SEARCH Articles Figures Tables Biogenic Elements in China Marginal Sea Sediments Biogenic Silica in the Sediments Biogenic silica in marine sediments Biogenics Biogenous Biogenous sediments Biogenous sediments classification Biogenous sediments definition Biogenous sediments oozes Distribution of Biogenic Silica in Sediments Sediments with Hydrates Typically Have Low Contents of Biogenic Methane