Sericitic alteration

Sericitic alteration is a process of mineral alteration caused by hydrothermal fluids invading permeable country rock. Plagioclase feldspar within the rock is converted to the mineral sericite, which is a fine-grained white mica. Sericitic alteration occurs within the phyllic alteration zone.

This article is issued from Wikipedia - version of the 10/31/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.