| 新疆南天山查岗诺尔大型磁铁矿矿床地质特征及矿床成因 |
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| 引用本文： | 胡秀军,陈文革.新疆南天山查岗诺尔大型磁铁矿矿床地质特征及矿床成因[J].火山地质与矿产,2010(3):185-193. |
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| 作者姓名： | 胡秀军 陈文革 |
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| 作者单位： | 新疆地质矿产勘查开发局第三地质大队,新疆库尔勒841000 |
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| 摘 要： | 查岗诺尔铁矿床为新疆南天山近年来发现的大型磁铁矿床。该矿床产于南天山造山带下石炭统大哈拉军山组火山-碎屑-碳酸岩建造中,储量达到1.3亿吨。矿床由多个平行于地层层理的矿体组成,其主矿体位于隐爆角砾岩内。主要的矿物组合包括磁铁矿、磁赤铁矿、穆磁铁矿、赤铁矿、假象赤铁矿及极少量的镜铁矿等。通过对矿石的结构、构造以及矿石矿物化学成分的综合分析,表明该矿床的形成与火山通道附近的潜火山构造隐爆作用密切相关。该矿床的发现为区域上寻找同类矿床提供了广阔的找矿前景。
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| 关 键 词： | 铁矿床 火山岩 查岗诺尔 新疆 |
Geological characteristics and genesis of Chagangnuoer large-sized magnetite deposit in Southern Tianshan,Xinjiang |
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| HU Xiu-jun,CHEN Wen-ge.Geological characteristics and genesis of Chagangnuoer large-sized magnetite deposit in Southern Tianshan,Xinjiang[J].Volcanology & Mineral Resources,2010(3):185-193. |
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| Authors: | HU Xiu-jun CHEN Wen-ge |
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| Institution: | (No.3 Geological Party of Xinjiang Bureau of Geology and Mineral Resources,Kuerle,Xinjiang 841000,China) |
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| Abstract: | Chagangnuoer large-sized magnetite deposit,which is hosted in the volcanic—clastic-carbonate rocks of the Lower Carboniferous Dahalajunshan Formation in Southern Tianshan orogenic belt,was found at Southern Tianshan area in latest years with its reserves reaching up to 1.3 billion tons.The deposit is composed of multiple magnetite layers paralleled with stratigraphical bedding surface;its main ore body is occurred in crypto-explosive breccias rocks.The mineral assemblage includes mainly maghemite,magnetite,mushketovite,hematite,martite and occasionally specularite.Based on detailed studies on the structures,textures and chemical compositions of ores,it is suggested that the formation of the Chagangnuoer deposit is closely related to the crypto-explosive activity of the crypto-volcanic structure nearby the volcanic conduit.The discovery of this deposit is of great significance in regionally exploring the similar-type deposits in Tianshan area. |
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| Keywords: | iron deposit volcanic rock Chaganuoer Xinjiang |
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