How Do Calcareous Oozes Form

question 47

Multiple Choice

How do calcareous oozes form?

• A) The particles settle out from calcite- rich turbidity currents at depths greater than 4,500 metres.
• B) The particles are precipitated in the water column below the depth of sunlight penetration and then sink to the bottom.
• C) The particles are precipitated by deep- ocean, bottom- dwelling, carbon- fixing bacteria.
• D) The particles are biogenically or chemically precipitated in warm, surface waters and sink to the bottom.

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