Details of the abstract
Title of paper | Integration of magnetotelluric data with ambient seismic noise and gravity models in order to characterize geothermal fault-controlled systems. The Vallès Basin case of study (NE Spain). |
List of authors | Mitjanas, G., Ledo, J., Queralt, P., Piña-Varas, P., Martí, A. |
Affiliation(s) | Universitat de Barcelona, Universidad Complutense de Madrid, Universitat de Barcelona, Universitat de Barcelona, Universitat de Barcelona, |
Summary |
The Vallès-Penedès (V-P) Basin (Catalan Coastal Range, NE Spain) has been investigated by means of an integrated geophysical methodology. Among the different investigation methods deployed, two magnetotelluric profiles integrated with gravity and ambient seismic noise data have been performed. Although a definitive 3D magnetotelluric and gravity model covering the Vallés-Penedès Basin is still being worked on, the integration of the presented geophysical methods has allowed the identification and characterization of the V-P Fault. The V-P Fault is imaged as a conductive body, fractured and water-saturated, which acts as a path for hot fluids which come from great depths. The presence of high-degree deformation zones along the V-P Fault trace and also the intersection with other potential faults, seem to control fast paths of up-fault flow. The models presented, as well as preliminary interpretations, lead to the conclusion that the integration of the different methods is a very effective way to characterize geothermal systems, even if they are low-temperature systems or are located in urban areas. |
Session Keyword | 3.0 Exploration, Monitoring and Hazards |
File upload |
3.0_integration_of_magnetotel_mitjanas colls.pdf
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