山西沁水煤田煤中铀的含量分布特征及开发前景研究

煤型铀矿的合理开采和综合利用,对于缓解我国天然铀供需矛盾具有重要意义。山西组煤层中的铀含量(3.00×10^-6)小于太原组煤层的值(4.96×10^-6)。同时,山西组1号煤、4号煤中铀含量大于3(2)煤中铀含量;太原组15号煤中铀含量最小,其它煤层煤中铀含量有从上到下增加的趋势。对于沁水煤田煤中铀的富集成矿,应重点关注煤田东南部长子-高平区域,铀在该区域的3(2)号煤层和15(9+10)号煤层中均有富集,总预测量达67141t,成矿前景良好,另外,煤田东北部寿阳区域煤中铀资源也较为丰富。

Study on Coal Uranium Content Distribution Features and Exploitation Prospect in Qinshui Coalfield,Shanxi

Reasonable exploitation and comprehensive utilization of coal uranium ore has significance to relieve natural uranium supply and demand conflict in China.Uranium content in Shanxi Formation coal(3.00×10^-6)is less than in Taiyuan Formation coal(4.96×10^-6).Moreover,uranium content in Shanxi Formation coal No1 is higher than in coal No.3(2),while in the Taiyuan Formation coal No.15 is the least;in other coal seams,uranium content has increasing trend from top to bottom.With regard to coal uranium enriching and ore-forming in the Qinshui coalfield,attention should be focused on the coalfield southeastern part Zhangzi-Gaoping region,where in coal Nos.3(2)and 15(9+10)are all have uranium enriched,total predicted resources can be 67,141t,thus has good ore-forming prospect.Besides,coalfield northeastern part Shouyang region also has abundant coal uranium resources.