Crisis tectónicas cuaternarias en la cuenca de Madrid.

Giner, J.L. ^[1] ; De Vicente, G. ^[1] ; Pérez González, A. ^[1] ; Sánchez Cabañero, J.G. ^[2] ; Pinilla, L. ^[1]
1. [1] Universidad Complutense de Madrid
  
  Universidad Complutense de Madrid
  
  Madrid, España
2. [2] Consejo de Seguridad Nuclear
  
  Consejo de Seguridad Nuclear
  
  Madrid, España
Localización: Geogaceta, ISSN 0213-683X, Nº. 20, 4, 1996 (Ejemplar dedicado a: Comunicaciones presentadas en el IV Congreso Nacional de Geología, Alcalá de Henares, 1996), págs. 842-845
Idioma: español
Títulos paralelos:
- Madrid basin Quaternary tectonic crisis
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Resumen
- Quaternary sediment deformation structures of Madrid Basin have been analyzed. We get a high symmetry degree in deduced stress tensor trends, concluding that there are a regional stress field with NW-SE Shmax trend. Local stress field (NE-SW) is also deduced. This deformational process has been active since Middle-Upper Miocene, and it is still active as can be seen from seismological data. Largest deformation structures occur in the centre of the basin, where gypsum outcrops appear. It seems that halokynetics processes potentiated this tectonic deformation. Analyzed areas and ages of deformed quaternary sediments, leads us to the conclusion that intense faulting occured in Lower-Middle Pleistocene. Related paleoseismic structures appear.