| 广东禾尚田矿区新类型风化壳离子吸附型稀土矿的发现及意义 |
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| 引用本文： | 黄华谷.广东禾尚田矿区新类型风化壳离子吸附型稀土矿的发现及意义[J].地质与勘探,2014,50(5):893-901. |
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| 作者姓名： | 黄华谷 |
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| 作者单位： | 广东省地质调查院，广东广州； 广东省地质局，广东广州 |
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| 基金项目： | 省部合作项目“广东乐昌市禾尚田矿区钨多金属矿普查”和中国地质调查项目（编号1212011220816，1212011120354）联合资助 |
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| 摘 要： | 在广东禾尚田矿区，通过地表和钻孔岩芯样品的野外硫酸铵浸泡-草酸点滴试验、化学分析、稀土（REE）配分分析、稀土浸取率测定等工作，首次发现了灰岩风化壳中存在离子吸附型富铕稀土工业矿床。稀土矿与坡残积钨锡矿、铷矿共伴生，并伴生锂、镓和铯等元素，具有中稀土富集和高浸取率的特点，是离子吸附型稀土矿的新类型。它的发现将对离子吸附型稀土矿床勘查产生深远的影响，大大拓展找矿思路和对象；并说明了在一个矿田或一个矿区内寻找新的矿种、新的矿床类型、新的含矿层位的重要性。通过成矿地质条件分析，作者认为矿区西部找矿前景甚佳，禾尚田矿区将成为一个集有色、稀有、稀土、贵金属矿产的多矿种、多矿床类型、多含矿层位的矿区。
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| 关 键 词： | 灰岩 风化壳 离子吸附型稀土矿 禾尚田矿区 广东 |
| 收稿时间： | 2014/2/26 0:00:00 |
| 修稿时间： | 2014/6/25 0:00:00 |
Discovery of a new type of weathering crust ion adsorption type rare-earth deposit in the Heshangtian ore district of Guangdong Province and its significance |
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| Huang Hua-gu.Discovery of a new type of weathering crust ion adsorption type rare-earth deposit in the Heshangtian ore district of Guangdong Province and its significance[J].Geology and Prospecting,2014,50(5):893-901. |
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| Authors: | Huang Hua-gu |
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| Abstract: | In this study, on-site ammonium sulfate immersion - oxalic acid drop tests, chemical analysis, rare earth (REE) distribution analysis and rare earth leaching rate measurement were carried out on the surface samples and drill cores from the Heshangtian ore district of Guangdong Province, and ion adsorption type europium-rich rare-earth industry deposit were first discovered in limestone weathering crust. The rare earth ores were associated with residual slope tungsten, tin and rubidium ores, intergrown with lithium, gallium, cesium and other elements. It has the feature of middle REE enrichment and high leaching rate, and is a new type of ion adsorption type rare-earth deposit. This discovery will have a profound influence on the exploration of ion adsorption type REE deposit, and highly expand the ore-search ideas and objects. It suggests the importance of finding new ores, deposits and ore-bearing horizons in a mine or a mining area. Through the analysis of metallogenic geological conditions, it is indicated there is a good prospecting potential in the west of the Heshangtian mine, and this mine will be a mining area with multiple deposit types, ore-bearing horizons and various kinds of ores having nonferrous metals, rare metal, REE and precious minerals. |
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| Keywords: | limestone weathering crust ion adsorption type rare-earth deposit Heshagntian ore district Guangdong Province |
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