| 释义 |
trachytic, a.|trəˈkɪtɪk|
[f. prec. + -ic: cf. F. trachytique.]
Consisting, or of the nature, of trachyte; containing, or abounding in, trachyte.
1827Edin. Rev. XLV. 320 Those hills consist of a trachytic formation. 1830Lyell Princ. Geol. I. 396 Where it [felspar] is in great excess lavas are called trachytic; where augite (or pyroxene) predominates, they are called basaltic. 1833–4J. Phillips in Encycl. Metrop. (1845) VI. 767/1 Trachytic porphyry..occurs on the Western shore of the Island of Arran. 1869Phillips Vesuv. viii. 211 Slopes of crumbling tufaceous, pumiceous and trachytic rocks. |