alteration zone

• 蚀变晕,蚀变带

alteration zone的用法和样例：

例句

1. Each alteration zone distributed symmetricallytaking orebody for the zonal centre,and to the relations of gradual change and transition amongthe each zone.
   各蚀变带以矿体为中心对称分布，各带之间呈渐变过渡关系。
2. The mineralization and the alteration types are clearly distributed around the hornblende quartz diorite porphyry intrusion.
   其矿化围绕含眼球状石英斑晶的角闪石石英闪长玢岩及其环带状蚀变带分布。