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日本の火砕丘の地形計測
http://hdl.handle.net/2297/5299
http://hdl.handle.net/2297/52993a33ddeb-396e-447a-af92-17d098489607
名前 / ファイル | ライセンス | アクション |
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KJ00004304555.pdf (1.1 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2017-10-02 | |||||
タイトル | ||||||
タイトル | 日本の火砕丘の地形計測 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Morphometry of Pyroclastic Cones in Japan | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
守屋, 以智雄
× 守屋, 以智雄 |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学文学部地理学 | |||||
書誌情報 |
金沢大学文学部地理学報告 巻 3, p. 58-76, 発行日 1986-12-25 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0289-789X | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10063514 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A morphometry of 225pyroclastic cones in Japan has been carried out with measurement using the topographic maps in 1:25,000scale. The results of the morphometry are Summarized as follows: (1) Most of scoria cones are 200-600 m wide and 20-100 m high and their craters are 100-300 m wide and 10-50 m deep. (2) The relative heights of the pyroclastic cones are less than 0.3 of the basal widths. (3) Most of the crater widths of the pyroclastic cones are more than a quarter of the basal widths. (4) Si0_2 values of the fragments composing the scoria cones are mostly less than 57%, and those of other pyroclastic cones range from 50 to 75%. (5) Proportions of basal widths to relative heights have no correlation to Si0_2 values. (6) Most of the pyroclastic cones in Japan have been formed since a few ten thousand years ago. (7) The scoria cones mainly distributed along the coast of the Sea of Japan and on Izu-Bonin arc. The tuff cones mainly stand along the volcanic front of Tohoku arc. |