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。

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Difine that transitive stage of fault sag in fault basin is from the stable stage of fault subsidence to the initial stage of depression.

界定了断陷盆地断-拗转型演化阶段是指断陷稳定期至坳陷初始期的过渡阶段。

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In the subsidence period of the Cenozoic basin, the hydrocarbons generated secondarily by Palaeozoic source rocks migrated upward and passed through fault to Tertiary reservoir.

古生界烃源岩在新生代盆地沉降期间“二次生烃”，生成的天然气通过断裂向上运移至第三系储集。

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