| 单词 | trachyte porphyry |
| 释义 | > as lemmastrachyte porphyry attributive, as trachyte rock, trachyte porphyry; trachyte tuff n. a tuff having the composition and structure of trachyte. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > trachyte > varieties of rhyolite1861 nevadite1868 propylite1868 trachyte tuff1885 ciminite1896 grorudite1896 hedrumite1896 kenyte1900 mugearite1904 1872 C. King Mountaineering in Sierra Nevada ix. 188 Rounded domes of trachyte rock. 1877 Tylor in Nature 5 July 191/1 In a still larger chulpa [i.e. Peruvian burial-tower] there are hewn trachyte blocks as large as twelve feet long [etc.]. 1885 A. Geikie Text-bk. Geol. (ed. 2) ii. ii. vii. 166 Thus we have felsite-tuffs, trachyte-tuffs, basalt-tuffs, pumice-tuffs, porphyrite-tuffs, etc. < as lemmas |
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