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ID 850
本文ファイル
別タイトル
Mass wasting process at the surface of the Sangun metamorphic rocks in Kaminishigawa area, Asahi-machi, Okayama Prefecture.
著者
新宮原 秀和
津島 淳
キーワード
mass wasting
weathering
Sangun metamorphic rocks
NDC
地球科学・地学・地質学
抄録(英)
The relation among microstructures, weathering and mass wasting of the Sangun metamorphic rocks in the Kaminishigawa area, Asahi-machi, Okayama Prefecture, was studied. Three stages of penetrative planar structures are recognized; S1 schistosity, S2 crenulation cleavage and S3 crenulation cleavage. The S2 cleavage is the most commonly observed structure. The deree of weathering is divided into two classes on the base of appearance; slightly weathered and highly weathered rock. The three types of mass wasting are also observed in this area; creep, slide and flow type. The S2 cleavage are bent and broken into several blocks in the creep type. The slide type is of rock block sliding along S2 cleavage. The flow type is of debris flow. The type of mass wasting, degree of weathering, and topographic position are mutually related : the slightly weathered rock and creep type are observed on the steep slope at the foot of the mountains; slightly weathered rock and slide type on the steep slope of the mountainside; highly weathered rock and flow type on the gentle slope near the top of the mountains.
掲載誌名
広島大学総合科学部紀要. IV, 理系編
25巻
開始ページ
75
終了ページ
87
出版年月日
1999-12-28
出版者
広島大学総合科学部
寄与者
国立情報学研究所
作成年月日
2006-03-21
ISSN
1340-8364
NCID
SelfDOI
言語
日本語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
総合科学研究科
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