Electric properties of granitic rocks

• Author(s): Silva, H.G. ; Tlemçani, M. ; Albino, A. ; Bezzeghoud, M. ; Rosa, R. ; Caldeira, B. ; Borges, J.F.
• Date: 2010
• Persistent ID: http://hdl.handle.net/10174/6706
• Origin: Repositório Científico da Universidade de Évora
• Subject(s): Electric properties; granitic rocks; Water; seismo-electromagnetic phenomena
• Document Type: Part of book or chapter of book
• Language: Portuguese
• Editor(s): Silva, A.M.; Reis, A.H.; Fitas, A.; Figueiredo, J.; Caldeira, B.; Bezzeghoud, M.

Description

The objective of this work is to clarify the role of water content on the charge trans- port mechanisms of different granitic rocks. The mineralogical content of the rocks will also be taken into account. From the electrical point of view these materials are rather insulating porous media where charge injection creates different phenomena like build-up charges, space charge limited currents, surface effects and other behav- iors that resemble much a variety of oxides, like AlO.