Research on the Extraction Technology of Aero Radioactive Information for Uranium Exploration
Airborne gamma-ray spectrometry survey is a quick and effective exploration method to find hidden uranium deposits.Compared with uranium ore bodies exposed near the surface,the information of ore-induced anomalies caused by concealed uranium ore bodies is relatively weak on the surface.In order to extract the weak anomaly information generated by deep buried uranium deposits on the surface,airborne survey data(1∶50,000)of Xiangshan uranium ore field the were used to extract the weak anomaly information related to mineralization in four indicators:uranium variation coefficient,airborne F parameters,uranium enrichment coefficient,element content and area(CA)fractal.Then the scoring method is used to perform the mineralization prediction in the Xiangshan uranium ore field using the comprehensive information quantitative method.The prediction result shows that the comprehensive information anomalies of the airborne gamma spectrometry are in good agreement with the known ore body's positions,and the correct rate of judging of the known ore deposits is 76.4%.Therefore,the presented technology provided a valuable reference for uranium exploration.
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维普
