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。
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。
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。
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