| 东胜断块系与东胜式铅锌矿床 |
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| 引用本文： | 燕守勋.东胜断块系与东胜式铅锌矿床[J].国土资源,1991(1). |
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| 作者姓名： | 燕守勋 |
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| 作者单位： | 中国矿业大学 徐州 |
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| 摘 要： | 辽东早元古宙拗拉槽中的铅锌矿床,可划分为层状矿床和脉状矿床两大类。本文论述了后一种类型的典型代表——东胜式铅锌矿床的控矿因素和矿床特征。依据大量地质事实,作者认为:东胜式铅锌矿床的控矿构造是与基底花岗岩活动密切相关的中生代半地堑系;矿质来源于地壳深部液态矿源层;中生代岩浆活动是矿液上升的热动力。综合这三大因素,建立了东胜式矿床的成矿模式。由此,期望对进一步找矿能有一定的指导意义。
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| 关 键 词： | 东胜断块系 半地堑格局 伸展环境 液态矿源层 热动力 东胜式矿床 |
DONGSHENG FAULT BLOCK SYSTEM AND DONGSHENG-TYPE LEAD-ZINC DEPOSIT |
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| Yah Shouxun.DONGSHENG FAULT BLOCK SYSTEM AND DONGSHENG-TYPE LEAD-ZINC DEPOSIT[J].Land & Resources,1991(1). |
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| Authors: | Yah Shouxun |
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| Abstract: | Lead-zinc deposit in aulacogcn of Early Proterozoic in eastern Liaoning are divided into stratiform and vein-type deposits. The paper deals with a typical one of the latter-Dongsheng-type lead-zine deposit on ore-controlling factors and oreforming features. According to geological facts, it suggests that ore-controlling structure of Dongsheng-type deposit is Mesozoic semigraben system closely related with the activity of fundamental grinite; ore-forming material derives from liquid sourcebed at the depth of crust; magmatic activity is the thermodynamic for uplifting ore fluid.Based on three factors aboved, a metallogenic model for Dongsheng-type deposits is set up. |
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| Keywords: | Dongsheng fault-block system Semigraben pattern Extensional environment Liquid source bed Thermodynamics Dongsheng type Pb-Zn deposit |
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