Sericitic alteration
Sericitic alteration or sericitization is a process of mineral alteration caused by hydrothermal fluids invading permeable country rock. Plagioclase feldspar within the rock is converted to sericite, which typically consists of fine-grained white mica and related minerals. Sericitic alteration occurs within the phyllic alteration zone.
Category:Geochemical processes
Category:Phyllosilicates