| 胶西北焦家式和玲珑式金矿的形成机理 |
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| 引用本文： | 程伟,瞿友兰,田秀林,王强,于雷亨.胶西北焦家式和玲珑式金矿的形成机理[J].山东国土资源,2011,27(3). |
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| 作者姓名： | 程伟 瞿友兰 田秀林 王强 于雷亨 |
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| 作者单位： | 山东省地质科学实验研究院,山东,济南,250013 |
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| 基金项目： | 2007年山东省国土资源厅地勘基金《山东胶莱盆地北部金矿成矿规律及找矿方向》部分内容 |
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| 摘 要： | 在胶西北地区,中生代郭家岭超单元岩浆期后成矿热液,形成了广泛发育的焦家式(蚀变岩型)和玲珑式(石英脉型)金矿床,并且具有相同的成矿热液,之所以产生两类有较大差异的上述不同类型的金矿床,在于热液房与外界的沟通条件有很多的不同。蚀变岩型金矿的热液房与外界沟通相对开放,成矿热液的压力迅速降低,促其汽化,增强了活动,有利于广泛交代作用的产生,导致了蚀变岩型矿床的形成;石英脉型的矿床热液房与外界沟通条件差,当温度下降后,才与外界沟通,主要表现为充填作用,而形成石英脉型矿床。
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| 关 键 词： | 金矿床类型 岩浆期后成矿热液 热液房 焦家式 玲珑式 胶西北地区 |
forming Mechanism of Jiaojia Type Gold Deposit and Linglong Type Gold Deposit in Northwest Jiaodong Area |
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| CHENG Wei,QU Youlan,TIAN Xiulin,WANG Qiang and YU Leiheng.forming Mechanism of Jiaojia Type Gold Deposit and Linglong Type Gold Deposit in Northwest Jiaodong Area[J].Land and Resources in SHANDONG Province,2011,27(3). |
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| Authors: | CHENG Wei QU Youlan TIAN Xiulin WANG Qiang and YU Leiheng |
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| Institution: | CHENG Wei,QU Youlan,TIAN Xiulin,WANG Qiang,YU Leiheng(Shandong Institute and Laboratory of Geological Sciences,Shandong Jinan 250013,China) |
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| Abstract: | In the northwest Jiaodong area,ore-forming hydrothermal fluids after magmatic period in Mesozoic Guojialing superunit had formed Jiaojia type(altered rock type) and Linglong type(quartz vein type) gold deposits.These two deposits had the same ore-forming hydrothermal.Different types of deposits were formed by different communication conditions between hydrothermal room and the outside world.The hydrothermal room of altered rock type gold deposit was relatively open with the outside world.The pressure of h... |
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| Keywords: | Gold deposit types magmatic hydrothermal mineralization hydrothermal room Jiaojia type Linglong type north part of Jiaodong area |
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