新疆卡拉麦里清水泉金铜矿床地球化学特征及成因研究

发布时间：2018-04-19 16:32

  本文选题：流体包裹体 + 硫同位素　； 参考：《新疆大学》2015年硕士论文

【摘要】：清水泉金铜矿床位于卡拉麦里成矿带西段,是武警黄金部队近年来在新疆东准噶尔地区发现的一极具勘查潜力的矿床。矿体赋存于次火山岩中,矿化类型以细脉状和网脉状为主。对该矿床成矿期流体包裹体研究表明,其具有中低温度、中低盐度、密度较高、压力较小等特点,与火山活动有关的铜矿的流体包裹体相类似。矿床硫同位素的变化范围为0.8-2.5‰,极差3.3,平均0.84‰,表明成矿物质来源于深源岩浆。矿石具有与围岩相似的稀土及微量元素特征也进一步反映成矿物质来源与围岩密切相关。结合地层、构造、岩浆岩特征,认为矿床的最初形成与早期中基性火山喷发和次火山岩体侵入有关,晚期浅成岩脉的侵入再次提供部分成矿物质和热源,使铜矿化再次富集。
[Abstract]:Qingshuiquan gold-copper deposit is located in the western section of the Kalamaili metallogenic belt and is a potential deposit discovered by the armed police gold army in the East Junggar area of Xinjiang in recent years.Ore bodies occur in subvolcanic rocks, and the main types of mineralization are vein-like and net-vein.The study of fluid inclusions in the metallogenic period of the deposit shows that it has the characteristics of medium and low temperature, low salinity, high density and low pressure. The fluid inclusions of copper deposits related to volcanic activity are similar.The range of sulfur isotopes varies from 0.8 to 2.5 鈥，

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