Vertical oceanic nutrient fractionation and glacial/interglacial CO2 cycles

  title={Vertical oceanic nutrient fractionation and glacial/interglacial CO2 cycles},
  author={Edward A Boyle},
Ice-core studies have established that atmospheric carbon dioxide is about 80 parts per million by volume (p.p.m.v.) lower during cold glacial climates than it is during warm interglacial times1–8. A number of models have been offered for this phenomenon9–12. These models are consistent with observation of an enhanced carbon isotope contrast between surface and deep waters, but they also predict dissolved oxygen depletions which are inconsistent with the widespread occurrence of glacial-age… CONTINUE READING

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