High Pressure Solubility of Calcium Carbonate in Seawater.
The saturation concentration of calcium carbonate, equilibrated with aragonitic oolites, is about 2.7 times larger after exposure to 1000 atmospheres than it is when saturation is achieved at 1 atmosphere. This sugests that deep ocean waters may be undersaturated with calcium carbonate, in which case the alkalinity of the oceans would increase as sinking calcareous organisms dissolve.
Pytkowicz
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