dacite

The first rock is mainly andesite clinkering agglomerate, andesite breccia, dacite breccia, rhyolite breccia and rhyolite clinkering tuff.

正常山碎亚类石类型主要为山熔结集块,山、英及流纹山角砾以及流纹熔结凝。

Volcanicity was violent during the Early Carboniferous in Santanghu region.The volcanic rocks consist of basalts,andesites and dacite liparite,with andesites playing the main part.

三塘湖地区早石炭世山活动强烈，发育以山类为主的玄武、山、英流纹的石组合。