| 单词 | radiolarian earth |
| 释义 | > as lemmasradiolarian earth radiolarian earth n. Geology unconsolidated siliceous rock formed largely from the tests of radiolarians. ΘΚΠ the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [noun] > organic soil > radiolarian earth radiolarian earth1889 1889 J. B. Harrison & A. J. J. Browne in Nature 14 Feb. 367/2 (heading) Origin of the radiolarian earth of Barbados. 1913 F. H. Hatch & R. H. Rastall Petrol. Sedimentary Rocks i. iv. 143 One of the most notable instances of the abundant presence of this division of the Protozoa is afforded by the so-called Radiolarian earths of Barbados. 1985 Sedimentary Geol. 42 219 Barbados consists of a basal complex structurally overlain by nappes composed mostly of calcareous radiolarian earth. < as lemmas |
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