Initiation of salt diapirs with frictional overburdens - Numerical experiments

Détails

ID Serval
serval:BIB_35316CC5C06B
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Initiation of salt diapirs with frictional overburdens - Numerical experiments
Périodique
Tectonophysics
Auteur(s)
Poliakov A.N.B., Podladchikov Y.Y., Talbot C.
ISSN-L
0040-1951
Statut éditorial
Publié
Date de publication
1993
Peer-reviewed
Oui
Volume
228
Pages
199-210
Langue
anglais
Résumé
We have studied the initiation of salt diapirs with frictional
overburdens under lateral compression and extension. The overburden is
assumed to be elasto-plastic with Mohr-Coulomb yield criterion and
non-associated flow rule. Plastic flow localizes into narrow shear bands
which may represent faults. The geometry and the evolution of these
shear zones are simulated for various theological parameters. The
dilational and frictional properties of frictional overburdens are found
to be important controls on the types of shear zones formed in lateral
compression and extension. The friction and dilation angles influence
the angle of shear and the width, dip, spacing and development history
of conjugate zones of shear-plus-dilation (fault zones) that define
wedges and grabens.
Création de la notice
09/10/2012 20:50
Dernière modification de la notice
20/08/2019 14:22
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