岩石、矿物受到热液作用，产生新的物理化学条件，使原岩的结构、构造以及成分相应地发生改变生成新的矿物组合的过程。
剪切带中流体与金矿中交代蚀变作用密切相关。
Fluid in shear zones is closely related to alteration in gold deposits.
在蚀变作用过程中，PGE的行为主要受其溶解度的控制。
The PGE behaviour during alteration is controlled by the dissolubility.
文中对它的地质产状形态、岩石学、岩石化学和交代蚀变作用等方面作了阐述。
This paper has described geologic occurrence and shape, petrology, petrochemistry and replace-alteration processes of the rock bodies.
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