广西栗木锡铌钽矿床地球化学分带模型与找矿评价标志  

GEOCHEMICAL ZONING MODEL AND ORE-SEARCH ASSESSMENT INDICATORS OF LIMU Sn-Nb-Ta ORE DEPOSIT,GUANGXI

作　　者：姚锦其[1] 李惠[2] 

机构地区：[1]成都理工大学能源学院 [2]中国冶金地质勘查工程总局地球物理勘查院,河北保定071051

出　　处：《矿物学报》2008年第2期221-226,共6页Acta Mineralogica Sinica

基　　金：广西“新世纪十百千人才工程”资助项目(编号:2004221)

摘　　要：从找矿地球化学角度,依据栗木锡铌钽花岗岩型矿床的分带、元素异常组合、平均含量和比值的垂直变化特征,综合建立了矿床地球化学分带模型,指出了F、Li、Be、W、Sn、Nb、Ta、Cu、Mo、Bi、Ti是寻找该类矿床的有效指标,总结了矿体前缘、近矿和矿尾的异常组合、强度及比值等地球化学评价标志。In this paper, a zoning model of ore deposit geochemistry is synthetically established from the facet of exploration geochemistry based on zoning of the granite-type deposits, in combination of anomalies of different elements, vertical variations of average contents and ratios. It is concluded that F, Li, Be, W, Sn, Nb, Ta, Cu, Mo, Bi, Ti are effective indices for exploring this type of ore deposits. And several geochemical evaluation indicators, such as the combination of anomalies, intensity, ratio, and so on, are described and summarized to analyze the front, nearby area and tails of the ore body.

关 键 词：锡铌钽矿 矿床分带 异常组合 异常分带模型 找矿评价标志 广西栗木 

分 类 号：P618.2[天文地球—矿床学] P632[天文地球—地质学]