石家铺子金矿床地质特征及成矿模式

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石家铺子金矿床是岩浆期后热液叠加改造层控破碎带蚀变岩型金矿,其成矿时代为燕山早期,成矿温度180~300℃.岩石中元素丰度及其演化资料表明,本矿床成矿物质来自地层,部分来自岩浆岩.断裂构造严格控制金矿体的产出,并决定了工业矿体的规模及空间定位.硫同位素组成特征表明,硫源以深源同熔岩浆热液为主,部分来自地层.氧、碳同位素组成特征反映成矿溶液以岩浆水为主,混有少量变质水和大气降水 The Shijiapuzi gold deposit is an alteration stratigraphic alteration rock type gold deposit after the magmatic period. The metallogenic epoch was the early Yanshanian deposit and the metallogenic temperature was 180-300 ℃. The abundance of elements in the rock and its evolution data indicate that the metallogenic material of this deposit comes from the strata and partly from magmatic rocks. The fault structure strictly controls the output of gold ore bodies and determines the size and spatial location of industrial ore bodies. The characteristics of sulfur isotopic composition indicate that the source of sulfur is mainly derived from the same source of magmatic lava and partly from the strata. Oxygen and carbon isotopic compositions reflect that the ore-forming solution is mainly magmatic water mixed with a small amount of metamorphic water and atmospheric precipitation
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