syenites
基本解释
- 正长岩
英汉例句
- Taxkorgan complex,mainly composed of alkaline syenites and subalkaline granitoids,is the largest Cenozoic alkaline complex in Pamirs region.
新疆塔什库尔干碱性杂岩体主要由苦子干碱性正长岩体和卡日巴生碱性花岗岩体组成,是帕米尔地区最大的新生代碱性杂岩体。 - There exist such types of rocks as syenite, quartz syenite, aegirine-augite syenite, nepheline syenites, monzonite, quartz monzonites, alkaline gabbro, alkaline-feldspar granites and alkaline granite.
本文总结了它们的空间分布、形成时代、产状、岩石组合和岩石化学特徵； - alkali syenit
碱性正长岩