Quote:
Originally Posted by Ivan Viehoff
So that would tend to suggest that if there is increased concentration of CO2 in the ocean, whether in the form of CO2(aq), HCO3-(aq), CO32-(aq) or H2CO3(aq), or whatever, that would tend to promote deposition of carbonate minerals, not promote the further dissolution of carbonates so as further to increase the dissolved CO2, regardless of the presence of increased concentration of hydrogen ions.
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An interesting question, and I don't know the answer. I wonder if it is a short-term versus long-term difference. In the short term, organisms that currently make carbonate shells can't adjust to the changing pH, but eventually ones that can evolve, and then procede to tie up more of the carbonate and make carbonate minerals.