1
  1. 1.Alfred-Wegener-Institute for Polar and Marine ResearchBremerhavenGermany

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