Title Transcription | ケイセキリュウ ト カザン ガラスヘン ノ イドウ オヨビ ベッドフォーム ケイセイ ジョウケン ニ カンスル スイロ ジッケン ヨホウ
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Title Alternative (English) | Preliminary report of flume experiments on movements and bedforms of pumice grains and volcanic glass particles
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File | |
language |
jpn
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Author |
Nakayama, Katsuhiro
Ikeda, Hiroshi
Yamamoto, Kenshiro
Kusano, Takashi
Iijima, Hideo
Itakura, Masako
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Description | We preliminaly studied volcaniclastic particle movement in an experimental flume.Experimental particles were obtained from the Pliocene Ohta tephra in central Japan.Average densities of glass particles and pumice grains are 2.25 g/cm^3 and 1.15g/cm^3,respectively.Average grain diameter of them are 0.077mm and 2.8mm,
respectively.We carried out five experimental runs,of which two were using with pumice grains,one with glass particles,one with mixed grains of pumice grains and glass particles,and one with mixed grains of pumice grains and sand-sized quartz grains.Results indicate that the entrainment of volcaniclastics in this experimental study is promoted at higher stream power than for the corresponding smooth spherical grains.Considering the terminal settling velocity of these volcaniclastics,these volcaniclastics show wider velocity range of transportation.Bedforms in mixed grains of pumice grains and glass particles could be controlled mainly by the dominant particles on the flume. |
Journal Title |
島根大学地球資源環境学研究報告
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Volume | 16
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Start Page | 37
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End Page | 45
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ISSN | 13439774
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Published Date | 1997-12-25
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NCID | AA11455176
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DOI(SelfDOI) | |
Publisher | 島根大学総合理工学部地球資源環境学教室
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Publisher Aalternative | Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
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NII Type |
Departmental Bulletin Paper
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Format |
PDF
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Text Version |
出版社版
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OAI-PMH Set |
Interdisciplinary Graduate School of Science and Engineering
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Remark | 12-14,16+ / 1993+
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他の一覧 |