Caracterización geológica e hidrogeológica de la cuenca alta del río Cutuchi : PIM-20-03: recursos hídricos subterráneos en el área de Mulaló: Estudio hidrodinámico e hidrogeoquímico, identificación de zonas peligrosas de contaminación y remoción de metales pesados ​​mediante materiales y compuestos nanoestructurados.

Abstract

This study focuses on the geological and hydrogeological characterization of the upper basin of the Cutuchi River, located in the province of Cotopaxi, with the aim of making a geological map at a scale of 1:250,000 and discriminating the possible aquifer systems present within the basin from observations made in the field and laboratory. The geological description was based on the sampling of 58 points, in which the outcrop was described, also rock and sediment samples were taken. The rock samples were used for macroscopic and microscopic description. The sediment samples were used to determine the deposits granulometric distribution, considering particles between 1 and 0.5 mm for the quantitative ash analysis. The hydrogeological analysis was carried out based on the packing, sphericity, selection and cementation of the Formations. It was defined that the basin is made up of pyroclastic deposits associated with the Cotopaxi, Los Ilinizas and Chalupas volcanoes located on the volcanic to fluvio-lacustrine sequences of the Latacunga Formation. The presence of several aquifer levels distributed among the pyroclastic deposits of the Cotopaxi, Los Ilinizas and Chalupas volcanoes was determined. These deposits are characterized by intercalations of lapilli and ash that imply a variation in grain size, and therefore in porosity, resulting in the presence of various aquifer levels.