河南前河金矿床地球化学特征  

GEOCHEMICAL FEATURES OF QIANHE GOLD DEPOSIT, HENAN

作　　者：李莉[1] 卿敏[1] 陈祥[1] 

机构地区：[1]武警黄金地质研究所,河北廊坊065000

出　　处：《黄金地质》1999年第3期75-80,共6页Gold Geology

摘　　要：对前河金矿微量元素、稳定同位素、流体包裹体研究表明， 矿石中金与砷、钨、钼相关性较强， 矿体在垂向上微量元素分带性明显。成矿流体以岩浆水为主， 并有大气降水的混合。成矿物质主要由深源岩浆提供， 并有浅部物质参与。矿脉石英均一温度为２１２～３３１℃， 盐度平均为６７２％ ， 成矿压力平均为４８７２×１０－ ５ Ｐａ， 成矿流体属 Ｎａ＋  Ｋ＋  Ｃｌ－  Ｓ Ｏ２－４ 型， 而且气相成分中 Ｃ Ｏ２ 含量较高。The study on the trace elements, stable isotopes and fluid inclusions in Qianhe gold deposit indicates that Au, As, W, Mo in the ores are closely related and the vertical zonation of trace elements is distinct. The mineralizing fluids are mainly magmatic water, mixing with meteoric water. The mineralizing mass are mainly provided by plutonic magma, partly by shallow mass. The homogeneous temperature of lode quartz is 212~313℃ and the salinity is 6 72% average. Its mineralizing pressure is 487 2×10 -5 Pa average. The mineralizing fluid belongs to Na + K + Cl - SO 2- 4 type and the content of CO 2 in vapor phase is higher.

关 键 词：金矿床 地球化学 河南 成矿流体 

分 类 号：P618.510.4[天文地球—矿床学]