Por favor, use este identificador para citar o enlazar este ítem:
http://cicese.repositorioinstitucional.mx/jspui/handle/1007/3529| Caracterización de un sistema geotérmico en el Ejido Uruapan, B.C. a partir de datos eléctricos y audiomagnetotelúricos en 3D Characterization of a geothermal system in Ejido Uruapan, B.C. from electrical and audiomagnetotelluric data in 3D | |
| Jacqueline Morales Mora | |
| Marco Antonio Pérez Flores Diego Ruiz Aguilar | |
| Acceso Abierto | |
| Atribución | |
| Métodos Eléctricos, Métodos Electromagnéticos, Sistema Geotérmico no Magmático, Falla de Agua Blanca Electrical Methods, Electromagnetic Methods, Non-magmatic Geothermal System, Agua Blanca Fault | |
| En la zona del Ejido Uruapan, ubicada en el municipio de Ensenada, Baja California, se reportan manantiales termales con temperaturas en superficie que varían entre 40° y 60°C, por lo que se le considera como una zona con potencial geotérmico. Como primera etapa del programa de exploración geotérmica se decidió realizar un levantamiento de datos geofísicos, en donde se adquirieron 8 perfiles de Corriente Directa (DC) y Polarización Inducida (PI), 7 sondeos audiomagnetotelúricos (AMT) y 4 Transitorios Electromagnéticos (TEM). Los perfiles de DC y PI tienen una longitud de 450 m; se utilizaron los arreglos Dipolo-Dipolo (DD), Wenner (WN) y Schlumberger (SC), con una separación electródica de 10 m. Los sondeos audiomagnetotelúricos se realizaron con dipolos eléctricos de 50 m y las señales fueron grabadas en un rango de frecuencia de 10 Hz a 100 kHz. Los sondeos TEM fueron adquiridos usando una configuración de sistema geotérmico, como son la presencia de estructuras conductoras relacionadas con zonas de alteración hidrotermal, zonas de resistividades intermedias que podrían correlacionarse con el reservorio geotérmico y estructuras de alta resistividad que se asocian al basamento. Además, se identificaron las estructuras geológicas que controlan el movimiento de los fluidos geotérmicos en el Ejido Uruapan y la cual se asocia al sistema de falla de Agua Blanca. In the area of Ejido Uruapan, located in the municipality of Ensenada, Baja California, there have been reported thermal springs with surface temperatures that vary between 40 ° and 60 ° C, which is why it is considered an area with geothermal potential. As the first stage of the geothermal exploration program, it was decided to carry out a survey of geophysical data, with 8 profiles of Direct Current (DC) and Induced Polarization (IP), 7 audio magnetotelluric soundings (AMT), and 4 Electromagnetic Transit ( TEM). The DC and IP profiles have a length of 450 m; the arrangements used were Dipole-Dipole (DD), Wenner (WN), and Schlumberger (SC) with an electrode separation of 10 m. The audio agnetotelluric soundings were carried out with 50 m electric dipoles, and the signals were recorded in a frequency range from 10 Hz to 100 kHz. TEM soundings were acquired using a central loop configuration with an effective area of 30 x 30 m2 for the Tx and 100 x 100 m2 for the Rx. First, the 3D inversion of the DC data was performed, as well as the 2D inversion of the IP data. Afterward, the 1D inversion of the TEM data was applied. The inverse models obtained from the TEM data were taken as the basis for performing the static shift correction of the AMT data. Subsequently, the 1D inversion of the corrected AMT data was carried out using the Occam and Marquardt techniques. Lastly, the 3D inversion of the corrected AMT data was performed. Prior to the interpretation, the sensitivity analysis of the parameters of the inverse models obtained was shown. Finally, the inverse models were correlated with the geological information of the study area. In this way, it was concluded that the study area shows characteristic features associated with the elements of a geothermal system, such as the presence of conductive structures related to zones of hydrothermal alteration, zones of intermediate resistivities that could be correlated with the geothermal reservoir, and high resistivity structures that are associated with the basement. In addition, it was identified that the geological structures that control the movement of geothermal fluids are in Ejido Uruapan which are associated with the Agua Blanca fault system. | |
| CICESE | |
| 2021 | |
| Tesis de maestría | |
| Español | |
| Morales Mora, J. 2021. Caracterización de un sistema geotérmico en el Ejido Uruapan, B.C. a partir de datos eléctricos y audiomagnetotelúricos en 3D. Tesis de Maestría en Ciencias. Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California. 127 pp. | |
| GEOMAGNETISMO Y PROSPECCIÓN MAGNÉTICA | |
| Aparece en las colecciones: | Tesis - Ciencias de la Tierra |
Cargar archivos:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| Tesis_Jacqueline Morales Mora_18 feb 2021.pdf | Versión completa de la tesis | 217.69 MB | Adobe PDF | Visualizar/Abrir |