Reconocimiento geoeléctrico de paleovalles en la depresión terciaria de Ciudad Rodrigo

• Autores: Ángel Corrochano Sánchez, M. F. Andrés Sánchez, Pedro Barba Regidor, N. Curiel, Ildefonso Armenteros Armenteros
• Localización: Geogaceta, ISSN 0213-683X, Nº. 29, 2000, págs. 37-39
• Idioma: español
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• Resumen

  • The V.E.S. (vertical electrical sounding) study undertaken in the Ciudad Rodrigo Craben unravels the structure and the lithology of the graben infill. The basement resistivity values (200-350 Qm) indicate the presence of NW-SE oriented paleovalleys which were responsible for the tertiary drainage. The resistivity values of the tertiary rocks show the presence of sandstones and conglomerates (40-70 Qm), sand and clay (20-30 ?m) and claystone (10-18 ?m). Each of these groups can be correlated to Paleogene and Neogene rocks according to surface observations