江西大吉山钨矿床品位概率分布型式及其地质意义
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  • 英文篇名:Grade Probability Distribution Modes and Their Implication of Dajishan Tungsten Deposit
  • 作者:张立东 ; 吴开兴 ; 曾强 ; 廖泽忠 ; 曹平生 ; 刘才平
  • 英文作者:ZHANG Lidong;WU Kaixing;ZEN Qiang;LIAO Zezhong;CAO Pingsheng;LIU Caiping;Jiangxi Dajishan Tungsten Industry Co.,Ltd.;School of Resources and Environmental Engineering,Jiangxi University of Science and Technology;Jiangxi Piaotang Tungsten Industry Co.,Ltd.;
  • 关键词:大吉山 ; 石英型钨矿床 ; 蚀变花岗岩型钨矿床 ; 品位概率分布型式
  • 英文关键词:Dajishan;;quartz-vein type tungsten deposit;;altered-granite type tungsten deposit;;grade probability distribution mode
  • 中文刊名:ZGWU
  • 英文刊名:China Tungsten Industry
  • 机构:江西大吉山钨业有限公司;江西理工大学资源与环境工程学院;江西漂塘钨业有限公司;
  • 出版日期:2017-10-31
  • 出版单位:中国钨业
  • 年:2017
  • 期:v.32;No.261
  • 基金:国家自然科学基金项目(41602335)
  • 语种:中文;
  • 页:ZGWU201705002
  • 页数:8
  • CN:05
  • ISSN:11-3236/TF
  • 分类号:14-21
摘要
大吉山钨矿床是我国著名的大型钨多金属矿床,以外接触带石英脉型W-Mo-Bi矿体为主,兼具内接触带蚀变花岗岩型Ta-Nb-W-Be矿体,是南岭"五层楼+地下室"或"上脉下体"型钨矿床的典型代表。大吉山钨矿床品位的概率分布型式研究表明,无论是脉状矿体,还是蚀变花岗岩型矿体,WO_3品位均呈现出分布范围宽、低品位频数高、高品位频数低,即接近对数正态分布的概率分布型式,这暗示其钨成矿过程均较复杂,均受多种地质作用和/或物理化学条件控制。
        Dajishan tungsten deposit is a well-known large-scale tungsten polymetallic deposit in China for it is also a typical example of "five-floor + basement" or "upper veins + underneath mineralized granite" tungsten deposit, in which wolframite primary occurs in W-Mo-Bi mineralized quartz veins but also in Ta-Nb-W-Be mineralized granite. It is showed by study of grade probability distribution mode that WO_3 grades are wide in range, and high frequency in low grades and low frequency in high grades, namely, approximately in a lognormal distribution mode for both ore veins and mineralized granite. It implies that their ore-forming processes are complicated and might be controlled by several geological processes and/or physiochemical conditions.
引文
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