Abstract：The study area is located in the Xiazhuang uranium orefield. The intersection-type high-grade uranium deposits are controlled by tracks of intersection faults and lithology of diabase dykes. The task of this study was focused on finding the concealed diabase dykes. This is because uranium is a non-magnetic mineral, but diabase dykes have strong magnetization. Ground high-precision magnetic data show that the amplitude of the anomalies is between plus-minus dozens of nanotesla. The position of diabase is difficult to judge by planar contours of total-field anomaly, but it well corresponds to the positive value of the 0 degree horizontal first derivative.
李曼, 方根显, 张志勇, 曹俊昌. 地面高精度磁测在交点型铀矿勘探中的应用[J]. 物探与化探, 2012, 36(3): 356-359.
LI Man, FANG Gen-xian, ZHANG Zhi-yong, CAO Jun-chang. THE APPLICATION OF GROUND HIGH-PRECISION MAGNETIC SURVEY TO THE EXPLORATION OF INTERSECTION-TYPE URANIUM DEPOSITS. Geophysical and Geochemical Exploration, 2012, 36(3): 356-359.
[1] Babu V R, Ram S, Sundararajan N. Modeling and inversion of magnetic and VLF-EM data with an application to basement fractures:a case study from Raigarh, India[J].Geophysics,2007,72(5):133-140.[2] 李秀珍,黄志章,韩泽宏,等.辉绿岩中的铀矿床蚀变分带研究//中国核科技报告.北京:原子能出版社,1998:1-12.[3] 江民忠,李名松,谢迎春,等.地浸砂岩型铀矿床微磁异常研究及其找矿意义[J].地质科技情报,2003,22(3):49-54.[4] 王志宏,杨进,山科社.CSAMT在可地浸砂岩型铀矿勘查中的应用[J].物探与化探,2005,29(3):227-229.[5] 方根显,龚育龄,刘庆成.土壤磁性与可地浸砂岩型铀矿关系初探[J].物探与化探,2004,28(5):421-424.[6] 韩绍阳,柯丹,候惠群,等.砂岩型铀矿弱信息提取及综合评价方法技术研究[J].世界核地质科学,2004,21(4):215-226.[7] 赵希刚.综合物化探方法勘探层间氧化带砂岩型铀矿[J].物探与化探,2001,25(1):14-21.
