This area consists of cataclastic andesitic tuff, altered volcanic rock, slightly altered and cataclastic anisomerous sandstone, slump breccia, and silt bearing cataclastic tuffaceous shale.

• 其主要由一套碎裂安山凝灰岩、蚀变火山岩、轻微蚀变碎裂不等粒砂岩、坍塌角砾岩、含粉砂碎裂凝灰质泥岩等组成。