Geochemistry and mineralization age of the Mayuan zinc deposit, Nanzheng, southern Shaanxi, China
Geochemistry and mineralization age of the Mayuan zinc deposit, Nanzheng, southern Shaanxi, China
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发表时间：
2007
影响因子：
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通讯作者：
Li Hou-min;Chen Yuchuan;Wang Denghong;Li Huaqin
中科院分区：
文献类型：
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作者：
Li Hou-min;Chen Yuchuan;Wang Denghong;Li Huaqin
新发现的马源锌矿床位于扬子克拉通北缘。产于震旦系灯影组国际白云岩断裂带。闪锌矿通常与固体沥青伴生。闪锌矿的Rb-Sr等时年龄为486 Ma±，表明该矿床形成于加里东期。矿物的碳、氧同位素、微量元素和稀土元素研究表明，锌矿床的成矿物质和成矿流体主要来源于寄主岩。综合分析表明，该锌矿床为赋存于震旦系碳酸盐岩中的层控MVT矿床。
The newly discovered Mayuan zinc deposit is located on the north margin of the Yangtze craton.It occurs in an interformational fault zone of dolostone of the Sinian Dengying Formation.Sphalerite is usually associated with solid bitumen.The sphalerite gives an Rb-Sr isochron age of 486 Ma±,showing that the deposit formed in the Caledonian stage.Carbon and oxygen isotope and trace element and REE studies of the minerals indicate that the ore-formation materials of the Zn deposit and fluids mainly originated from host rocks.Integrated analysis shows that this zinc deposit is a stratabound MVT deposit hosted in Sinian carbonate rocks.