Modelización numérica de la evolución geodinámica del surco de Valencia

Negredo, A.M. ^[1] ; Fernández, M. ^[2] ; Torné, M. ^[2]
1. [1] University of Milan
  
  University of Milan
  
  Milán, Italia
2. [2] Instituto de Ciencias de la Tierra Jaume Almera
  
  Instituto de Ciencias de la Tierra Jaume Almera
  
  Barcelona, España
Localización: Geogaceta, ISSN 0213-683X, Nº. 20, 4, 1996 (Ejemplar dedicado a: Comunicaciones presentadas en el IV Congreso Nacional de Geología, Alcalá de Henares, 1996), págs. 978-981
Idioma: español
Títulos paralelos:
- Numerical modelling of the geodynamic evolution of the Valencia trough
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Resumen
- A numerical kinemalic model of extension has been used lo study the geodynamic evolution of the Valencia Trough. The model allows for depth-dependent lithospheric extension and lateral accommodation of extension. The best fitting model of the geophysical observations is obtained by assuming a phase of synrift evolution lasting 15 Ma, with maximum lithospheric thinning in the trough during the Early Miocene (25-15 Ma) and reduced extension during the Serravallian (15-10 Ma). The lower crust and lithospheric mantle would be stretched by a higher amount than the upper crust The evolution of the Balearic Promontory would be characterised by a first stage of crustal thickening during the Lower Miocene and a second slage of thinning related to the opening of the Algerian Basin during the Serravallian.