粘土鉱物による火山活動の解析(第25回記念粘土科学討論会特別講演集)

概要

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Abstract To obtain the variotis informations on the volcanic activity was attempted by examining the clay minerals in the ejecta which were erupted andlor accumlated from volcanos. (1) The styles, scale and future forecast of the activity of volcanos were judged by examining the species and components of clay minerals contained in the ejecta which were erupted from the active volcanos and also by considering their formation circumstances. (2) Precise chronology of volcanic activity in recent years was established by correlating precisely with the results of the identification of clay minerals in each volcanic ash bed and the_history of its recent activity. (3) Estimation of scale and degree of the activity of the submarine volcanos was attempted by examining the components in the yellow-colored sea water which was caused by the activity of submarine volcanos.
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