英语词汇“alkalic”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

alkalic

释义

alˈkalic, a.
[f. alkali + -ic.]
†1. = Alkaline. Chem. Obs.
1733Phil. Trans. XXXVIII. 67 Neither..Acid, nor Alcalick, but insipid like Talck.Ibid. 68 Neither is it any ways Alcalick.
2. Petrol. Of a rock: containing more alkali metals than the average for the group it belongs to; having sufficient alkali metals to determine the mineral content; spec. containing more sodium and potassium than is required to form feldspar with the available aluminium and silica. † Of a mineral: rich in alkali metals.
1902Jrnl. Geol. X. 569 The two rocks having almost identical chemical compositions are composed in the first case of somewhat alkalic, aluminous hornblende.1931Ibid. XXXIX. 54 Some rock series cannot be properly classified either as alkalic or as sub-alkalic.1973Nature 9 Feb. 375/2 Thus the alkalic provinces may be related to a greater depth of fusion for these rocks, by contrast with the tholeiitic composition of the ridge volcanics.

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