13 3 lO 144 p44 Eyld5 iT | | 4 Sb 125 2 1OFr spl2eo Sb Cs: I37 I25 | - 7ne> | 2 5 c s @ Co&9 | | lOF b | : - oO c > ° O-1 O @ z u“ IP 1-2" 9-10" 1O=| Fig. 5. J 05 1 MEV Z |.O 1 [5 Gamma-ray spectra of equal amounts of old soil from different depths. Tay Ate PEUT