Basement structure of the Hontomín CO2 Geological storage facility (Burgos, Spain)integration of microgravity & 3D seismic reflection data

  1. J. Andrés 1
  2. J. Alcalde 2
  3. P. Ayarza 3
  4. E. Saura 1
  5. I. Marzán 1
  6. D. Martí 1
  7. J.R. Martínez Catalán 3
  8. R. Carbonell 1
  9. A. Pérez-Estaún 1
  10. J.L. García-Lobón 4
  11. F.M. Rubio 4
  1. 1 Instituto de Ciencias de la Tierra „Jaume Almera‟ ICTJA-CSIC
  2. 2 University of Aberdeen
    info

    University of Aberdeen

    Aberdeen, Reino Unido

    ROR https://ror.org/016476m91

  3. 3 Universidad de Salamanca
    info

    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

  4. 4 Instituto Geológico y Minero de España - IGME
Revista:
Geotemas (Madrid)

ISSN: 1576-5172

Año de publicación: 2016

Título del ejemplar: IX CONGRESO GEOLÓGICO DE ESPAÑA

Número: 16

Páginas: 523-526

Tipo: Artículo

Otras publicaciones en: Geotemas (Madrid)

Resumen

The structure of the Hontomín CO2 geological storage research facility has been addressed combining 3D seismic reflection data, borehole information and microgravity data. The integrated interpretation constrains the basement structural setting geometry and that of the sedimentary succession. The study unravels the deep structure and topography of the basement and quantifies the thickness of the Triassic Keuper evaporites. We describe a half-graben setting filled with Keuper evaporites (up to 2000 m) forming an extensional forced fold. Three set of faults are identified with two main fault systems compartmentalizing the area into three differentiated blocks. These faults have been interpreted to be reactivated normal faults that have led to the formation of the Hontomín dome.