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。
Mainly is basalt and tuff, secondly become for the alteration basalt and andesite.
主要为玄武岩和凝灰岩，其次为蚀变玄武岩和安山岩。
There were basalt almond-shape basalt and tuff there.
有变橄榄玄武岩、变杏仁状玄武岩、变玄武岩和凝灰岩。
The study suggests that the types of volcanic rock of GuanTao formation in this area are chiefly tuff and basalt, and different types have different log responses.
研究表明，馆陶组火山岩主要类型为玄武岩和凝灰岩，不同火山岩类型间具有不同的测井响应特征；
The study suggests that the types of volcanic rock of GuanTao formation in this area are chiefly tuff and basalt, and different types have different log responses.
研究表明，馆陶组火山岩主要类型为玄武岩和凝灰岩，不同火山岩类型间具有不同的测井响应特征；
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