| 贵州省罗甸透闪石矿床地质特征及找矿预测 |
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| 引用本文： | 范二川,兰永文,戴朝辉,王洪雨,李浪.贵州省罗甸透闪石矿床地质特征及找矿预测[J].矿物学报,2012,32(2):304-309. |
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| 作者姓名： | 范二川 兰永文 戴朝辉 王洪雨 李浪 |
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| 作者单位： | 贵州省有色金属和核工业地质勘查局五总队,贵州安顺,561000 |
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| 摘 要： | 罗甸透闪石矿床属燕山期岩浆热液矿床,成矿作用为接触交代;侵入岩体为辉绿岩,属偏碱性基性幔源浅成岩,岩体呈似层状顺层侵入于二叠系中统栖霞组（P2q）与茅口组（P2m）接触面之间;围岩蚀变有透闪石化和大理岩化,由岩体向外依次分为大理岩化带→透闪石化带;软玉矿体赋存于外接触带茅口组一侧,顺层产出;含矿带厚10～30余米,其中夹矿体十余层,矿体形态以似层状为主,次为透镜状,厚0.05～0.3 m。在1000 km2范围内发现5个辉绿岩体露头,呈带状出露,长3～35 km,显示有矿化,具有较好的找矿远景。
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| 关 键 词： | 透闪石 矿床成因 辉绿岩 找矿远景 罗甸 |
Geological Features of Luodian Tremolite Deposit,Guizhou Province,China and Its Prospecting Prediction |
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| FAN Er-chuan,LAN Yong-wen,DAI Zhao-hui,WANG Hong-yu,LI Lang.Geological Features of Luodian Tremolite Deposit,Guizhou Province,China and Its Prospecting Prediction[J].Acta Mineralogica Sinica,2012,32(2):304-309. |
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| Authors: | FAN Er-chuan LAN Yong-wen DAI Zhao-hui WANG Hong-yu LI Lang |
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| Institution: | (The Fifth Corps of the Geological Exploration Bureau of Guizhou Nonferrous Metals and Nuclear Industry,An Shun 561000,China) |
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| Abstract: | The Luodian tremolite(Nephrite) deposit belongs to intrusive magmatic hydrothermal deposit of Yanshan period,and is metallogenic mode for metasomatism.Intrusive rock belongs to diabase of basic hypabyssal rock,invaded stratoid and along stratum between the contact surfaces of Qixia group(P2q) and Maokou group(P2m).Wall rock alteration includes tremolite and marmorization.The rock can be divided into marmorization and tremolite from inside to outside.Tremolite ore bodies occur in the outer contact zone of the Maokou formation,with bedding production.Ore belt’s thickness is about 10-30 meters,and contains more than 10 layers of ore body.The orebody shape is bedded mainly and partly lenticular,with the thickness of 0.05-0.3 m.Five ribbon diabase were found,with outcrop 3-35 km in length,with good prospecting perspective. |
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| Keywords: | tremolite ore deposit diabase ore prospecting Luodian |
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