Procedencia de las rocas sedimentarias de los cerros Santa Ana y del Carmen mediante análisis geoquímico, Guayaquil-Ecuador
Fecha
2019
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Facultad de Ciencias Naturales. Universidad de Guayaquil
Resumen
El propósito del proyecto fue determinar la procedencia de las rocas sedimentarias mediante análisis geoquímico de los cerros Santa Ana y del Carmen en la ciudad de Guayaquil, Ecuador. En la zona afloran rocas de las formaciones Cayo y Guayaquil. Se observó silicifación en forma veteada, cubierta por una zona de oxidación. Los resultados se obtuvieron a través de la recolección de 15 muestras frescas en las 4 zonas de estudio, las cuales fueron descritas macroscópicamente y bajo la lupa estándar, elaborando una columna preliminar de campo; se les realizó los análisis geoquímicos a 4 muestras clasificadas representativas de cada zona de estudio. Los análisis geoquímicos se realizaron en los laboratorios Inspectorate Service Perú. Se obtuvieron 4 resultados para óxidos mayores y elementos traza, se emplearon diagramas: tipo Dickinson y diagrama spider de Zimmerman. los minerales son calculados a partir de ensayos geoquímicos usando SEDMIN y clasificación química normativa CIPW. Mediante las columnas estratigráficas elaboradas en el software LOGPLOT 7, se verificó el contacto transicional entre la formación Cayo y la formación Guayaquil, dicho contacto se encontró en una de las zonas de estudio.
The purpose of the projet was to determine the origin of the sedmentary rocks hills by means of geochemical analysis of Santa Ana and Carmen in the City of Guayaquil, Ecuador. In the area, rocks of the Cayo and Guayaquil formations appear. Silicificación was observed in veined form, covered by an oxidation zone. The results were obtained through the collection of 15 samples in the 4 study areas, qhichwere described macroscopically and under the standardmagnifying glass, elaborating a preliminary field column; the geochemical analysis was performed on 4 representative samples representative of each study area. The geochemical analyzes were carried out in the Inspectorate Service Peru laboratories. Four results were obtained for major oxides and trace elements, diagrams were used; Dickinson type and Zimmerman spider diagram. Minerals are calculated from geochemical test using SEDMUN and CIPW normative chemical classification. Through the stratigraphic columns elaborated in the software LOGPLOT 7, the transitional contact between the Cayo formation and the Guayaquil formation was verified, this contact was found in one of the study areas.
The purpose of the projet was to determine the origin of the sedmentary rocks hills by means of geochemical analysis of Santa Ana and Carmen in the City of Guayaquil, Ecuador. In the area, rocks of the Cayo and Guayaquil formations appear. Silicificación was observed in veined form, covered by an oxidation zone. The results were obtained through the collection of 15 samples in the 4 study areas, qhichwere described macroscopically and under the standardmagnifying glass, elaborating a preliminary field column; the geochemical analysis was performed on 4 representative samples representative of each study area. The geochemical analyzes were carried out in the Inspectorate Service Peru laboratories. Four results were obtained for major oxides and trace elements, diagrams were used; Dickinson type and Zimmerman spider diagram. Minerals are calculated from geochemical test using SEDMUN and CIPW normative chemical classification. Through the stratigraphic columns elaborated in the software LOGPLOT 7, the transitional contact between the Cayo formation and the Guayaquil formation was verified, this contact was found in one of the study areas.