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Title Transcription
オカヤマケン カワカミチョウ ニ オケル ナリワ ソウグン ノ ビショウ クッキョク コウゾウ ト ジスベリ イドウ ノ コンセキ
Title Alternative (English)
Micro folds of the Triassic Nariwa Group and old shallow slides on slopes in the Kawakami area,Okayama,Japan
File
language
jpn
Author
Yokota, Shuichiro
Sugiyama, Terumasa
Description
Hill slopes in the Kawakami area,Okayama are known to be susceptible to landslide.The slopes consist of the Triassic Nariwa Group,which contains thin coal layers.Dips and strikes of the Nariwa Group change from place to place,and because of this complicated structure,many recent surface landslides overlap on tectonically deformed structures.
Characteristic minor folds of alternating beds of sandstone and mudstone are well recognized on hilly slopes.They are regarded as structures formed by surface sliding.These have following configurational characteristics:they tend to appear in restricted layers,have close folds,and axial planes of folds are almost horizontal.Based on the topographic situation that slopes containing minor folds are deeply eroded,they are regarded as remnants of old structures.Gently dipping bedding planes of minor folds may have influenced recent landsliding on slopes by forming potential sliding planes.
Journal Title
島根大学地球資源環境学研究報告
Volume
20
Start Page
143
End Page
152
ISSN
13439774
Published Date
2001-12-28
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+
中山勝博助教授追悼特集
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