احمدرضا لکزایی - موسسه ژئوفیزیک دانشگاه تهران
افشار ضیاءظریفی - واحد اکتشاف و استخراج سازمان انرژی اتمی ایران
مجید نبی بیدهندی - موسسه ژئوفیزیک دانشگاه تهران
فرخشاد یگانی - واحد اکتشاف و استخراج سازمان انرژی اتمی ایران

The available radioactive elements in the nature, in themselves decay series to other elements, emit alpha, beta and gamma rays that attention to power of penetration of gamma ray is used from this gamma ray measurements, for radiometric exploration of radiometric element specific for uranium. With use taken data of airborne radiometric simply can be studied a large area in a short time and with a little cost. In this paper, at the first, The tables of frequency distribution of uranium and thorium are designed, and then the frequency distribution histograms that are introducer of distribution and dispertion of uranium and thorium are designed. After drawing frequency distribution histograms the statistical parameters of these elements are estimated. then separation of anomaly value are done based dispertion around the average. At the end introduction of anomaly maps and separation of anomaly values and background are prepared on the base of calculations of classic statistics.