| 吉林东部地区金矿地质特征及成矿作用分析 |
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| 引用本文： | 张勇,高全,闫晓林.吉林东部地区金矿地质特征及成矿作用分析[J].黄金科学技术,2009,17(5):42-45. |
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| 作者姓名： | 张勇 高全 闫晓林 |
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| 作者单位： | 武警黄金第一支队, 黑龙江 牡丹江 157021 |
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| 摘 要： | 吉林东部(延边)已探明大、中、小型金矿床(点) 39处, 是我国中生代火山岩热液型金矿床典型成矿区之一。通过对本区金矿地质特征研究及成矿作用分析表明: 区内矿床的形成在时空分布上与中生代火山岩-次火山岩有关; 区内赋矿围岩主要有遭受区域强烈蚀变的中生代晚侏罗世-早白垩世的各类火山岩和受区域构造控制的闪长玢岩、石英闪长斑岩(或花岗斑岩);金成矿物质来源于上地幔, 成矿溶液是岩浆热液和大气降水的混合流体。
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| 关 键 词： | 金矿 地质特征 成矿作用 吉林东部 |
| 收稿时间： | 2009-01-20 |
| 修稿时间： | 2009-02-23 |
Analysis of Geological Characteristics and Mineralization of Gold Deposits in Eastern Jilin |
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| ZHANG Yong,GAO Quan,YAN Xiaolin.Analysis of Geological Characteristics and Mineralization of Gold Deposits in Eastern Jilin[J].Gold Science and Technololgy,2009,17(5):42-45. |
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| Authors: | ZHANG Yong GAO Quan YAN Xiaolin |
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| Affiliation: | No.1 Cold Geological Part of CAPF, Mudanjiang 157021,Heilongjiang, China |
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| Abstract: | It has been discovered that there are about 39 gold ore deposits at the east of Jilin province (Yanbian area), including several type of deposits, such as big-type deposits, middle-type deposits and small-type deposits. This area is the classic area of volcanic hydrothermal type gold deposit of mesozoic. According to the analysis of geological characteristics and ore-forming in this ore-field, we find that the ore deposit of this area is related with mesozoic volcanic rocks and sub-volcanic rocks. The ore containing wall-rock includes the late jurassic-early cretaceous volcanic rocks, which have been deep altered, and diorite porphyrite, quartz diorite porphyrite(or granitic porphyry), which are controlled by regional structures. Most of the ore-forming material in this gold deposit is from upper-mantle, the ore-forming solution is the mixed fluid of magmatic hydrothermal and atmospheric precipitation. |
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| Keywords: | Gold deposits Geological characteristics Mineralization Eastern Jilin |
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