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Re: Great size and oxygen content of the atmosphere
>During a Historical Geology class the professor stated during the
>Cretaceous, cocoliths (calcium carbonate critters) were so numerous that
>the oxygen to carbon dioxide ratios became inbalanced, producing a
>than normal oxygen levels.
Wouldn't his indicate the opposite? Greater sedementation of carbonates would
indicate great soluble carbon dioxide in sea water - therefore higher
concetrations in the atmosphere. Just a passing thought.