Which one of the following are the most widespread inorganic pelagic deposits on the ocean floor?
Red clay
Radiolarian ooze
Volcanic dust
Calcareous ooze
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This question was previously asked in
UPSC CISF-AC-EXE – 2017
Pelagic deposits are deep-sea sediments. Red clay is composed of fine-grained detrital material, volcanic ash, and cosmic dust, accumulating slowly in areas away from continental margins and where biogenic sedimentation is low, typically in the deepest ocean basins.