| Title | Two-Dimensional Modeling of Apparent Resistivity Pseudosections in the Cerro Prieto Region |
|---|---|
| Authors | R. Vega, M. Martinez |
| Year | 1981 |
| Conference | DOE-CFE Symposium on Cerro Prieto |
| Keywords | |
| Abstract | Using a finite-difference program (Dey, 1976) for two-dimensional modeling of apparent resistivity pseudosections obtained by different measuring arrays, four apparent resistivity pseudosections obtained at Cerro Prieto with a Schlumberger array by CFE personnel were modeled (Razo, 1978). Using geologic (Puente and de la Pena, 1978) and lithologic (Dfaz, et al., 1981) data from the geothermal region, mOdels were obtained which show clearly that, for the actual resistivity present in the zone, the information contained in the measured psueudosections is primarily due to the near-surface structure and does not show either the presence of the goethermal reservoir or the granitic basement which underlies it. Usando un programa de elemento finito (Dey, 1976) para el modelado bi-dimensional de seudosec ciones de resistividad aparente usando diversos arreglos, se han modelado uatro perfiles de pseudoresistividad aparente medidos usando el arreglo Schlumberger por ersonal de la CFE (Razo, 1978). Tomando los datos geologicos (Puente y de la Pena, 1978) litologicos (D1az, et al., 1981) de la region geotermica se han obtenido modelos que mues tran claramente que para las resistividades reales presentes en la zona, la informacion dada por las pseudosecciones medidas proviene de la estructura superficial, no mostrando la presencia ni del yacimiento geotermico ni del basamento gran1tico. |