propylitization meaning in Hindi

In the working area weak silicification , potassium alteration , pyritization , propylitization , argillation etc . are developed
The alteration of wall rock is mainly of propylitization , silicification , carbonatization , argillization and beresitization . the characteristics of alteration show the zoning and overlapping on the space . from the inner to outside of the ore vein zoning is : silicification inner core - argillization - beresitization - propylitization