Resource quantity estimation method based on mixed overall screening

According to the method, a mixed total screening result is used as a basis for determining an indicated grade threshold value, a fractal method is used for carrying out mixed total screening, an indicated grade interval of MIK is determined according to curve inflection point coordinates, and the goodness of fit 0.95 is used as a basis for determining a fractal interval, so that specific values are eliminated, and finally a grade domain for resource quantity estimation is determined. In addition, when the indication grade domain is finally determined, the fractal mixing overall screening result is improved, the economic boundary grade threshold value is increased, and a corresponding indication variation function model and subsequent MIK estimation are constructed. According to the method, a traditional ten-bit method is improved and optimized on the basis of mixed overall screening, and the reliable method which can reflect the statistical distribution characteristics of samples and indicate geological signi