摘要
吴家湾铝土矿床位于黔北-渝南铝土矿成矿带北部,是重庆市铝土矿的重要组成部分。采用X射线荧光光谱法对铝土矿矿石及其含矿岩系中的伴生元素Sc进行分析,结果表明,吴家湾铝土矿含矿岩系Sc含量为(14.4～50.5)×10-6,平均30.42×10-6(n=82);Sc在含矿岩系底部的普通粘土岩和高岭石粘土岩中含量较高,在铝土矿矿石和铝土质粘土岩中含量较低;铝土矿矿石中,Sc含量变化与SiO2呈弱的正相关关系,与A/S呈弱的负相关关系;粘土岩中,Sc含量与A12O3呈弱的负相关关系,与TFe2O3呈弱的正相关关系。重庆市铝土矿资源丰富,其伴生元素Sc在铝土矿冶炼过程产生的赤泥中更为富集,这些伴生元素潜在的经济价值巨大,甚至超过主导产品氧化铝的价值。开展铝土矿中Sc等有益伴生元素的研究,不仅可以推动重庆市氧化铝工业高新技术的发展,而且为渝南中、低品位铝土矿的综合利用和后续研究提供新的参考依据。
The Wujiawan bauxite deposit,which is one of the important bauxite deposits in Chongqing,locates in the north part of the southern Chongqing-Northern Guizhou Metallogenic Belt.The X-ray spectrometry study of associated elements reveal that the Sc contents range from 14.4 to 50.5×10-6 with an average of 30.42×10-6（n=82）.The Sc contents are higher in clay stones and kaolinite clay stones than in bauxite ores and Aluminum clay rocks.In bauxite ores,Sc contents positively correlate with SiO2 and negatively correlate with A/s;while in clay stones,Sc contents negatively correlate with A12O3 and positively correlate with TFe2O3.Chongqing has abundant Bauxite resources.To comprehensively utilize bauxite and to pay more attentions in latent economic values of bauxite are important to the economic development of Chongqing.
出处
《矿物岩石地球化学通报》
CAS
CSCD
北大核心
2013年第4期468-474,共7页
Bulletin of Mineralogy, Petrology and Geochemistry
基金
中国地质调查局项目(1212011085167)
关键词
铝土矿
钪
伴生元素
分布规律
吴家湾
bauxite
Scandium
associated elements
distribution regularity
Wujiawan
