STABILITY OF A DENSITY-STRATIFIED 2-LAYER SYSTEM

Authors
MASSIN P TRIANTAFYLLIDIS N LEROY YM
Citation
P. Massin et al., STABILITY OF A DENSITY-STRATIFIED 2-LAYER SYSTEM, Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes, 322(5), 1996, pp. 407-413
Citations number
15
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes → ACNP
ISSN journal
12518050
Volume
322
Issue
5
Year of publication
1996
Pages
407 - 413
Database
ISI
SICI code
1251-8050(1996)322:5<407:SOAD2S>2.0.ZU;2-M
Abstract
The results of a linear and a non-linear stability analysis are presen ted for the system composed of a cohesive, frictional overburden resti ng on a viscous substratum of lower density. Stability depends on the in situ stress and not solely on the density contrast, as for visco-el astic models. It is shown that an unstable system evolves towards a st able fold whose finite amplitude is a function of the tectonic force. However, if faulting occurs in the overburden during the fold developm ent, the structure then collapses in a chevron mode.