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<報文>秋田県明又鉱山産鉱石の単体分離度について
http://hdl.handle.net/10097/32352
http://hdl.handle.net/10097/32352f61fd1a0-e1c1-4aee-935e-4e425467298f
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
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公開日 | 2008-05-02 | |||||||||
タイトル | ||||||||||
タイトル | <報文>秋田県明又鉱山産鉱石の単体分離度について | |||||||||
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 |
竹内, 常彦
× 竹内, 常彦
× 島, 敞史
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著者(ヨミ) | ||||||||||
姓名 | TAKEUCHI, Tsunehiko | |||||||||
著者(ヨミ) | ||||||||||
姓名 | SHIMA, Hiromi | |||||||||
抄録 | ||||||||||
内容記述タイプ | Abstract | |||||||||
内容記述 | Akarimata mine with copper and iron sulphide deposit is in the northern part of Akita Prefecture. This region mainly consists of green tuff, propylite, propylitic tuff breccia, altered andesite of miocene members and sediments of paleozoic with many dykes of andesite and intrusive diorite. The deposit is shallow-seated fissure filling copper and iron sulphide veins. The ore minerals are mainly pyrite, pyrrhotite, chalcopyrite and a small amount of sphalerite and magnetite. The mineral paragenesis of this deposit is very interesting because it has the characteristic mineralization of pyrrhotite and the microscopic unmixing ore textures which are known to be found very little in tertiary vein deposit. Of the ore minerals, chalcopyrite contains sphalerite stars and vermicular pyrrhotites, and sphalerite also contains chalcopyrite and pyrrhotite emulsions formed by unmixing. The metallic ores are paragenised, as seen in Fig. 1. The ores were crushed by gyratory crusher and sized grains were observed under a reflecting microscope to determine the degree of liberation. The liberation ratios of the ores are 44.82% in 48 mesh, 73.85% in 100 mesh, 83.33% in 150 mesh and more than 92% under 200 mesh, as shown in Table 1,Figs. 3 and 4. The ores of Akarimata are more difficult to liberate into monomineral grains than the ores of usual tertiary vein-type deposits. | |||||||||
書誌情報 |
東北大學選鑛製錬研究所彙報 = Bulletin of the Research Institute of Mineral Dressing and Metallurgy, Tohoku University 巻 15, 号 2, p. 113-118, 発行日 1960-01-30 |
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収録物識別子タイプ | ISSN | |||||||||
収録物識別子 | 0040876X | |||||||||
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収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AN00168425 | |||||||||
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内容記述タイプ | Other | |||||||||
内容記述 | application/pdf | |||||||||
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出版タイプ | VoR | |||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
その他の言語のタイトル | ||||||||||
その他のタイトル | <Original Papers>On the Degree of Liberation of the Ores from Akarimata mine | |||||||||
出版者 | ||||||||||
出版者 | 東北大學選鉱製錬研究所 | |||||||||
資源タイプ | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 紀要類(bulletin) | |||||||||
登録日 | ||||||||||
日付 | 2008-05-02 | |||||||||
日付タイプ | Created | |||||||||
公開日(投稿完了日) | ||||||||||
日付 | 2008-05-02 | |||||||||
日付タイプ | Created | |||||||||
発行日 | ||||||||||
日付 | 1960-01-30 | |||||||||
日付タイプ | Created | |||||||||
フォーマット | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 542844 bytes | |||||||||
公開範囲 | ||||||||||
値 | 学外 | |||||||||
更新日 | ||||||||||
日付 | 2010-01-27 | |||||||||
日付タイプ | Created |