2017 Fiscal Year Final Research Report
Uplifting style of Northern Japan Alps by deformation analysis of volcanic and clastic dikes
| Project/Area Number |
15K05310
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 隆起 / 火山弧 / ジルコン / U-Pb年代 |
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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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| Free Research Field |
地質学
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