| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
|---|
| Outline of Final Research Achievements |
The Izu-Bonin arc is considered to be partially subducting underneath the island of Honshu after the vertical collision with Honshu. In this study, 2-D numerical code for the analysis of subduction processes of oceanic arcs was created and calculations are carried out with various parameters. The results show that about 20% of the felsic crust materials in oceanic arcs that are comparable in size to the Izu-Bonin arc can be subducted into about 300 km depth when the temperature of the subducting slab is of the usual value. When the size of the arc is smaller, the subduction rate of felsic crust materials into the deep mantle grows larger.
|
