Faults are fractures along which there has been significant relative motion. They are classified by geometry and kinematics into several types.

normal fault

Normal fault in early Jurassic shale and sandstone, Whitby, Yorkshire, England

thrust fault

Thrust fault (mountainside scale). Upper part of mountain is white limestone and dolostone of Triassic age; lower mountainside is Miocene 'flysch' sandstones and shales. Isparta Dag, Lycian Nappes, SW Turkey

thrust faultThrust fault in cliff exposure of Cambrian Port au Port Group limestone and dolostone. Port au Port Peninsula, SW Newfoundland

thrust fault\

Thrust duplication of single bed. Pensylvanian Stellarton Formation shales and siderite band, Stellarton, Nova Scotia