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1·The thrid part are tuff, ferruginous dolomite, crystal tuff and volcanic breccia.

第三段以凝灰岩、铁质白云岩、晶屑凝灰岩、火山角砾岩为主。

2·The pyroclastic rocks which transit to lava mainly have breccia lava and tuff lava etc.

向熔岩过渡的火山碎屑岩主要为角砾熔岩和凝灰熔岩等。