| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
In nothrern Japan, it has been difficult to construct a detailed chronology of marine terraces of the Middle Pleistocene, due to the lack of the marker tephra layers and to the deformation of original landforms by strong past periglaciations. The lack of age constraint has prevented studies of precise geomorphic development and estimation of uplift rates in this area. This study applies a post-IR IRSL (pIRIR) dating to marine terraces in northern Japan.
The results of field survey and experimental data indicate that chorology of marine terraces based on pIRIR ages in several area is different from known ages. These chronological data are important evidence in order to estimate Quaternary crustal movements in northern Japan.
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