syenitic

syenitic

1. A-type quartz syenitic porphyritic dyke

A型石英正长斑岩

2. In this paper, the testing data of friction factor between syenitic blocks under static and dynamic conditions are presented.Dynamic tes...

两种条件下的动摩擦系数的变化规律也有明显区别。

3. Abstract ：Orthogneisses in the Wulian area are mainly syenogranitic gneiss and less commonly quartz syenitic gneiss, showing a mildly alkaline trend.

提要： 五莲杂岩中的正片麻岩主要为正长花岗质片麻岩，少数石英正长质片麻岩，具有适度碱性的演化趋势。

4. alkali syenit

碱性正长岩