Question

deep sea sediments which are mainly consist of calcareous foraminiferal ooze above calcium carbonate compensation depth (ccd) are very significant to assess the records of past tectonic and oceanographic changes.

Answer 1

Calcite compensation depth (CCD), in oceanography, the depth at which the rate of carbonate accumulation equals the rate of carbonate dissolution. The input of carbonate to the ocean is through rivers and deep-sea hydrothermal vents. The CCD intersects the flanks of the world’s oceanic ridges, and as a result these are mostly blanketed by carbonate oozes, a biogenic oozemade up of skeletal debris. Carbonate oozes cover about half of the world’s seafloor and are present chiefly above a depth of 4,500 


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