化学的方法による噴火予知への提言

概要

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As an approach to the prediction of volcanic eruption by chemical methods, several proposals are made : 1) Helicopterborne γ-ray spectrometry in order to determine the observation spot on a volcano, 2) Exploitation of a probe specified to an individual gas species contained in volcanic gases, 3) Laboratory experiment as the basis for understanding surface manifestations such as the increase in HCl/SO_2 ratio in volcanic gases prior to the eruptive activity, 4) Experimental and theoretical studies for the possibility of vesiculation due to magma mixing, and 5) Estimation of the magma depth based on the ^<220>Rn/^<222>Rn ratio in fumarolic gases. In order to accomplish the prediction of eruption, it is urged that the progress in volcanology itself is the most important. In-situ continuous observation, laboratory experiment, and theoretical consideration should be combined with harmony.
特定非営利活動法人日本火山学会の論文
1985-10-01