Calcareous sediments of the North Atlantic occur at deeper depths than calcareous sediments in the North Pacific.

Name: Calcareous sediments of the North Atlantic occur at deeper depths than calcareous sediments in the North Pacific.
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This is true because the North Atlantic has more dissolved CO2 which leads to a lower pH and more acidic water. This acidic water dissolves the calcareous sediments in the North Atlantic, preventing them from settling at shallower depths like they do in the North Pacific.

Calcareous Sediments of the North Atlantic Occur at Deeper Depths