alkaline igneous rocks

常見例句

The author points out that only the igneous rocks fit-ting into one of the following conditions can be defined as the alkaline rocks: (1) containing feldspathoid or alkaline melaminerals;
筆者認為符合下列條件之一的火成巖才能定為堿性巖：（1）含似長石或堿性暗色礦物；
Based on several typical localities of fenites in the world, this paper systematically reviews the petrological characteristics of fenites associated with alkaline igneous rocks and carbonatites.
本文以幾個典型實例，綜合評述了與堿性巖和碳酸巖有關(guān)的堿質(zhì)交代蝕變巖——霓長巖的巖石學(xué)特征。