"本邦の火山について(活動の波及性豫察)"附言

概要

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In his previous paper, ("Studies on the volcanoes in Japan - The spreading of the activity" in this Journal, 1948) the writer pointed out that the volcanic activity in Japan spread towards N from S, but in another paper (Jour., Jap., Assoc, Petrol., Min., & Eco., Geol., XXXII, 1944) he had stated that the most volcanoes in Japan had a tendency that the centre of activity (eruption) migrated from W〜N to E〜S., It is apparently incompatible, but these two facts may be interpretated without self-contradiction as follows: 1) The activity in a period of volcanic action of Japan spreads towards N from the initial point of the action., 2) The point of action in a later period migrates towards E from that in the earlier period., 3) Sequently, at a volcano with an active line (fissure) in the E-W direction the centre of eruption migrates towards E from W through the history of the volcanic action, and at a volcano with an active line in the N〜W - S〜E direction it migrates toward S〜E.,
日本地質学会の論文
1948-07-20