acid and basic rocks 酸性岩和基性岩
ultra-basic rocks 超基性岩
Type Basic Rocks 型基性
medium-basic rocks 中酸性岩
intermediate-basic rocks 中基性火山岩
post-orogenic basic rocks 后造山基性岩
Montmorillonite forms when basic rocks such as volcanic ash in Marine basins are altered.
海相盆地中的基性岩石(如火山灰)经蚀变后形成蒙脱石。
The development of the fractures and the distribution of basic rocks of Variscan age are also mentioned.
指出了该区断裂发育及华力西期基性岩的分布情况。
There are three magmatic zones of clusters of basic and ultrabasic rocks from north to south in this area.
本区基性、超基性岩岩脉群的出露，从北向南可归纳为三个岩桨岩带。
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