ID | 84176 |
タイトルヨミ | シコク サンチ カラ ケンシュツ サレタ テフラ ニ モトズク サンチ シャメン ノ チョウキ アンテイセイ
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タイトル別表記 | Long term stability of mountain slope based on tephrochronology in Shikoku Mountains, Tokushima, Japan
|
著者 |
田村, 俊之
ニタコンサルタント株式会社
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キーワード | tephra
K-Ah
AT
Shikoku mauntains
slope failure
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資料タイプ |
紀要論文
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抄録 | Formative processes of mountain slope in Shikoku Mountains are discussed based on tephrochronology. We
carried out identification of tephra layers in colluvial deposits at mountain slope, Shikoku Mountains, Tokushima Prefecture. These tephras named locally Ohyohchi, Nakaue-1 and -2 tephras. Ohyohchi tephra and Nakaue-1 tephra are correlative with AT tephra from South Kyushu, and Nakaue-2 tephra is correlative with K-Ah tephra from South Kyushu, in terms of the similarities of petrography, refractive index of volcanic glass. The occurrence of these tephra layers shows that K-Ah tephra overlies colluvial deposits including AT tephra. Thus, recurrence interval of slope failure was estimated to be more than ten thousand years. |
掲載誌名 |
徳島大学総合科学部自然科学研究 = Natural Science Research, The University of Tokushima
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ISSN | 09146385
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cat書誌ID | AN10065859
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巻 | 25
|
号 | 4
|
開始ページ | 21
|
終了ページ | 27
|
並び順 | 21
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発行日 | 2011
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EDB ID | |
フルテキストファイル | |
言語 |
jpn
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部局 |
理工学系
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