It's built on volcanic rock and ash.
该城建立在火成岩与火山灰上。
The volcanic rock series has same magma source.
基性火山岩系具有同一岩浆源区。
Volcanic rock is one of the reservoir rocks, difficult to discover.
火山岩是一种不多见的储集岩类型。
In fact, the volcanic rock zone is a fault subsidence basin zone in tectonic sense.
就构造意义而言，火山带实质上是断陷盆地带。
Ciweigou gold deposit is one of the typical volcanic rock gold deposits in the country.
刺猬沟金矿，是我国典型的火山岩型金矿之一。
Ciweigou gold deposit is one of the typical volcanic rock gold deposits in the country.
刺猬沟金矿，是我国典型的火山岩型金矿之一。
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