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阳泉北部铌钽矿地球化学特征
发布人:网站管理员 发布时间:2023/7/20 点击次数:13次
  

阳泉北部铌钽矿地球化学特征
王波涛,马建忠,雷鹏,贾宏飞,王明明
(中国冶金地质总局三局,山西 太原 030000)
摘要: 盂县下社—鹤山铌钽矿预查为山西省国土资源厅2014 年度地质勘查项目,通过对测区开采1/10 000 地质草
测、1/2 000 岩石地球化学测量及少量地表工程,系统统计了该地区花岗伟晶岩、花岗岩、黑云斜长(二长)片麻岩、斜
长角闪岩、片麻状花岗岩中Nb 元素、Ta 元素、Rb 元素的分布规律。分析认为,铌钽异常表现为与花岗伟晶岩成正向关
系,且Rb 元素与Nb 元素、Ta 元素之间呈正相关。概述了该地区铌钽矿为花岗伟晶岩类矿床,希望能为稀有金属矿研
究薄弱的山西地区提供借鉴。
关键词: 铌钽矿;岩石地球化学;盂县
中图分类号: P591      文献标志码: A      文章编号: 2095-0802-(2023)06-0017-03
Geochemical Characteristics of Niobium-tantalum Mine in Northern Yangquan
WANG Botao, MA Jianzhong, LEI Peng, JIA Hongfei, WANG Mingming
(No.3 Bureau of China Metallurgical Geology Bureau, Taiyuan 030000, Shanxi, China)
Abstract: Pre-survey of Xiashe-Heshan niobium-tantalum mine of Yu County is an annual geological exploration project of
Shanxi Land and Resources Department in 2014. Through surveying 1/10 000 geological grass, 1/2 000 rock geochemistry and a
small amount of surface engineering, the distribution of Nb, Ta and Rb elements in granitic pegmatites, granites, biotite
plagioclase (monzonite) gneisses, amphibolite and gneissic granites in this area was systematically studied. It is considered that
Nb-Ta anomaly is positively related to granitic pegmatite, and Rb is positively related to Nb and Ta elements. It was summarized
that the niobium-tantalum deposit in this area is a kind of granitic pegmatite deposit, which can be used for reference in Shanxi
province where the study of rare metal deposit is weak.

Key words: niobium-tantalum mine; rock geochemistry; Yu County