Estudio geoeléctrico del sistema acuífero de la Cuenca de México

Abstract

The geoelectrical characterization of an aquifer system with a complex geological framework such as the Basin of Mexico requires a good correlation between the stratigraphy and the resistivity values. Two geoelectric groups prevail, whose resistivity ranges difficult the geological identification of its components. The basin fill is composed of sedimentary material (lacustrine sediments, alluvia, ashes, sands and gravels) within a container of igneous material (basalt, rhyolite, dacyte). In the study area 12 geological units, all of them related to the aquifer system, were characterized geoelectricaly. This was achieved through a geoelectrical profile W-E consisting of 70 VES's with electrodical distan ces AB = 1.2, 1.6 and 2.0 km. The VES's were distributed in the central part of the basin investigated along l05 km.