Levantamiento geológico, estratigráfico y estructural de la parroquia Macas.

Abstract

The present investigation proposes: to carry out the geological, stratigraphic and structural data collection of the Macas parish at a scale of 1: 20,000; In addition, the geological profile of the study area as base information for future engineering projects. The lack of geological information ofthe urban and rural areas ofthe project area, does not allow an adequate use ofthe soils and causes a poor planning of the areas of urban expansion. Field work was carried out in the study area located in the Macas parish, where it was observed that it is constituted by 2 geological formations and 1 geological unit, such as the Mera formation, the Hollín formation and the Upano unit. Lithologically, the study area is composed of volcanic and colluvial deposits belonging to the Mera formation; quartzites, quartz sandstones and siltstones of the Hollín formation; black shales coffees and black slates of Upano Unit; Geomorphologically there are five types of structures which are: Upano Rift, Volcano-sedimentary Plateau, Fluvial Valleys, Falla Escarpes and Sub-Andean Reliefs; structurally it can be appreciated three important inverse faults that cross the study area in NS direction, the most important fault is the regional fault that passes through the area ofthe sub-Andean relief, following the alignment ofthe eastern flank of the Cordillera Real, product ofthe abrupt movements ofthe rise ofthe mountain range and minor faults that cut perpendicularly to these main faults. It is concluded that a study should be carried out with core recovery holes to determine the true potencies ofthe geological formations of the Macas parish, Geotechnical studies to know the composition and mechanical properties of the soils and the implementation in the GAD of a repository with all the technical projects developed by public institutions.

Keywords: GEOLOGICAL DATA COLLECTION, STRATIGRAPHICAL DATA COLLECTION - STRUCTURAL DATA COLLECTION - GEOLOGICAL PROFILE - GEOLOGICAL FORMATIONS -GEOMORPHOLOGY.