| 小秦岭金洞岔金矿床的形成条件与成矿机制研究 |
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| 引用本文： | 康学勇. 小秦岭金洞岔金矿床的形成条件与成矿机制研究[J]. 黄金, 1999, 20(7): 1-5 |
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| 作者姓名： | 康学勇 |
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| 作者单位： | 山西省黄金工业公司 |
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| 摘 要： | 金洞岔金矿床是名小秦岭金矿田中最重要的矿床之一，属以后生作用为主的层控石英脉型金矿床，矿石包体研究与热力学计算表明成矿温度为１６７～３４０℃，压力为１．４×１０＾８Ｐａ，成矿流体具有弱酸性至中酸性，成矿物质主要来源于太华群变质基性火山喷发及碎屑岩，金主要呈硫氢络合物（Ａｕ（ＨＳ）２）的形式进行迁移，随着温度，压力，氧逸度，硫逸度，ｐＨ，Ｅｈ值等的变化，在有利的构造空间沉淀富集。
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| 关 键 词： | 层控型 金矿床 流体包裹体 成矿机制 |
Study on condition of the forming of JinDongCha Gold Deposit of Henan Province and the mechanism of its mineralization |
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| Kang Xueyong. Study on condition of the forming of JinDongCha Gold Deposit of Henan Province and the mechanism of its mineralization[J]. Gold, 1999, 20(7): 1-5 |
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| Authors: | Kang Xueyong |
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| Affiliation: | Shanxi Gold Industry Company |
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| Abstract: | JinDongCha Gold Deposit is one of the most important gold deposits in the famous XiaoQingLing gold field.It belongs to stratabound quartz vein gold deposit.It shows from study of ore enclosure and thermodynamic calculation that its mineralization temperature is 167-340,the pressure is 1.4108Pa,the mineralizing fluid is provided with weak acidity and medium acidity,and the mineralizing materials are mainly from metamorphic volcanicextrusion and volcaniclastic rocks of Taihua Group.The gold migrate as 2]-.Along with variations of T(temperature),P(pressure),fO2fS2pH and Eh value,gold are precipitated and enriched in the suitable tectonic space. |
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| Keywords: | stratabound gold deposit fluid enclosure physicalchemical condition mechanism of mineralization |
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