北海道大江鉱山付近の地質鉱床(2)
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- 太田垣 亨
- 日本鉱業本社探査部探査課
書誌事項
- タイトル別名
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- Geology and Ore Deposits of the Oe Mine, Hokkaido (2)
- On the Occurrence of Ore Deposits
- 主として鉱床胚胎の場について
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説明
Geologically, the northeastern part of the Shakotan Peninsula where, the Oe mine is located, is composed of acidic plutonic rocks, liparite, green tuff and igneous rocks.<BR>Liparite covers the acidic plutonic rocks, and the green tuff, which can be divided into many beds, covers the liparite.<BR>It can be observed that the igneous activities were followed by basaltic and andesitic igneous activities.<BR>This area is characterized by the following geological features;<BR>Folding-Shakotan dome, and Hachinaidake, Kamifutamata and Senzaizawa anticlines.<BR>Faulting-Parallel fault group (Oe-Inakuraishi tectonic line) and Inaho-Taishu fault.<BR>Many ore deposits. occur in the Shakotan Peninsula area. The central part of the ore deposits is chiefly composed of chalcopyrite, galena, zincblende veins, while the marginal parts are chiefly madee up fo manganiferous veins.<BR>The Oe-Inakuraishi tectonic line belongs to one of the parallel fault groups, comprising a number of faults, some being parallel to the parallel faults having a strike of N 60°W, while others are parallel to the Kamifutamata anticline striking N 60°E.<BR>The vein structure of the Oe mine is also affected by the direction of N 60°W and N 60°E, the direction of the faults and anticlines.<BR>The above characteristics of occurrence of ore deposits and vein structures have been utilized for prospecting, and can be used also for future prospecting.
収録刊行物
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- 鉱山地質
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鉱山地質 10 (44), 359-368, 1960
資源地質学会
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詳細情報 詳細情報について
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- CRID
- 1390001206524431104
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- NII論文ID
- 130003638956
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- ISSN
- 00265209
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- データソース種別
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- JaLC
- CiNii Articles
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