Science / Geology / 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.
Science / Geology / Radiolarian Ooze: A deep-sea pelagic sediment that contains at least 30% siliceous radiolarian remains. MORE
Science / Geology / Radiolarite: The lithified sedimentary rock formed from radiolarian ooze. MORE
Science / Geology / 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. MORE