| Title | Geothermal prospecting of the Apacheta geothermal field in bolivia using 1d inversion of magnetotelluric data |
|---|---|
| Authors | Oscar CAHUANA |
| Year | 2025 |
| Conference | LATAM Geothermal Congress |
| Keywords | magnetotelluric, Sol de Mañana, Apacheta, 1D inversion, TEMTD, Occam's inversion |
| Abstract | This report summarizes the findings of resistivity model based on 1D inversion of magnetotelluric data with the information available for Apacheta field which belongs to the Laguna Colorada area in the southwest of Bolivia, located at the foothills of Western Cordillera next to Sol de Mañana geothermal field. The results show resistivity structure which is characterized by a shallow low-resistivity clay cap oriented approximately east-west along the drilled wells in Sol de Mañana geothermal field. The clay cap extends west to the Apacheta geothermal field. Two up-doming features are observed, under Sol de Mañana and under Apacheta geothermal fields. The mineralogy of the wells is playing a very important role to understand the results of the 1D inversion and correlates somewhat with the results of the 1D resistivity model. More soundings are needed around the Apacheta field to confirm the up-doming feature. |