In volcanoes that undergo central eruptions, it is believed that the magma generated deep underground first accumulates 2 to 4 km underground, where it differentiates, and then erupts repeatedly whenever the gas pressure increases. This accumulation is called a magma chamber. Source : Heibonsha Encyclopedia About MyPedia Information |
中心噴火をする火山では,地下深所で発生したマグマは,地下2〜4kmのところに一度たまり,ここで分化し,ガスの圧力が高まるごとに噴火を繰り返すと考えられている。このたまりをマグマ溜りという。
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