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Microgravimetric and seismic joint characterisation of the basement in Hontomín (Spain)

AutorAndrés, Juvenal ; Alcalde, Juan ; Ayarza, P.; Saura, Eduard ; Marzán, Ignacio; Martí, David ; Martínez-Catalán, J. R.; Carbonell, Ramón ; Pérez-Estaún, Andrés ; Ayala, C. ; Rubio, F.M.
Fecha de publicación15-may-2016
EditorUniversity of Aberdeen
Citación17th International Seismix Symposium: 10 (2016)
ResumenHontomín (N Spain) hosts the first Spanish CO2 storage research plant. The geophysical characterisation of the site included the acquisition of a 36 km2 3D seismic and a 16 km2 3D microgravimetric datasets. The integration of these data is here used to: (1) reproduce the deep structure and topography of the basement; (2) quantify the thickness of the Triassic Keuper evaporites, located between the sedimentary succession and the metamorphic basement; and (3) establish relationships between the faults interpreted in the seismic data and those inferred from the gravimetric data in the basement. The geometry of the sedimentary succession and structures interpreted from the seismic volume were used to constrain the inversion of the microgravity data: i.e. their gravimetric signature was calculated and then removed from the Bouguer Anomaly, thus reducing the uncertainty in the inversion process. The derived top of the basement geometry was used, along that of the top of the Triassic Keuper, to calculate the salt thickness.
URIhttp://hdl.handle.net/10261/150172
Aparece en las colecciones: (ICTJA) Comunicaciones congresos
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