| 刘智明.东安浅成低温热液型金矿床地质特征及成因[J].地质找矿论丛,2006,(2):95-99 |
| 东安浅成低温热液型金矿床地质特征及成因 |
| GEOLOGY,GEOCHEMISTRY AND GENESIS OF THE DONGAN GOLD DEPOSIT,HEILONGJIANG PROVINCE |
| 投稿时间：2005-03-07 修订日期：2005-06-13 |
| DOI：10.6053/j.issn.1001-1412.2006.2. 005 |
| 中文关键词: 东安金矿 浅成低温热液型矿床 矿床地球化学 成矿模式 黑龙江省 |
| 英文关键词:Dongan gold deposit geology geochemistry genesis Heilongjiang province |
| 基金项目: |
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| 中文摘要: |
| 东安金矿床是浅成低温热液型金矿床,赋存于中酸性火山-侵入岩、印支晚期碱长花岗岩和燕山晚期细粒碱长花岗岩脉强硅化蚀变带中,受库尔滨断裂的次级断裂控制。岩石地球化学显示,金来源于深部岩浆。氢氧同位素结果表明,流体中的水主要来自岩浆水和大气水。流体包裹体研究结果显示,该矿床成矿温度为144～348℃,成矿深度为0.2～1.0km。同位素地质年代测试结果证实,矿床形成于燕山晚期。 |
| 英文摘要: |
| Dongan gold deposit is a epithermal gold deposit occurring in the strong silicification zone of Late Indosinian alkali feldspar granite and Late Yanshanian fine-grained alkali feldspar granite in the intermediate-acidic volcanic-intrusive rock.It is controlled by sub-fault of Kuerbin crust fault.According to litho-geochemical data and H,O isotopic data gold is mainly derived from the deep-sourced magma and water of the ore fluid from magmatic water and meteoritic water.Fluid inclusion data show that ore is formed in the temperature range of 144-349℃ and pressure 48.75×105-382.88×105 Pa at depth of 0.2-1.0 km.The isotope age is correspondent to Late Yanshanian Period. |
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