赣南鹿井矿田铀成矿远景预测

The Uranium Mineralization Vision Prediction in Lujing Uranium Ore Field of Jiangxi

鹿井地区铀矿勘查工作始于1958年,至20世纪90年代结束,已落实为鹿井铀矿田。2009~2012年间核工业270研究所在该区开展了铀成矿潜力评价及普查找矿工作,取得了一系列的勘查成果。介绍了鹿井铀矿田的地质概况及地球物理场和地球化学场特征。重点介绍了区域布格重力场特征;区域航磁异常特征;航空伽玛能谱场特征。根据遥感影象资料,认为丰州盆地正好处在一个大的环形构造中,而且在盆地西北部,也可清晰的见到较小的环形构造。结合环形构造的边缘分布有花岗岩杂岩体,鹿井矿田铀矿床与火山塌陷中的环状花岗岩杂岩紧密相伴,铀矿体主要分布在环状杂岩体顶部、旁侧等接触变异部位。丰州盆地具有较好的铀成矿远景。

The uranium exploration work begin from 1958 to the 1990 s in Lujing-area,already implement to Lujing uranium ore-field. From 2009 to 2012,the nuclear industry 270 research institute carried out uranium metallogenic potential evaluation and census prospecting work and achieved a series of exploration achievements. This paper introduces the uranium geological survey of Lujing-ore field,the geophysical characteristic and the geochemical characteristic,introduces the regional bouguer gravity field characteristic,Regional aeromagnetic anomaly characteristics; air gamma energy spectrum field characteristics. According to the remote sensing image data,it is thought that the abundant state basin was in a big ring structure,and also can clearly see the smaller ring structure in northwest of the basin. Around the ring structure of marginal distribution have granite mixed rock mass,Lujing ore field uranium deposits and volcanic collapse of the annular granite complex closely associated,uranium ore body is mainly distributed in the annular mixed rock top,flanking and contact variation position. Abundant state basin has good uranium mineralization vision.