安徽省东至县程檀金矿成矿流体地球化学研究

Mineral Resources and Geology(2019)

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Abstract
东至县程檀金矿位于扬子陆块北缘,是一受构造控制的中低温热液蚀变矿床,金资源量具一定规模.根据流体包裹体地球化学研究显示:程檀金矿成矿阶段均一温度介于119.7℃~244.9℃之间,平均171.19℃;流体盐度w(NaCleq)介于0.18%~12.85%之间,平均4.15%;成矿压力变化范围为8.28 Mpa~22.57 MPa,平均13.57 Mpa,对应成矿深度变化范围为0.33~0.9 km,平均值为0.54 km.根据碳、氢、氧同位素研究表明,成矿流体可能主要来源于岩浆岩,后期有大气降水参与.
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