乌库尔其层间氧化带砂岩型铀矿床磁场特征及解释  

Magnetic field characteristics and geological explanation for interlayer oxidation zone sandstone type uranium deposit in Wukuerqi

作　　者：陈虎[1] 付锦[2] 龚育龄[1] 赵宁博[2] 张凯[1] 

机构地区：[1]东华理工大学,南昌330013 [2]核工业北京地质研究院,遥感信息与图像分析技术国家重点实验室,北京100029

出　　处：《世界核地质科学》2015年第1期39-45,共7页World Nuclear Geoscience

摘　　要：层间氧化带砂岩型铀矿床覆盖层较厚,地表异常信息微弱,找矿十分困难。通过分析新疆伊犁盆地南缘乌库尔其铀矿床的地面高精度磁测数据资料,发现该区层间氧化带砂岩型铀矿床磁异常特征与其地球化学分带明显相关,根据铀矿成矿地球化学机制结合试验区的航磁资料及实际预测成果,指出铀矿矿化带大致位于磁异常从负值向正值过渡的零值线前端附近。地面高精度弱磁异常是该区铀矿床特征异常之一,可作为一种标志信息运用到铀矿找矿中。The interlayer oxidation zone sandstone type uranium deposit is very difficult to prospect because the cover is thicker and the surface anomaly information is weak. Through the analysis on high precision ground magnetic survey data of Wukuerqi uranium deposit in the southern Yili basin in Xinjiang, we found that the interlayer oxidation zone sandstone type uranium deposits is obviously correlated to the geochemical zonation and magnetic anomalies. According to the uranium ore-forming geochemical and aeromagnetic data of the test area, the uranium mineralization belt is located approximately in the zero line near the front from negative to positive value of the magnetic anomaly.Therefore, the weak anomalies of high precision ground magnetic survey is the characteristic of interlayer oxidation zone sandstone type uranium deposits and can be used as a symbol for the uranium exploration.

关 键 词：地面高精度磁测 砂岩型铀矿 零值线 

分 类 号：P318.41[天文地球—固体地球物理学] P619.14[天文地球—地球物理学]