广东石人嶂钨矿床钨品位统计参数和分形特征及其对矿化信息的指示
投稿时间:2014-05-27  修订日期:2014-05-27  点此下载全文
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作者单位E-mail
黄朝柱 桂林理工大学 广西隐伏金属矿产勘查重点实验室 273644251@qq.com 
陈宏毅 桂林理工大学 广西隐伏金属矿产勘查重点实验室  
韦龙明 桂林理工大学 广西隐伏金属矿产勘查重点实验室 wlm@glite.edu.cn 
孙宁 桂林理工大学 广西隐伏金属矿产勘查重点实验室  
周旻玥 桂林理工大学 广西隐伏金属矿产勘查重点实验室  
基金项目:国家深部探测计划专项(SinoProbe-03-01-03C);全国危机矿山接替资源勘查专项典型矿床研究课题(20109908-1)第一作者黄朝柱,男(1988-),硕士研究生,地质资源与地质工程专业,Email273644251@qq.com通讯作者韦龙明,男(1959-),博士,教授,矿物学、岩石学、矿床学专业,Emailwlm@glite.edu.cn
中文摘要:根据石人嶂钨矿山11个中段的钨品位数据,分别求取各中段钨品位数据的平均值、标准差、变异系数和矿化率,并研究钨品位分形分维值垂向变化特征发现:石人嶂钨矿以598~410m中段为矿化中心;钨品位分形的分维值特征能够有效划分矿化阶段,显示该钨矿床主要经历了三次矿化事件的叠加,其中主要成矿作用发生在黑钨矿-硫化物-石英阶段和锡石-黑钨矿-石英阶段,且前者强于后者;虽然在380~340m中段,分维值D均最小,但仍存在有不少含钨砂包的富矿体,预示该矿床深部还有找矿潜力。
中文关键词:石人嶂  钨品位  统计参数  分形特征  分维值
 
Application of Indicating Function of Parameter Statistics and Fractal Characteristic to Mineralization Information in Shirenzhang Tungsten Deposit in Guangdong Province
Abstract:According to the tungsten grade of 11 middle segments from the Shirenzhang tungsten deposit, the average value, standard deviation, coefficient of variation and average mineralization intensity of tungsten grade are calculated in each middle segment. During studying on the fractal dimension of tungsten grade in the vertical variation, it was found that the 598 ~ 410 m middle segment is the mineralization center of Shirenzhang deposit. The fractal dimension characteristic of tungsten grade can divide mineralization stage effectively, indicating that the tungsten deposits experienced a superposition of three major mineralization events, which occurred mainly in wolframite - sulphide - quartz stage and cassiterite - wolframite - quartz stage, and the former is stronger than the latter. Although the D fractal dimensions are minimal in the 380 ~ 340 m middle segment, there are still a lot of bonanzas containing wolfram, which shows the prospecting potential in the deep section.
keywords:Shirenzhang  tungsten grade  statistical parameters  fractal characteristics  fractal dimension
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