décollement
Sign in to saveAlso known as decollement
thumb|Fig. 1 Imbricate fan in a thrust system with a basal décollement. The section below the décollement is undeformed basement rock. Above the décollement, deformation has occurred due to compression. A series of branching faults terminating at depth.
~7 min read
Article
10 sectionsContents
- Origin
- Formation
- Compressional setting
- Effect of friction
- Types of folding
- Extensional setting
- Examples
- Jura Décollement
- Appalachian-Ouachita Décollement
- References
thumb|Fig. 1 Imbricate fan in a thrust system with a basal décollement. The section below the décollement is undeformed basement rock. Above the décollement, deformation has occurred due to compression. A series of branching faults terminating at depth.
Décollement () is a gliding plane between two rock masses, also known as a basal detachment fault. Décollements are a deformational structure, resulting in independent styles of deformation in the rocks above and below the fault. They are associated with both compressional settings (involving folding and overthrusting) and extensional settings.