Discovery and Significance of Cobalt-Rich Sulfides in the Porphyry-Skarn Deposits of the Luanchuan Mo-Polymetallic Ore Field
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图 1 栾川钼多金属矿集区地质简图
Fig. 1. Simplified geological map of the Luanchuan Mo-polymetallic ore field
图 2 栾川钼多金属矿集区代表性样品手标本特征
a. 鱼库花岗质岩体中的石英‒黄铁矿‒辉钼矿脉；b. 南泥湖‒三道庄钙质矽卡岩；c. 南泥湖‒三道庄钙质矽卡岩中的石英‒黄铁矿脉；d. 南泥湖‒三道庄大理岩中的磁黄铁矿细脉；e~i. 秋树沟多金属硫铁矿矿石；j. 骆驼山多金属硫铁矿矿石；k~l. 西沟银铅锌矿石
Fig. 2. Hand specimens of representative samples from the Luanchuan Mo-polymetallic ore field
图 3 栾川钼多金属矿集区代表性样品黄铁矿和磁黄铁矿的钴含量（10‒6）
a. 鱼库花岗质岩石中的石英‒黄铁矿‒辉钼矿脉；b. 南泥湖‒三道庄钙质矽卡岩中的黄铁矿脉；c. 南泥湖‒三道庄镁质矽卡岩中的石英‒磁黄铁矿‒黄铁矿脉；d. 南泥湖‒三道庄钙质矽卡岩中的石英‒磁黄铁矿‒黄铁矿脉；e. 秋树沟镁质矽卡岩多金属硫铁矿体中的浸染状黄铁矿‒磁黄铁矿；f. 秋树沟镁质矽卡岩多金属硫铁矿体中的黄铁矿‒辉钼矿脉；g. 秋树沟镁质矽卡岩多金属硫铁矿体中的黄铁矿；h. 秋树沟镁质矽卡岩多金属硫铁矿体中的浸染状黄铁矿‒磁黄铁矿；i. 骆驼山镁质矽卡岩多金属硫铁矿石中的黄铁矿
Fig. 3. Cobalt content of pyrite and pyrrhotite in representative samples from the Luanchuan Mo-polymetallic ore field (10‒6)
图 4 栾川钼多金属矿集区代表性矿床中黄铁矿和磁黄铁矿的钴含量
斑岩‒矽卡岩型铜金矿的黄铁矿钴含量数据源自Reich et al.（2013）、Zhang et al.（2016）、Xie et al.（2020）和Keith et al.（2022）；矽卡岩型铁矿的黄铁矿钴含量数据源自Liang et al.（2023）和Zhang et al.（2024）
Fig. 4. Cobalt contents of pyrite and pyrrhotite from representative deposits in the Luanchuan Mo-polymetallic ore field
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