[Answer] The two major types of microscopic planktonic organisms that produce siliceous oozes are __________ and __________.

Answer: diatoms; radiolarians

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The two major types of microscopic planktonic organisms that produce siliceous oozes are __________ and __________. The two major types of microscopic planktonic organisms that produce siliceous oozes are _____ and _____. diatoms; radiolarians. How does siliceous ooze accumulate on the seafloor if silica-based residues are dissolved slowly at all depths? Silica tests accumulate faster than seawater can dissolve them. ... The two most common chemical compounds in biogenous sediment are calcium carbonate (produced by foraminifers and coccolithophores ) and silica (produced by diatoms and radiolarians ). List the two major chemical compounds that comprise most biogenous sediment as well as examples of the organisms that produce them. • Most commonly planktonic organisms - 100-500 million years ago • Organic mate...

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