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矿床地质  2004 

新疆哈尔里克双峰山浅成低温热液金矿床的地质特征与成矿模式

Keywords: 地质学,火山热泉,潜火山热液,蚀变矿物晕(带),成矿模型,双峰山,新疆

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Abstract:

对新疆东准噶尔哈尔里克构造带上双峰山金矿床的地质特征、矿床蚀变分带进行了初步研究,表明潜火山热液与火山热泉参与了成矿。这两个成矿阶段同源同位的蚀变矿物晕(带)叠套,造成双峰山矿床蚀变分带从上至下为隐爆硅质角砾岩化带、低金品位硅质岩带、石英(冰长石)网脉带(矿体)、黄铁矿蒙脱石化带和青磐岩化带。该矿床的成矿流体与晚古生代造山初期深成流纹质熔浆的陆相喷发有关。火山热泉循环形成蚀变晕,此阶段有大气降水的参与;潜火山热液成矿阶段发育的低温微细石英网脉中含冰长石和绢云母。双峰山矿床是晚古生代火山地区典型的冰长石_绢云母型浅成低温热液金矿床。

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