摘要
对库捷尔太和乌库尔其铀矿床进行了详细的层间氧化带的分带研究,在此基础上分析了主要元素Si,Al,Fe在层间氧化带各亚带中的迁移规律。研究表明,被认为稳定元素的Si,Al在砂岩层间氧化过程中具有明显的变化规律:Si在氧化带具迁出特征,并随氧化作用的减弱而迁出的份额有规律的减少;而Al的地球化学行为则相反。不同的SiO2 /Al2 O3
Based on the detailed subzone division for Kujiertai and Wukuerqi uranium deposits, this paper studies the migration regularities of major elements in various subzones of interstratified oxidized zone. Some major elements including SiO_2 and Al_2O_3 appear relatively active during the interstratified oxidation. However, such phenomenon has not been traced enough previously in literature. Si has a migration out behavior and its contents in the host rocks regularly decrease with intensifying oxidation. On the contrary, the Al contents regularly increase with intensifying oxidation. The relationship between Si and Al shows that different SiO_2/Al_2O_3 ratios can indicate if the interstratified oxidized zone is ore-bearing or ore-barren.
出处
《高校地质学报》
CAS
CSCD
北大核心
2005年第1期77-84,共8页
Geological Journal of China Universities
基金
国家重点基础研究发展规划 (2 0 0 3CB2 14 60 4)
国家自然科学基金 (4 0 173 0 3 1)
高校博士点基金 (2 0 0 2 0 2 840 3 6)资助项目
关键词
砂岩型铀矿
层间氧化带
主要元素
含矿性
Sandstone type uranium deposit
interstratified oxidized zone
major elements
orebearing capacity
