河南南召县佛爷沟铅锌矿床成矿流体特征研究

Mineral Resources and Geology(2017)

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Abstract
通过对野外地质特征及流体包裹体研究,将本区成矿过程分为3个成矿阶段:石英-黄铁矿阶段、石英-多金属硫化物阶段及石英-碳酸盐阶段.包裹体类型主要为富液相包裹体(LV型).石英-黄铁矿阶段均一温度主要集中于290℃~330℃,盐度变化范围为0.35%~11.23%,平均值为5.37%;石英-多金属硫化物阶段的均一温度主要集中于290℃~330℃,盐度变化范围为0.35%~11.23%,平均值为5.37%;石英-碳酸盐阶段温度均一温度主要集中于133℃~201℃,盐度变化范围为2.23%~12.07%,平均值为4.96%.成矿流体在初始阶段为较高盐度的岩浆流体,属于中-低温、低盐度的H2O-NaCl体系,随着成矿作用的进一步演化,晚期有大气降水的参与.
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Key words
Foyegou Pb-Zn deposit,geological characteristics,fluid inclusion,mineralization phase,Henan
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