Аннотация:Self potential (SP) anomalies of diffusion-adsorption (DA) origin frequently considered as filtration (F) anomalies that is the case of false discovery. On the earth surface DA anomalies are widespread while filtration anomalies are more rear. To distinguish these anomalies we can consider correlation of SP potential and apparent resistivity values along the same profile. In case of DA anomalies there is linear correlation between SP potential and logarithm of apparent resistivity.