| 单词 |
peralkalic |
| 释义 |
peralkalic, a. Petrol.|pɜːrˈælkəlɪk| [f. per-1 4 + alkalic a.] = next.
1902W. Cross et al. in Jrnl. Geol. X. 592 The divisions in classes I, II, and III are fivefold: Rang 1: K2O′ + Na2O′ / CaO′ > 7/1, peralkalic. 1976Nature 10 June 482/1 The Saint Francois Mountains form a distinctive unmetamorphosed igneous complex comprising chiefly alkalic to peralkalic rhyolite and granite. |

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