Method and system for determining favorable area of sand body of sandstone type uranium deposit

The invention discloses a method and a system for determining a favorable area of a sand body of a sandstone type uranium mine. The method comprises the following steps: calculating an electromagnetic attribute characteristic value of electromagnetic data collected in a metallogenic distant view area; arranging the electromagnetic attribute characteristic values according to the point number sequence of the electromagnetic measuring points to obtain a result profile, and determining multi-level attribute characteristic values according to the result profile; assigning different colors to the multi-level attribute feature values to obtain a plurality of color maps, and superposing the plurality of color maps to obtain a superposed map; determining the position of a redox transition zone according to the superposition graph; and determining a sandstone type uranium mine sand body favorable area in the redox transition zone according to the color of the resistivity attribute characteristic value. According to th