Sentences with phrase «from radiolarians»
They compared isotope measurements on the silica skeletons of diatoms, which store environmental signals from the ocean's surface, with isotope signals from radiolarians, which live in deeper water layers.
https://www.sciencedaily.com/ Not exact matches
The researchers were after genetic material from two related groups of marine organisms, the foraminifera and the radiolarians.
At any rate, when «normal» rain containing natural carbonic acid falls upon silicon - containing sedimentary rocks formed over eons from the shells of tiny marine creatures — radiolarians, diatoms and some sponges — this «siliceous» rock combines with the carbonic acid to form ions of bicarbonate.