volcanic rock of Yingcheng Formation 营城组火山岩
Yinzhouba Formation volcanic rock 银珠坝组火山岩
E'erlongba Formation volcanic rock 鄂尔陇巴组火山岩
Volcanic rock develops mainly in deep formation, the distribution shows that volcanic rock has the characteristics of multi-stages and multi-times and multi-cycles.
纵向上火山岩主要发育在深部地层，火山岩的纵向分布反映了火山活动具有多期次、多旋回、间歇性强的特点。
Based on the analysis of element geochemistry, the volcanic rock series have same magma source and the formation of the rocks is mainly in the form of partial melting.
元素地球化学分析表明火山岩系具有同一岩浆源区，其形成以部分熔融方式为主。
Formation of volcanic rock reservoirs is divided into 2 stages, the initial diagenesis stage and the later diagenesis stage.
将火山岩储层形成划分为2个阶段：初始成岩作用阶段和成岩后生作用阶段。
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