Search for: 'radiolarian ooze' in Oxford Reference ». All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single entry from a reference work in OR for personal use for details see Privacy Policy and Legal Notice.
Oxford Reference. Publications Pages Publications Pages. Recently viewed 0 Save Search. Your current browser may not support copying via this button. Subscriber sign in You could not be signed in, please check and try again. Username Please enter your Username. Password Please enter your Password. Forgot password? Don't have an account? Sign in via your Institution.
Diatoms are phytoplankton single-celled microscopic marine plants. A radiolarian is a single-celled aquatic animal zooplankton that has a spherical, amoeba-like body with a rigid spiny skeleton of silica.
There are hundreds of known species of radiolarians See a list on radiolaria. Figure 6. Upon death, their tests can accumulate on the seafloor and form siliceous marine sediments known as radiolarian ooze a form of siliceous ooze.
Radiolarians first appear in the geologic record in early Cambrian time and have experienced several periods of proliferation and extinctions as recorded in the geologic record. Today, radiolarians are more common in equatorial regions. Siliceous oozes Siliceous oozes are sediments dominantly composed dominantly of SiO 2 silica.
0コメント