Related Words

Radiolaria: Protistan phylum, whose members are planktonic and secrete an often elaborate siliceous test

Radiolarian Ooze: A deep-sea pelagic sediment that contains at least 30% siliceous radiolarian remains.

Radiolarian: A group of one-celled marine animals with a siliceous skeleton that occupies shallow portions of the water column. Radiolarians have a range from Cambrian to present.

Radiolarite: The lithified sedimentary rock formed from radiolarian ooze.

Pelagic Sediment: A ocean sediment that accumulates far enough from land that detrital materials are a minor component. These sediments are largely composed of the tiny shell debris of radiolarians and foraminifera.