Geometría y cinemática de la zona de relevo entre las fallas neógeno-cuaternarias de Concud y Teruel (Cordillera Ibérica).
- Paloma Lafuente 1
- Luís E. Arlegui 1
- Ismael Casado 2
- Lope Ezquerro 1
- Carlos L. Liesa 1
- Óscar Pueyo 1
- José L. Simón 1
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1
Universidad de Zaragoza
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2
Universitat de Barcelona
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ISSN: 0214-2708
Ano de publicación: 2011
Volume: 24
Número: 1-2
Páxinas: 117-134
Tipo: Artigo
Outras publicacións en: Revista de la Sociedad Geológica de España
Resumo
A detailed structural study, combining map information and results of a magnetic, electromagnetic and georadar survey, is carried out in the area where the Concud fault (NW-SE striking, veering towards NNW-SSE at its southern sector) approaches the Teruel fault (N-S striking). Both faults are independent structures from the geometrical and kinematical point of view; they do not show any evidence of physical link and have distinct hanging-wall transport directions: N 220º E and N 271º E, respectively. The Concud and Teruel faults exhibit a right relay arrangement, and produce offsets up to 290-300 and 205-235 m, respectively, in the Neogene materials of the Teruel basin. Within the intermediate block, displacement is transferred between the faults by means of a relay ramp dipping towards N or NNW, with further complication arising from the transverse faulted synformal structure of Los Mansuetos-Valdecebro. Although no physical connection does exist, these faults undergo mechanical interaction. This is evidenced by their sudden slip transference; the displacement-length profiles show high displacement gradients as approaching the relay zone, which, on the other hand, suggests a tendency to coalescence in the future.