Prospección geofísica en los movimientos en masa aguas arriba de la represa del Delsitanisagua, provincia de Zamora Chinchipe.
The following research study is entitled “Geophysical Prospection on Mass Movements Upstream of Delsitanisagua Hydroelectric Dam from Zamora Chinchipe Province.” It is a technical study based on the analysis of a significant reptation model of a mass movement that is being reactivated, and this move...
Saved in:
| Hovedforfatter: | |
|---|---|
| Format: | bachelorThesis |
| Sprog: | spa |
| Udgivet: |
2024
|
| Fag: | |
| Online adgang: | https://dspace.unl.edu.ec/jspui/handle/123456789/31205 |
| Tags: |
Tilføj Tag
Ingen Tags, Vær først til at tagge denne postø!
|
Tilføj Tag | Summary: | The following research study is entitled “Geophysical Prospection on Mass Movements Upstream of Delsitanisagua Hydroelectric Dam from Zamora Chinchipe Province.” It is a technical study based on the analysis of a significant reptation model of a mass movement that is being reactivated, and this movement poses a threat to the hydroelectric dam. Therefore, key parameters were analyzed to provide technical data for future studies to ensure the stability of this relevant movement. The research took into account the superficial geological behavior in the study area, characterized by 13 outcrops that revealed a variety of surface lithologies, including soils, boulders, and rock blocks supported by sandy silt matrix, highly weathered gneiss rocks, and slightly to inweathered healthy gneiss rocks from U. Sabanilla. The study area represents a significant reptation rate mass movement, within which five slides were identified, one of which is rotational, while the others are reptational type; as a result, it confirms that this movement has been reactivating. The mass movements in the area are influenced by factors such as high slopes, runoff waters, the lack of vegetation, and lithological composition. Finally, electrical resistivity tomographies were applied to investigate the distribution of geoelectric units and their resistivities in the study area. Eight geoelectric lines were implemented in the field, four longitudinal and four transversal; with the data collected, the geophysical investment was generated in the Res2Dinv program to obtain the geoelectric profiles using the Schlumberger configuration, which revealed the presence of four different geoelectric units with resistivities from 30Ωm to 6463 Ωm, ranging from dendritic materials with indications of moisture to highly fractured and weathered rocks. Observations of surface lithology and mass movement characterization complemented electrical tomographies’ interpretations. Keywords: Geology, Lithology, Mass Movements, Reptation, Electrical Resistivity Tomographies, Schlumberger. |
|---|