海底熱水鉱床の選鉱性に影響を及ぼす鉱物相の形態的特徴

  • 大木 達也
    国立研究開発法人 産業技術総合研究所 環境管理研究部門
  • 西須 佳宏
    国立研究開発法人 産業技術総合研究所 環境管理研究部門 資源選別プロセス研究グループ
  • 星野 美保子
    国立研究開発法人 産業技術総合研究所 地質調査総合センター研究戦略部 研究企画室

書誌事項

タイトル別名
  • Characteristics of The Existing Mineral Phases of Japanese Submarine Hydrothermal Polymetallic Sulfides and Their Influence on Respective Mineral Processing Properties
  • カイテイ ネッスイ コウショウ ノ センコウセイ ニ エイキョウ オ オヨボス コウブツソウ ノ ケイタイテキ トクチョウ

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抄録

Submarine hydrothermal polymetallic sulfides are present in the sea near Izu- Ogasawara and Okinawa in Japan. These sulfide deposits are primarily composed of iron, barium, zinc, and lead, and include copper, silver, and gold. Though clearly identifiable as polymetallic sulfides, their mineral processing behavior is known to be totally different from that of the Kuroko deposits extracted from land mines in Japan. In this report, a selection of ore samples of submarine hydrothermal polymetallic sulfides from around Japan were analyzed, and the typical characteristics influencing mineral processing were investigated. The characteristics of the existing mineral phases, such as the mineral components, mineral domain size, and element distribution on ground sample, were especially focused on and investigated in the study, with respect to the grinding size required to achieve sufficient mineral liberation to conduct effective mineral processing. The results suggest that many types of sulfide deposits are present even in highly limited deposit regions, so that the respective samples are difficult to treat as one group with respect to mineral processing, because the mineral components, domain size, and trace elements co-existing within the minerals differ among the samples.

収録刊行物

  • 資源と素材

    資源と素材 131 (12), 619-626, 2015

    一般社団法人 資源・素材学会

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