| 广西某地钽铌铍花岗伟晶岩矿床地质特征 |
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| 引用本文： | 李人科,张旭明.广西某地钽铌铍花岗伟晶岩矿床地质特征[J].地质与勘探,1995,31(6):15-22. |
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| 作者姓名： | 李人科 张旭明 |
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| 作者单位： | 广西有色金属地质研究所，《地质与勘探》编辑部 |
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| 摘 要： | 矿床产于Ｆ１与Ｆ２两个北北东向大断裂所夹持的次级北东向构造裂隙中，其特点是：伟晶岩的分异作用不好，脉体内不具分带现象，脉体即是矿体，稀有元素矿化与分异作用的好坏无关，含挥发分和稀碱金属矿物少，稀有元素矿化（和锡、钨）均与伟晶岩晚期结晶的钠长石有密切关系，矿田内伟晶岩脉具水平分带现象。
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| 关 键 词： | 钽 铌 铍 矿床地质 花岗伟晶岩 |
Characteristics of Ta-Nb-Be Granite Pegmatite Deposit in some Area of Guangxi |
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| Li Renke Zhang Xuming.Characteristics of Ta-Nb-Be Granite Pegmatite Deposit in some Area of Guangxi[J].Geology and Prospecting,1995,31(6):15-22. |
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| Authors: | Li Renke Zhang Xuming |
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| Institution: | Li Renke Zhang Xuming |
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| Abstract: | The deposit is enriched in NE secondary-order structural cracks between tow NNE large fractures,i.e.F_1 and F_2. Thecharacteristics are:(1)the differentiation is poor, there are not zoning phenomena in pegmatitic veins.(2) Rare element mineral-ization is not related with differentiation,veins are ore bodies.3)Volatile components are poor. (4)Besides early Be mineraliza-tion, Ta, Nb, Zr, Hf, Be(in late stage),Sn , Wn mineralization are closely related with late crystallized albite.(5)There areobvious horizontal zoning phenomenon. |
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| Keywords: | Ta-Nb-Be granite pegmatite geofogical characteristics criteria for ore prospecting Guangxi |
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