Aplicación del método electromagnético de inducción ligera para el análisis de la permeabilidad en medios fracturados (granito de "
Fracture characterization in granites has been an important subject of study during these last years, by means of geological-structural cartography, hydrogeology and geochemical analysis. These works have been carried out to investigate the hydromechanics and permeability in low-permeability rocks....
| Authors: | , , , , |
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| Format: | article |
| Publication Date: | 2009 |
| Country: | España |
| Institution: | Universidad de Huelva (UHU) |
| Repository: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Language: | Spanish |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/8005 |
| Online Access: | http://hdl.handle.net/10272/8005 |
| Access Level: | Open access |
| Keyword: | Permeability Low-induction electromagnetic method Resistivity Fractures Spanish Central |
| Summary: | Fracture characterization in granites has been an important subject of study during these last years, by means of geological-structural cartography, hydrogeology and geochemical analysis. These works have been carried out to investigate the hydromechanics and permeability in low-permeability rocks. In this study we apply a surface geophysical method in order to characterize the permeability of the fault zones affecting «El Berrocal» granite (Central System, Spain). The low-induction electromagnetic method (EM) gives us the apparent resistivity (ρa) values of the rocks at a maximum depth. As the ρa depends on the granite alteration and/or the water content, this parameter allows estimating the relative permeability of different fracture zones. The obtained results show that the high-permeability fractures are those that are larger ones which were active during Alpine deformation (Eocene-present) |
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