Rapid stepwise onset of Antarctic glaciation and deeper calcite compensation in the Pacific Ocean

  title={Rapid stepwise onset of Antarctic glaciation and deeper calcite compensation in the Pacific Ocean},
  author={Helen K. Coxall and Paul A. Wilson and Heiko P{\"a}like and Caroline H. Lear and Jan Backman},
The ocean depth at which the rate of calcium carbonate input from surface waters equals the rate of dissolution is termed the calcite compensation depth. At present, this depth is ∼4,500 m, with some variation between and within ocean basins. The calcite compensation depth is linked to ocean acidity, which is in turn linked to atmospheric carbon dioxide concentrations and hence global climate. Geological records of changes in the calcite compensation depth show a prominent deepening of more… 
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