FAM-1 Boreholefirst results from the scientific drilling of the Alhama de Murcia Fault, Betic Cordillera, Spain

  1. J.J. Martínez-Díaz 1
  2. J.M. Insua-Arévalo 1
  3. M. Tsige 1
  4. E. Rodríguez-Escudero 2
  5. M.J. Jurado 3
  6. J. Alonso-Henar 1
  7. J. Crespo 3
  8. D. Jiménez-Molina 1
  9. J.M. Moratalla 1
  10. M.J. Rodríguez-Péces 1
  11. J.A. Álvarez-Gómez 1
  12. R. Pérez-López 4
  13. M. Alvaro 1
  14. R. Capote 1
  1. 1 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

  2. 2 Universidad Autónoma de Madrid
    info

    Universidad Autónoma de Madrid

    Madrid, España

    ROR https://ror.org/01cby8j38

  3. 3 ICTJA, CSIC Instituto de Ciencias de la Tierra Jaume Almera
  4. 4 IGME, Instituto Geológico y Minero de España
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Revista:
Geotemas (Madrid)

ISSN: 1576-5172

Año de publicación: 2016

Título del ejemplar: IX CONGRESO GEOLÓGICO DE ESPAÑA

Número: 16

Páginas: 579-582

Tipo: Artículo

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Otras publicaciones en: Geotemas (Madrid)

Resumen

We present the preliminary results of the borehole FAM-1 a 175 m depth scientific drilling of the Alhama de Murcia fault.The borehole was drilled close to La Torrecilla rambla three km SW of Lorca where the fault zone shearing is more concentrated and it is dominated by well-developed clay rich fault gouge. To select the drilling point and to perform a prognosis of it, three trenches were excavated crossing the fault zone that allowed us to determine the detailed 3D structure of the fault zone. We have collected more than 100 m of unaltered high quality fault rock to be studied using mineralogical and microtectonic analysis, and geomechanical testing that will improve the knowledge of the influence of tectonic microfabric and mineralogy in the seismogenic behavior of the AMF. The borehole FAM-1 and the seismic monitoring borehole FamSis-1 constitute the first stage of a future geological-geophysical observatory for monitoring the activity of the AMF.

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