Nuclear Tracking Tubes technique (NTT) is used to get the radon gradient as a function of depth.
Accordingly, the shape and volume of uraniferous-ore body can be hypothetically determined. Using a grid
net of Nuclear Tracking Tubes, depth and thickness of the uraniferous-ore body are profiled in Wadi Abu-
Ruseid area, Southeast Egypt. The area of study is divided to Northern area (15 station) and Southern
area (12 station). The data was found that radon diffusion is changed exponentially with the height of track
detector from the earth crust. The volume of the southern part is nearly about twice of that of the northern
part. The data through 3D visualization was cleared a global information about the ore body. The estimated
volume of the northern area which containing the ore-body was found 1,449,500 m3 with a roughly depth
70 m, while the data of the southern area is found about 2,347,200 m3 at average depth 81m.