单词 | trachytic |
释义 | trachyticadj. Consisting, or of the nature, of trachyte; containing, or abounding in, trachyte. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > volcanic > trachyte trachytic1827 trachytoid1885 1827 Edinb. Rev. 45 320 Those hills consist of a trachytic formation. 1830 C. Lyell Princ. Geol. I. 396 Where it [felspar] is in great excess lavas are called trachytic; where augite (or pyroxene) predominates, they are called basaltic. 1845 J. Phillips & C. G. B. Daubeny Geol. in Encycl. Metrop. VI. 767/1 Trachytic porphyry..occurs on the Western shore of the Island of Arran. 1869 J. Phillips Vesuvius viii. 211 Slopes of crumbling tufaceous, pumiceous and trachytic rocks. This entry has not yet been fully updated (first published 1913; most recently modified version published online March 2022). < adj.1827 |
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