海洋铜锌同位素地球化学研究进展

陈璐, 孙若愚, 刘羿, 徐海

Advances in the Isotope Geochemistry of Copper and Zinc in Oceans

Lu CHEN, Ruoyu SUN, Yi LIU, Hai XU

图3 现代海洋铜锌源汇及其同位素相关分馏过程示意图（据参考文献［3，74，75］修改）
现代海洋铜锌的输入与输出分别在左右以箭头为显示，铜锌的输入分为：配体结合的CuL或ZnL（大量）和自由金属离子Cu²⁺或Zn²⁺（少量），均以虚线表示其大致同位素组成；其中配体结合的铜锌同位素均重于自由离子^{［34，35，51］}

Fig. 3 Schematic cartoon illustrating the sources and sinks of Cu and Zn in the modern ocean and relevant fractionation processes of their isotopes （modified after references ［3，74，75］）
The inputs and outputs are shown as arrows on the left and right respectively， within the oceans this input is split into two pools： a dominant ligand-bound pool （CuL or ZnL）and a minor free metal ion pool （Cu²⁺ or Zn²⁺），isotopic compositions shown as the horizontal dashed lines. The ligand-bound pool is shown as heavy relative to the free metal ion^{［34，34，51］}