| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Outline of Final Research Achievements |
U-Pb dating of zircons from sandstones and granite clasts in forearc basins have revealed that volcanic arc was uplifted at 86 Ma and 69 Ma, submarine fan was developed in a forearc basin and large volume of plutonic clasts were derived from the volcanic arc together with zircon from coincident volcanic rocks. On the other hand, U-Pb ages of detrital zircons from Cretaceous accretionary complexes are changed from Jurassic and Permian dominant to Precambrian. It is inferred that Jurassic and Permian volcanic arc were uplift together with Cretaceous volcanic arc.
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