NUMERICAL SIMULATION OF THE FORMATION OF THE CRUSTAL STRUCTURE OF THE IZU PENINSULA
1984 年 32 巻 2 号 p. 137-142
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1984 年 32 巻 2 号 p. 137-142
The origin of the detailed crustal structure obtained by explosion seismology in the Izu Peninsula is explained by a numerical simulation of viscous fluid flow. At the place where the two blocks of different crustal structure are in contact, a certain layer of one block is inserted by viscous flow along the interface of the two layers in the other block. The inserted layer extends to about 5 km in 40 m.y. after the contaction, and the similar structure as observed in the Izu Peninsula appears if the crustal viscosity is assumed as 1020 poise.
