North Atlantic thermohaline circulation during the past 20,000 years linked to high-latitude surface temperature

  title={North Atlantic thermohaline circulation during the past 20,000 years linked to high-latitude surface temperature},
  author={Edward A. Boyle and Lloyd D. Keigwin},
During a surface cooling event 10,000 to 12,000 years ago, higher Cd/Ca and lower 13C/12C ratios are observed in benthic foraminifera shells from rapidly accumulating western North Atlantic sediments. Data from sediment cores show that marked nutrient depletion of intermediate waters occurs in association with reduced glacial North Atlantic Deep Water flux. It is proposed that cold high-latitude sea surface temperatures enhance intermediate-water formation at the expense of deep-water formation… 
Evidence for two-step deglaciation and its impact on North Atlantic deep-water circulation
Oxygen and carbon isotope records from benthic and planktonic foraminifera are presented for the past 35,000 years in the northeastern Atlantic. The results support the idea that the last
Abrupt changes in Antarctic Intermediate Water circulation over the past 25,000 years
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Radiocarbon Variability in the Western North Atlantic During the Last Deglaciation
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Sudden changes in North Atlantic circulation during the last deglaciation
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Evidence from Southern Ocean sediments for the effect of North Atlantic deep-water flux on climate
The Southern Ocean is perhaps the only region where fluctuations in the global influence of North Atlantic Deep Water (NADW) can be monitored unambiguously in single deep-sea cores. A carbon isotope
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High-resolution paleogeochemical data from the North Atlantic Ocean indicate that in the interval 15,000 to 10,000 14C years before present (B.P.) North Atlantic Deep Water (NADW) production was
Freshwater Forcing of Abrupt Climate Change During the Last Glaciation
It is found that periods of increased freshwater flow to the North Atlantic occurred at the same time as reductions in the formation of North Atlantic Deep Water, thus providing a mechanism for observed climate variability that may be generally characteristic of times of intermediate global ice volume.
Oxygen isotope records and salinity changes in the northeastern Atlantic ocean during the last 18,000 years
A comparison of the deglaciation δ18O record of northeastern Atlantic core SU 81-18 with that calculated by adding the δ18O changes due to sea surface temperature and ice volume variations shows that
A 17,000-year glacio-eustatic sea level record: influence of glacial melting rates on the Younger Dryas event and deep-ocean circulation
Coral reefs drilled offshore of Barbados provide the first continuous and detailed record of sea level change during the last deglaciation. The sea level was 121 ± 5 metres below present level during