Desarrollo simultáneo reciente de pliegues y fallas en las Cordilleras Béticasla Falla de Zafarraya y el Pliegue de Sierra Tejeda

  1. J. Galindo Zaldívar 1
  2. A.J. Gil 2
  3. M.J. Borque 2
  4. F. González Lodeiro 1
  5. A. Jabaloy 1
  6. C. Marín-Lechado 3
  7. P. Ruano 1
  8. C. Sanz de Galdeano 4
  1. 1 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

  2. 2 Universidad de Jaén
    info

    Universidad de Jaén

    Jaén, España

    ROR https://ror.org/0122p5f64

  3. 3 Instituto Geológico y Minero de España
    info

    Instituto Geológico y Minero de España

    Madrid, España

    ROR https://ror.org/04cadha73

  4. 4 Instituto Andaluz de Ciencias de la Tierra
    info

    Instituto Andaluz de Ciencias de la Tierra

    Granada, España

    ROR https://ror.org/00v0g9w49

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Revista:
Geotemas (Madrid)

ISSN: 1576-5172

Ano de publicación: 2004

Título do exemplar: IV Congreso Geológico de España (Zaragoza, 12-15 julio, 2004)

Número: 6

Páxinas: 147-150

Tipo: Artigo

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Outras publicacións en: Geotemas (Madrid)

Resumo

The present-day relief of the Betic Cordilleras is the result of the interaction between kilometresized folds and faults that developed since the Late Miocene, by the oblique convergence between the Eurasian and African plates. Folds clearly determine the E-W orientation of the main mountain ranges and valleys in the central Betic Cordillera. Although faults have a complex kinematic evolution, the most abundant faults are normal, and NW-SE and E-W oriented sets are well developed. The study o f the Zafarraya fault and the Sierra Tejeda antiform, by field observations and the installation of a new GPS network, provides new data to discuss their relationships. The present-day NW-SE horizontal shortening is compatible with the development o f the NW-SE extensional fault system located in the southwest periclinal end of the folds. However, the simultaneous development o f E-W oriented normal faults and folds may be a consequence of the accommodation of blind thrust structures that join in a detachment level where most o f the seismicity of the region is concentrated.

Fonte de datos: Dialnet