andesite

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

正常火碎屑岩亚类岩石类型主要结集块岩,、英及流纹火角砾岩以及流纹结凝灰岩。

The extrusive rock unit includes basalt, andesite, boninite and albitite as well as breccia and tuff.

喷出岩单元不仅仅由玄武岩组成，还包括岩、玻岩、钠长岩以及角砾岩、凝灰岩等。

Perlite, obsidian and pitchstone are volcanic glass having the same compositions commonly with rhyolite as well as andesite and basalt.

珍珠岩、黑耀岩和松脂岩等玻璃岩以酸性主，中基性者也常见。

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火活动强烈，发育以岩类主的玄武岩、岩、英流纹岩的岩石组合。