滇东南铝土矿床共生矿产及伴生矿产研究
Research on Coexisting ores and Associated ores of the Bauxite deposit, Southeast Yunman Province
投稿时间:2014-04-08  修订日期:2014-04-08
DOI:
中文关键词:  滇东南  铝土矿床 共生矿产  伴生矿产
英文关键词:Southeast  Yunnan province  Bauxite deposit  Coexisting ore  Associated ore
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作者单位邮编
王行军 河北省地球物理勘查院 065000
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中文摘要:
      滇东南地区铝土矿资源丰富。本文以滇东南主要铝土矿床为研究对象,对其中共生、伴生的矿产进行评价。全区含铝岩系TiO2含量平均值为4.58%,明显高于钛原生矿床的边界品位,并且有92.6%的样品分析结果已超过钛原生矿床的边界品位;稀土总量平均值769.10CcCc10-6,接近吸附性稀土矿床的边界品位,其中有45.7%的样品分析结果超过吸附性稀土矿床的边界品位;Nb含量平均值为121.03CcCc10-6,为风化壳型铌矿床的边界品位的2倍多,并且有84.0%的样品分析结果高于风化壳型铌矿床的边界品位;Ga含量平均值为28.86CcCc10-6,高于铝土矿之中镓的最低工业品位,其中有68.5%样品的分析结果超过了铝土矿之中镓的最低工业品位;Li、Zr含量平均值分别为158CcCc10-6、989CcCc10-6,其中分别有17.9%、5.0%样品的分析结果超过了边界品位。本次研究表明,滇东南铝土矿床之中普遍共生有黑色金属Ti、稀土元素、稀有金属Nb,普遍伴生分散元素Ga并伴生有稀有金属Li、Zr。聚类分析显示,Al2O3与Nb、Zr呈正相关,相关性明显;Al2O3与Ga、LREE、REE、HREE、TiO2、FeOT、Li呈负相关,相关性明显。
英文摘要:
      ion: There is abundant at bauxite resources in southeastern of Yunnan province. This paper takes the primary bauxite deposits in southeastern of Yunnan province as the research object, which evaluate its’ coexisting ores and associated ores. In aluminum-containing rocks of the primary bauxite deposits of southeast Yunman province, the average content of TiO2 is 4.58%, significantly higher than the cut-off grade of Titanium primary deposits. In addition, 92.6 % analysis results of the sample show that it have exceeded the cut-off grade of Titanium primary deposits. The average of REE is 769.10CcCc10-6 , that approachs the cut-off grade of adsorption rare earth deposits, which 45.7% analysis results of the samples have exceed the cut-off grade adsorptive rare earth deposits. The content of Nb is 121.03CcCc10-6, more than two times of cut-off grade of weathering crust type Niobium deposits, and 84.0 % analysis results of the sample is higher than cut-off grade weathering crust type Niobium deposits. The content of Ga with an average of 28.86CcCc10-6, is higher than the lowest industrial grade of Gallium among bauxite , which 68.5% analytical results of the samples have exceeded the minimum industrial grade of Gallium contained in bauxite. The content average of Li is 158CcCc10-6 and Zr is 989CcCc10-6, which 17.9% and 5.0% analysis results of the sample have exceeded cut-off grade. The research shows that primary deposits of southeast Yunnan province is generally coexisted with black metal Ti, rare earth elements and rare metal Nb, as well as is associated with dispersed elements Ga and rare metal Li, Zr. Cluster analysis shows that Al2O3 is positively correlated with Nb and Zr, significantly negative correlation with Ga, LREE, REE, HREE, TiO2, FeOT, and Li; and the correlation is obvious.
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