PHYSICAL IMAGE OF WATER TABLE DETERMINED BY THE ELECTRICAL RESISTIVITY TOMOGRAPHY (ERT) METHOD
Journal Title: Biuletyn Państwowego Instytutu Geologicznego - Year 2013, Vol 456, Issue 456
Abstract
The paper presents the results and interpretation of Electrical Resistivity Tomography (ERT) study of the first aquifer. The study was carried out in the Warsaw region on three selected test fields with different geological structure and hydrogeological conditions: two in the Wisla River valley (“Józefów” and “Tarchomin”) and one in a postglacial upland in Warsaw (“Pole Mokotowskie”). The river valley aquifers are unconfined, whereas in the upland, the first aquifer is confined and under pressure. The results clearly show the presence of aquifers on the ERT image, but the positioning of the water level is not always precise. The precision depends on granulometry of sediments, resistivity contrasts, chosen method of resistivity measurement and morphology of low-resistivity sediments (e.g. Pliocene clays in the Warsaw area).
Authors and Affiliations
Magdalena GAŃKO, Radosław MIESZKOWSKI, Adrian GAŃKO, Piotr TUCHOŁKA
Keywords
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