地球上散布着100多个与外部隔绝的小块的火山活动区。
Scattered around the globe are more than 100 small regions of isolated volcanic activity.
大西洋火山活动区，与大西洋和非洲的裂开，以及地中海带的活动有关。
Atlantic Area: most volcanism are correlated with rift of Atlantic and Africa, and with the active dynamic process in the Mediterranean.
腾冲不但是现代火山活动区，也是地热异常区，这里温泉、热泉及喷气孔到处可见。
Tengchong is a famous active area of the modern volcano, where the hydrothermal activity is very violent.
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