Resolution of MRS applied to the characterization of hard-rock aquifers.

摘要: The performance of the Magnetic Resonance Sounding (MRS) method applied to investigation heterogeneous hard-rock aquifers was studied. It shown using both numerical modeling and field measurements that MRS could be weathered part when product free water content multiplied by thickness aquifer is >0.2 (for example, 10-m-thick layer with a 2% content). Using currently available one-dimensional system, allows characterization two-dimensional subsurface structures acceptable accuracy size anomaly equal or greater than loop. However, fractured characterized low effective porosity (<0.5%) cannot resolved equipment. found shallow in may screen signals from deeper water-saturated layers, thus further reducing possibility investigating aquifers. A study NUMISplus system developed IRIS Instruments carried out on an experimental watershed southern India. unconfined gneissic formation successfully localized, results were confirmed drilling shortly after geophysical study. top revealed good agreement observed static level boreholes.