The Structures Page
© 2022 JWF Waldron
Introduction
Primary structures of sedimentary rocks ...
Bedding & sedimentary fabric
Current bedforms
Scour structures
Waves and tides
Desiccation
Organisms: construction
Organisms: bioturbation
Deformation, water-escape
Primary structures of igneous rocks (under construction)
Extrusive rocks
Intrusive rocks
Unconformities
Fractures ...
Joints and veins
Faults - geometry
Faults - outcrop features
Folds and boudins ...
Folds - orientation
Folds - style
Folds - relationships
Boudins
Strain and fabric ...
Strain
Fabrics
Shear zones & mélanges