わが国の堆積型ウラン鉱床の特性

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書誌事項

タイトル別名
  • The Characteristics of the Uranium Deposits in Sedimentary Rocksin Japan
  • ワガクニ ノ タイセキガタ ウラン コウショウ ノ トクセイ

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抄録

As the result of the energetic prospecting, many promising uranium deposits were discovered in sedimentary rocks in so-alled “massif” regions.<BR>As to the syngenetic type, the uranium mineralization is observed in the black shale beds of Paleozoic age related with the bedded manganese deposits. These deposits are considered as the potential resources at present.<BR>In Japan the most important deposits, such as Ningyô-tôge deposits, Oguni and Kanamaru deposits, Okutango deposits and Tônôdeposits, are those of ground water type. It is believed that the uranium in the ground water, derived from graninic rocks, was precipitated under the reducing condition, after the deposition of theconglomerate, the sandstone and the mudstone of Neogene Tertiary age. Considering the ages of these are deposits and the environments of deposition of their host rocks, it can be said that the wide areas with the sedimentary rocks of the same type remain unexplored.<BR>The studies of characteristicsof the ores of Ningyô-tôge prove that they have good quality andtheir treatment is very easy, in spite of its relatively low grade in comparison with forreign ores.

収録刊行物

  • 日本鑛業會誌

    日本鑛業會誌 79 (902), 525-530, 1963

    一般社団法人 資源・素材学会

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