| 冕宁稀土矿床稀土元素的赋存状态及其配分特征 |
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| 引用本文： | 施泽民.冕宁稀土矿床稀土元素的赋存状态及其配分特征[J].四川地质学报,1992(2). |
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| 作者姓名： | 施泽民 |
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| 作者单位： | 四川省地矿局109地质队 |
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| 摘 要： | 冕宁稀土矿是我国西南地区的大型轻稀土矿床。它不仅含有丰富的轻稀土,而且铕、钇等中重稀土较国内外同类型矿床高。该矿的特点是工业稀土矿物组成简单,矿石易选、易冶。矿石中90％左右的REO呈稀土矿物产出,其中氟碳铈矿占稀土矿物总量的80％—97％。矿石和主要稀土矿物的REF配分均属Ce>La>Nd富LREE的强选择配分型。矿石中轻稀土配分值高达97.48％—98.81％。矿石中Eu、Y配分值较高,而氟碳铈矿反而比矿石低。矿石中的黑色风化土状物富含次生稀土,其Eu、Y配分值比矿石、氟碳铈矿都高。
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| 关 键 词： | 稀土元素 氟碳铈矿 赋存状态 配分型式 |
THE OCCURRENCE AND PARTITON PATTERN OF THE RARE EARTH ELEMENTS IN THE MIANNENG RARE- EARTH MINERAL DEPOSIT, SICHUAN |
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| Shi Zemin.THE OCCURRENCE AND PARTITON PATTERN OF THE RARE EARTH ELEMENTS IN THE MIANNENG RARE- EARTH MINERAL DEPOSIT, SICHUAN[J].Acta Geologica Sichuan,1992(2). |
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| Authors: | Shi Zemin |
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| Abstract: | The Mianning rare-earth mineral deposit is a large-type light rare-earth mineral deposit in the southwest China. The ore is rich in light rare earth elements. In addition, medium and heavy rare earth elements such as Eu,Y, etc. in the ore are higher than those of the same type deposits at home and abroad. This mineral deposit is characterized by easily separated and easily smelted ores consisting of simple industrial mineral constituents. About 90% of REO in the ores occur as rare-earth minerals, 80-97% of ores and major rare-earth minerals belongs to the strongly selective partition pattern which is rich in LREE with Ce> La> Nd. The partiton value of the light rare earth elements in the ores reaches to 97.48-98.81%. The partiton values of Eu and Y of the ore are higher than those of the bastnaesite. The black weathering product in the ore is rich in secondary rare-earth minerals, the partition values of Eu and Y of which are higher than those of the ore and bastnaesite. |
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| Keywords: | rare earth element bastnaesite occurrence partition pattern |
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