ダイヤモンドの成因と海水中の微量元素の分布をコントロールする因子(1989年度日本地球化学会奨励賞受賞記念)

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概要

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• This review deals with two separate geochemical subjects; diamonds and seawater. The work on diamonds concentrates on the cubic type, which are characterised by numerous micro-inclusions. Chemical studies have concluded that these inclusions are fluid rich in carbonates and incompatible elements. Other studies, including work by this author, have suggested that the fluid inclusions originate in the upper mantle. I present a model as to the genesis of both cubic and octahedral dianonds. Secondly, the behavior of trace elements in seawater is reviewed. Emphasis is placed upon estuarine and coastal waters where the behavior of the trace elements is the most complicated. In particular, understanding the reactions between suspended particles and dissolved species is important inorder to interpret the behavior of the trace elements. It was found that the adsorption of trace elements onto the surface of humicacid-coated particles takes place at an urbanized estuarine area. In the Seto Inland Sea the trace elements were much more conservative than in the estuarine area. Finally, some recent studies implying that seawater and diamond are linked through subducting ocean floor are reviewed.

• 日本地球化学会の論文
• 1990-09-29

著者

• 赤木 右

  東京大学理学部化学教室

• 赤木 右

  東京農工大学大学院農学教育部物質循環環境科学専攻:(現)九州大学大学院理学研究院地球惑星科学部門

関連論文

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• 多摩川河口-東京湾域における微量重金属元素の分布と挙動(河口域)
• 分光分析における選択性の評価と考察
• ダイヤモンドの成因と海水中の微量元素の分布をコントロールする因子(1989年度日本地球化学会奨励賞受賞記念)
• キレート樹脂を用いるバッチ濃縮法を応用した海水中微量元素の船上濃縮装置の試作(超微量分析のための前処理と予備濃縮)

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