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(Cuadernos do Laboratorio Xeolóxico de Laxe, 1994) Giner Robles, Jorge Luis; Vicente Muñoz, Gerardo de; González Casado, J.M.
An analysis of the neotectonic activity and the current stress state of the eastern border of Madrid Basin has been carried ont using structural-methods (fault population analysis), as well as seismological methods. Two stress tensors have been established:
- Tensor 1: with a N1500E shortening trend, characterized mainly by strikeslip faults. This tensor corresponds to the «Guadarrama» stress field (Capote et al., 1990), wihch causes the Central System structure; dated middle Aragonian
-lower Pleistocene in the eastern border ofMadrid Basin (Muñoz Martín, 1993).
- Tensor 2: dated post-lower Pleistocene, with a N150° E extension trend, characterized basically by normal faults.
Actual stress tensor deduced focal mechanisms by the seismological method is compatible with the paleostress field deduced for the middle-lower Pleistocene
(tensor 2).