摘要
以相山地区为例,应用地气、地面伽马能谱、210Po、热释光4种放射性勘探方法进行综合找矿。分别介绍了这4种方法在野外的工作方法及室内的样品处理,对野外和室内得到的数据分别用传统统计、分形2种方法提取异常,对比了2种方法异常提取效果,认为分形法要优于传统统计法,分形能识别出测区中的更多微弱异常。同时比较了各放射性勘探方法在相山地区铀矿找矿中的应用效果,地气法所圈定的异常区域和已知成矿有利区对应最多;能谱方法由于探测深度较浅,易受到地面活动的干扰,圈定的异常范围过大,不利于后期查证;210Po和热释光法圈定异常区域和已知成矿有利区基本没有对应,其圈定的几处异常区域还有待进一步查证。
Taking Xiangshan area as an example, four kinds of radioactive prospecting methods, namely ground gas, ground gamma spectrum,210 Po and pyrolytic light, were used for comprehensive ore prospecting. Respectively introduces the four methods in the field work method and sample processing, indoor to outdoor and indoor data using traditional statistical respectively, two methods to extract fractal anomaly, anomaly extraction effect, compares the two methods that the fractal method is superior to traditional statistical method, the fractal can identify more weak anomalies in the part of the surveyed area. At the same time, the application effects of various radioactive exploration methods in uranium prospecting in Xiangshan area are compared. The energy spectrum method is easy to be disturbed by ground activities due to its shallow detection depth, and the delineated abnormal range is too large, which is not conducive to the later verification. There is basically no correspondence between the210 Po and thermoluminescence delineated abnormal areas and known favorable areas for mineralization, and several of the delineated abnormal areas need to be further verified.
作者
杨栋才
YANG Dongcai(East China University of Technology,School of Geophysics and Measurement-control Technology,Nanchang 330013,China)
出处
《能源研究与管理》
2020年第3期100-105,共6页
Energy Research and Management
