The Surface Proton Magnetic Resonance method (PMR) was proposed by Varian in 1962. It allows a noninvasive detection of subsurface proton-containing liquids and particularly of water. The method is direct, and hence the fact of existence or absence of the PMR signal tells us (also directly) whether there is water in the subsurface or not. Only the amplitude of the signal is to be analysed in this case. Using groundwater as a natural tracer geological anomalies could be detected with PMR. For example, the fault which separates a reef limestone and fractured sandstone areas was crossed by a PMR profile in Cyprus. 5-6 folds variations in the PMR parameters were observed along this profile. The fault position derived from PMR results is in good agreement with geological data.


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