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。
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.
研究表明 ，相山火山盆地火山活动划分为两个旋回 ，其就位受制于区域深断裂的走滑拉分作用。
The study shows that volcanic activity in Xiangshan volcanic basin may be divided into two cycles, and its emplacement is controlled by strike slip pull apart process originated from the deep regiona.
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