Caldera volcanic cycle 破火山旋回
volcanic cycle or stage 火山活动旋回或期
volcanic eruption cycle 火山喷发旋回
cycle of volcanic 火成循环
volcanic c cycle 火山轮回
volcanic sediment cycle 火山沉积旋回
volcanic activity cycle 火山活动旋回
Volcanic rocks compose with clastic rocks together, form sedimentary-eruption rhythm or cycle.
火山岩与碎屑岩共生，构成沉积—喷发韵律或沉积—喷发旋回。
Volcanogenic—sedimentary ore deposits are situated at the top of volcanic eruption cycle;
火山沉积型矿床就位于火山喷发旋回顶部；
According to general rule, volcano eruption function from strong to weak, finally arrives the deposition, composes a volcanic eruption - depositional cycle.
根据一般规律，火山的喷发作用从强到弱，最后到沉积，组成一个火山喷发—沉积旋回。
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