【摘要】 火山气体喷发量的一种计算方法———以汉诺坝浮岩为例夏成朱永峰王海华鲍景新（北京大学地质系，北京１００８７１）关键词浮岩二相分流气体喷发量以火山方式将地幔气体排出是地球内部向地表输出的一条重要途径。火山喷发过程中流体（岩浆及地幔气体）带出大量动能，喷出...更多还原

【Abstract】 A method for calculation of amounts of volcano eruptive gases was established.By using the method the amounts of volcanic gases was calculated when Hannuoba pumice formed.The results showed that during the periods of Hannuoba volcanic activity it poured about 28 600 t volcanic gases at rate of 67.82 kg/second,among which there is 4 500 t SO 2.This method can accurately get the volcanic gas amounts which help us to know the effects of these gases on the environments and the effects of Earth’s degassing on the evolution of atmosphere更多还原