variolitization

例句：

1. 2.
   地质学
2. 3.
   地质学
3. 1. Variolitization is a process that occurs during the metamorphic transformation of rocks.
   变生作用是岩石在变质过程中发生的一个过程。
4. 2.The mineralogist observed the variolitization of the minerals in the sample.
   矿物学家观察到样本中矿物的变生作用。
5. 3.Metasomatism is a type of variolitization that involves the introduction of foreign materials into rocks.
   变质作用是一种变生作用，涉及将外来物质引入岩石中。