Estudio geológico estructural a escala 1:25000 de la parroquia Cruzpamba, cantón Celica, provincia de Loja
The Cruzpamba parish is located in the South of Ecuador, province of Loja, canton Celica, and covers an area of 26.79km². Delimited to the north by the San Juan de Pózul and Celica parishes; to the south by the Teniente Maximiliano Rodríguez and Celica parishes; to the east by the Celica parish and...
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| Format: | bachelorThesis |
| Sprog: | spa |
| Udgivet: |
2024
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| Fag: | |
| Online adgang: | https://dspace.unl.edu.ec/jspui/handle/123456789/28700 |
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Tilføj Tag | Summary: | The Cruzpamba parish is located in the South of Ecuador, province of Loja, canton Celica, and covers an area of 26.79km². Delimited to the north by the San Juan de Pózul and Celica parishes; to the south by the Teniente Maximiliano Rodríguez and Celica parishes; to the east by the Celica parish and to the west by the San Juan de Pózul and Teniente Maximiliano Rodríguez parishes. The investigative work was developed in three phases: prefield phase where bibliographic information on the area was collected; field phase in which in situ information such as topography, geology and structural geology was collected and corroborated; office phase that consisted of the processing and interpretation of information and the creation of maps. The geological-structural survey of the Cruzpamba parish was carried out at a scale of 1:25,000. For the geological characterization, photointerpretative analysis was used, the contact mapping method was used and it was complemented with outcrop mapping in a total of 64 outcrops for better corroboration of the present geology, this is how it was possible to identify the presence of 4 lithological formations, each with characteristics specific to each lithology: the Celica Formation (Lower Cretaceous) constituted as the basement of the study area to share the largest amount of surface with 25.51 km² made up of volcanic tuffs, tuffs with hematite, andesites and basaltic andesites; The Ciano Formation (Upper Cretaceous) has an area of 0.45km² made up of sedimentary volcanic rocks of lithified sandstones and siltstones; Alluvial deposit (Quaternary) with an area of 0.39 km² consisting of a silt-sandy matrix with fragments of andesite rock; Colluvial deposit (Quaternary) that occupies an area of 0.46 km² composed of angular andesitic materials. Regarding the structures in the study area, none were identified through photointerpretive analysis; however, in the field the presence of deformation structures is evident, such as joints present in siltstone and basaltic andesite rocks, as well as a quartz vein evident in andesite rock. Keywords: Contact mapping, geological survey, structural geology, photointerpretive analysis |
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