Application of Anisotropy of Magnetic Susceptibility to large-scale fault kinematics: an evaluation

Casas, A.M. (Universidad de Zaragoza) ; Roman-Berdiel, M.T. (Universidad de Zaragoza) ; Marcén, M. (Universidad de Zaragoza) ; Oliva-Urcia, B. ; Soto, R. ; Garcia-Lasanta, C. ; Calvin, P. ; Pocovi, A. (Universidad de Zaragoza) ; Gil-Imaz, A. (Universidad de Zaragoza) ; Pueyo-Anchuela, Ó. (Universidad de Zaragoza) ; Izquierdo-Llavall, E. (Universidad de Zaragoza) ; Vernet, E. ; Santolaria, P. ; Osacar, C. (Universidad de Zaragoza) ; Santanach, P. ; Corrado, S. ; Invernizzi, C. ; Aldega, L. ; Caricchi, C. ; Villalain, J.J.

Resumen: Major discontinuities in the Earth’s crust are expressed by faults that often cut across its whole thickness favoring, for example, the emplacement of magmas of mantelic origin. These long-lived faults are common in intra-plate
environments and show multi-episodic activity that spans for hundred of million years and constitute first-order controls on plate evolution, favoring basin formation and inversion, rotations and the accommodation of deformation in large segments of plates. Since the post-Paleozoic evolution of these large-scale faults has taken place (and can only be observed) at shallow crustal levels, the accurate determination of fault kinematics is hampered
by scarcely developed fault rocks, lack of classical structural indicators and the brittle deformation accompanying fault zones. These drawbacks are also found when thick clayey or evaporite levels, with or without diapiric movements, are the main detachment levels that facilitate large displacements in the upper crust...

Idioma: Inglés

Año: 2017

Publicado en: Geophysical Research Abstracts 19 (2017), 15988
ISSN: 1029-7006

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Paleontología (Dpto. Ciencias de la Tierra)
Área (Departamento): Área Geodinámica Interna (Dpto. Ciencias de la Tierra)
Área (Departamento): Área Cristalografía Mineralog. (Dpto. Ciencias de la Tierra)