number of downloads : ?
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
Title Alternative (English)
Preliminary report of flume experiments on movements and bedforms of pumice grains and volcanic glass particles
File
language
jpn
Author
Nakayama, Katsuhiro
Ikeda, Hiroshi
Yamamoto, Kenshiro
Kusano, Takashi
Iijima, Hideo
Itakura, Masako
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
Volume
16
Start Page
37
End Page
45
ISSN
13439774
Published Date
1997-12-25
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
他の一覧
このエントリーをはてなブックマークに追加