摘要
曹窑以西煤下铝矿床位于豫西陕(县)—渑(池)—新(安)铝土矿成矿带上,该区铝土矿成矿条件良好,已发现多个大中型铝土矿矿床。但对铝土矿伴生轻稀土、锂、镓等矿产的成矿规律及资源潜力研究略有不足,为进一步研究豫西陕—渑—新成矿带铝土矿伴生“三稀”矿产的成矿规律及资源潜力,本文在曹窑以西煤下铝矿区普查、详查(五门沟、柴洼、关底沃、扣门山、黄漫、青阳沟矿段)资料的基础上,系统采集矿区钻孔内铝土矿及围岩148件样品进行分析研究等工作,重点研究两者相关性,轻稀土、锂、镓分布规律及与铝土矿厚度关系等。研究结果表明:区内含铝岩系轻稀土、锂、镓等矿化明显;“三稀”元素在垂向上主要在铝土矿中富集,且与铝土矿埋深无明显关系;Al_(2)O_(3)和TiO_(2)、Ga、Li均呈正相关,与REE呈负相关;矿区内初步资源量估算,轻稀土资源量为127512.23 t,镓资源量为12230.61 t,氧化锂资源量为28412.55 t。综合认为陕—渑—新铝土矿成矿带“三稀”资源潜力较大。
The undercoal aluminum deposit west of Caoyao is located in the Shaan(xian)-Mian(ci)-Xin(an)bauxite metallogenic belt in western Henan Province.The bauxite metallogenic conditions are good in this area,and several large and medium-sized bauxite deposits have been found.However,the metallogenic regularity and resource potential of light rare earth,lithium,gallium and other minerals associated with bauxite are not well studied.In order to further study the metallogenic regularity and resource potential of the"rare earth,rare metal and rare-scattered"minerals associated with bauxite in the new metallogenic belt of Shanxi Province,this paper,based on the general survey and detailed investigation of the subcoal aluminum mining area west of Caoyao(Wumengou,Chaiwa,Guadiwo,Koumenshan,Huangman,Qingyanggou ore section),148 samples of bauxite and surrounding rock in the borehole of the mining area were systematically collected for analysis and research,focusing on the correlation between the two,the distribution of light rare earth,lithium and gallium and the relationship between the thickness of bauxite.The results show that the mineralization of light rare earth,lithium and gallium in aluminium-bearing rock series is obvious.The"rare earth,rare metal and rare-scattered"elements are mainly enriched in the vertical bauxite,and there is no obvious relationship with the buried depth of bauxite.Al2O3 was positively correlated with TiO_(2),Ga and Li,and negatively correlated with REE.The preliminary resources in the mining area are estimated to be 127512.23 t of light rare earth resources,12230.61 t of gallium resources and 28412.55 t of lithium oxide resources.It is concluded that Shaan(xian)-Mian(ci)-Xin(an)bauxite metallogenic belt has great potential of"three rare"resources.
作者
董化祥
谢祥
禹明高
陈勇
DONG Huaxiang;XIE Xiang;YU Minggao;CHEN Yong(The Sixth Geological Brigade of Henan Nonferrous Metals Geology and Mineral Resources Bureau,Zhengzhou 450016,Henan,China;Henan Sixth Geological Brigade Co.,Ltd.,Zhengzhou 450016,Henan,China;Henan Natural Resources Science and Technology Innovation Center(Research on the Reuse of Abandoned Mines),Zhengzhou 450016,Henan,China)
出处
《矿产勘查》
2023年第9期1641-1651,共11页
Mineral Exploration
基金
河南省铝土矿及伴生“三稀”矿产成矿规律研究(JTZDKY202305)资助。
关键词
三稀
铝土矿
煤下铝
陕—渑—新铝土矿带
豫西
rare earth,rare metal and rare-scattered
bauxite
aluminum under coal
Shaan(xian)-Mian(ci)-Xin(an)bauxite belt
