Caracterización del ambiente geológico y cartografía escala 1:5000 de la quebrada El Volcán de la ciudad de Loja

Abstract

Abstract: The present research work was carried out in the city of Loja, the El Paraíso neighborhood, in the El Volcán water basin, the recording and interpretation of the different lines and structures in the field for the purpose of mapping this sector. The real objective of the research work is the mapping and characterization of the geological environment of the El Volcán stream, for which simultaneous work was necessary in the field and the office progressively developed in several pre-established stages, contributing with new information for an understanding of the geology of this area.The results obtained in this study show that the rocks found in the study area are classified into four. Lithological members according to characteristics identified as, protolith, paragenesis and facies, associated minerals, micro and meso deformation, observed in the field. In addition, it proposes a geological model to explain the relationship of the El Volcán Unit with the Chigüinda Unit, which would be a system of cavalcades accompanied by dextral faults of inverse component with an angle no greater than 20° that causes deformed sediments of the Chugüinda Paleozoica unit ride on the volcanic facies and sedimentary volcanoes of the volcano and its surroundings proposed as of possible Triassic age (?)