Where are the expert geologists ? Are the oceans acidic neutral or alkaline . The question is to understand CO2 absorption by the sea and by mointains.
I agree with you. To my understanding , limestone which is abundant, marble, Ingeneus rock, sand stone .
According to the article by Origin, the oceans are presently alkaline, but being acidified by the increase in carbonic acid. pH of 7 is 'neutral' (pure water); greater than 7 is alkaline, less than 7 is acidic. https://en.wikipedia.org/wiki/PH
Your site is great It shows the Ph is higher by the surface 8.1 and lower as the depth increases , that means the ocean is able to absorb CO2, the other thing is as temperature in the surface increase, the absorption will decrease. Walter I agree with you, The ocean can absorb some more CO2 O posted that before but for some reason the post did not appear. but anyway I am glad for your post and the link of Origin