甘肃国宝山铷矿床矿石特征研究*
The Study of Ore Characteristics in the GuobaoshanRb Deposit, Gansu Province, China
投稿时间:2015-09-28  修订日期:2015-09-28
DOI:
中文关键词:  铷矿  矿石特征  国宝山  甘肃
英文关键词:Rb  ore, Ore  characteristics, Guobaoshan, Gansu
基金项目:
作者单位E-mail
赖杨 中国地质科学院 矿产综合利用研究所 772459504@qq.com 
田恩源   
杨磊   
李丹峰   
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中文摘要:
      国宝山铷矿床位于甘肃省瓜州县境内,矿(化)体主要赋存于石炭纪侵入的二长花岗(伟晶)岩和含天河石钠长花岗(伟晶)岩中,并严格受岩性控制。该矿床的规模已达超大型,并伴生多种稀有金属元素(如Li、Nb、Ta等)。矿石成分主要有钠长石、石英、微斜长石(天河石、钾长石)、(锂)云母、角闪石,以及少量黄玉、(铁)锰铝榴石、钽铁铌锰矿、锡石、锆石、钍石、独居石等。矿石构造以块状构造为主,及少量条纹、豆粒斑点团块等构造;矿石结构主要有花岗结构、似斑状结构、自形晶粒状结构、包含结构、揉皱结构等。据多种分析测试方法,查明原矿中铷的含量为0.124%,铷元素在本矿区可能以类质同像的方式主要赋存于微斜长石(钾长石)和(锂)云母中,其分布率分别为71.13%和28.09%,在其他矿物中含量甚微。该研究成果可为今后矿床的勘探、开发及矿产资源综合利用提供基础参考资料。
英文摘要:
      The Guobaoshan Rb deposit is located in Guazhou county of Gansu province. Ore (mineralized) bodies mainly hosted in carboniferous intrusive monzonitic granite (giant crystal) rock,albite granite (giant crystal) rock containing the amazonite, and strictly controlled by lithology. The Rb deposit scale has reached very large, and associated with a variety of rare metal elements (e.g., Li, Nb, Ta, etc.). Mineral composition are mainly sodium feldspar, quartz, microcline (amazonite, potassium feldspar), mica (lithium), hornblende, and a small amount of topaz, spessartine (iron), tantalum-iron-niobium manganese ore, cassiterite, zircon, thorium, monazite, etc. Ore structures are given priority to with massive, and a small amount of stripes, pea spots mass; Ore textures are mainly granite hypautomorphic crystal, euhedral crystal, including, crumpled, etc. According to a variety of analysis methods, find out the content of Rb element in raw ore is 0.124%, the Rb element maybe mainly hosted in microcline (potassium feldspar) and mica (lithium) in the form of isomorphism in this mining area, the distribution rate of the Rb element respectively is 71.13% and 28.09%, and the content of Rb element of other minerals are very low. The research results can provide the foundational data for the exploration of ore deposits and the comprehensive utilization of mineral resources in the future.
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