coarse ash tuff 粗粒凝灰岩
ash-tuff [岩] 灰质凝灰岩
melaphyre-ash-tuff 暗玢灰质凝灰岩
basalt-ash tuff 玄武灰质凝灰岩
volcanic ash tuff 火山尘凝灰岩
coarse e ash tuff 粗粒凝灰岩
ash flow tuff 火山灰流凝灰岩
Tuff cones are formed when magma from an inland volcano reaches the sea, sputtering layer upon layer of basalt ash that eventually rises into this monument of nature.
凝灰岩锥形成时，岩浆从火山内陆到达大海，溅射层层叠叠的玄武岩火山灰，最终上升到这个纪念碑的自然状态。
The two early carboniferous fragments are composed of basalt and ash - black, fuchsia radiolaria silicalite, siliceous mudstone, tuff.
早石炭世两个断片由玄武岩和灰白色、紫红色放射虫硅质岩、硅质泥岩、凝灰岩组成。
The two early Carboniferous fragments are composed of Basalt and ash-black, fuchsia radiolaria silicalite, siliceous mudstone, tuff.
早石炭世两个断片由玄武岩和灰白色、紫红色放射虫硅质岩、硅质泥岩、凝灰岩组成。
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