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＜departmental bulletin paper＞
Heavy mineral distributions in the surface sediments of Suruga Bay, central Japan
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| Abstract | To clarify heavy mineral compositions and controlling factors of their distribution in unique environments from a shallow to very deep basin of Suruga Bay in central Japan, about 60 dredged samples we...re analyzed petrologically. Identified mineral species are hypersthene, clinopyroxene, chlorite, common hornblende, biotite, zircon, garnet, apatite, olivine and pumpellyite. These minerals show characteristic distributional features presenting at least three mineral provinces. Chlorite is predominant in the Senoumi Basin and the western coastal area, hypersthene and clinopyroxene are rich in the coastal area of the Izu Peninsula, and a suite of zircon, garnet and biotite are common in the Senoumi Basin. These mineral provinces clearly reflect the geology of provenances. In addition, other major factors controlling the mineral distribution, such as basin topography and basin circulations are also discussed in detailshow more |
| Table of Contents | 1. まえがき 2. 駿河湾の海底地形，海底地質と海況 3. 試料と研究方法 4. 結果 5. 考察 |
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| Created Date | 2021.10.15 |
| Modified Date | 2022.06.20 |