The formation is the eroded remains of a volcanic tower known as a tuff cone.
形成是侵蚀遗迹是一个火山塔称为凝灰岩锥。
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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