单词 | quartzofeldspathic |
释义 | quartzofeldspathicadj. Geology. Containing a high proportion of quartz and feldspar. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > mineral or chemical composition > [adjective] > containing specific mineral siliceous1656 auriferous1744 siliciferous1794 silicited1794 talcose1794 aluminiferous1804 silicated1806 venigenous1817 stanniferous1823 alumiferous1826 quartziferous1831 quartzofeldspathic1839 stannified1855 tinnified1855 acidic1876 lime-silicate1888 peralkalic1902 potassic1902 sodic1902 sodipotassic1902 felsic1912 peralkaline1913 peraluminous1927 1839 H. T. De la Beche Rep. Geol. Cornwall vi. 175 It has chiefly a quartzo-felspathic base with crystals of felspar. 1871 Amer. Naturalist 5 455 The quartzo-feldspathic rocks of this series are to a considerable extent represented by a fine-grained petrosilex or eurite. 1952 Geol. Mag. 89 1 The term [sc. pygmatic] was later restricted..to those tortuous quartzo-felspathic veins, which occur in areas of granitization. 1999 Limnol. & Oceanogr. 44 1092/2 The upper Kye Burn has a more stable geology dominated by quartzofeldspathic and pelitic schists. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < adj.1839 |
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