Evaluación del Potencial Micropaleontológico en la zona de la Falla Panteón-Parroquia Yamana -Loja

Abstract

Abstract: According to the detailed study within the polygon of the Falla Panteón sector, the sediments that come from the Río Playas Formation of sedimentary composition were analyzed, using sedimentological, lithostratigraphic and paleontological methods.This Formation presents different lithologies, which have been transported by fluvial agents with contributions from relics from different sources such as the Célica Volcanic Arch and the Amotape Tahuín Block. Presents cyclical sequences of siltstone strata, clays, conglomerates the same that come from distant sources of contribution, likewise the presence of strata of fine to medium grain sandstones where the high content of silica is evidenced, as well as the varied presence of autogenic and lithic minerals from surrounding formations.The results obtained through the mineralogical analysis in the sandstones have made it possible to establish the majority presence of SiO2, with respect to the minimum percentage of carbonates found in the matrix of the sandstones that come from continental contributions of fluvial origin. Within the micropaleontological analyzes, the presence of microfossils belonging to the Foraminifera family was established.