Nuevos eventos deformacionales registrados en el Segmento SO de la Falla de Carrascoy (Murcia, España)implicaciones en el modelo de crecimiento

1. R. Martín-Banda ¹
2. J.M. Insua-Arévalo ¹
3. J. García-Mayordomo ²
4. A. Salazar ²
5. C. Crespo-Martín ¹

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Altres publicacions en: Geotemas (Madrid)

Resum

The Carrascoy Fault is a left-lateral strike-slip fault belonging to the Eastern Betic Shear Zone. With two overlapping segments (SW and NE), this fault controls the northern edge of the Carrascoy Range and its linkage with of the Guadalentín Depression. The SW segment is formed by the Algezares – Casas Nuevas Fault zone, a fold-and-thrust system constituting foreberg-type, en-echelon-arranged reliefs that show the progressive northwestward migration of deformation from the front controlled by the left-lateral strike-slip (s.s. Carrascoy Fault). Prior studies locate the onset of the Algezares – Casas Nuevas Fault in the middle Pleistocene. In this paper we have identified new tectonic events at the NE fault tip, which fold and thrust the sediments of late Pleistocene alluvial fans. These events are younger than those recorded westernmost in previous studies, and they support a growth model in which the length fault gradually increases with each earthquake.

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