A pyroclastic deposit formed of sand, cinders, etc., cemented together; spec. a light, porous, grey tuff containing fragments of leucite, etc…
| 单词 | θ5744 |
| 释义 | the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > volcanic tuff > varieties of (3) peperino1745 A pyroclastic deposit formed of sand, cinders, etc., cemented together; spec. a light, porous, grey tuff containing fragments of leucite, etc… piperine1846 Geology. = peperino, n. Obsolete. rare. palagonite tuff1863 a basaltic tuff containing angular fragments of basaltic glass that has altered to palagonite. |
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