地球科学

• 透长石

  The mineral sequence of crystallization from early to late is ilmenite. hedenbergite. fayalite. sodian sanidine, quartz and arfvedsonite.3. The alkaline rhyolitic lava at Late Qixiangzhan Stage belongs to comendites of alkaline series, and its compositon is similar to the Tianwenfeng comenditic pumice.

  矿物由早到晚的结晶顺序依次是：钛铁矿、钙铁辉石、铁橄榄石、钠透长石、石英和钠铁闪石；3．气象站期晚期碱流质熔岩是碱性系列的钠闪碱流岩，与天文峰期碱流质浮岩成分相似。

• 正长石