Fig. 50 Fault anatomy

Date: 2015-10-07; view: 536.

Compression is usually responsible for reverse faulting where the hanging wall is moved up relative to the footwall. A reverse fault that dips 30 or less becomes a thrust fault.

Strike-slip faults occur where crustal blocks slide laterally by each other along nearly vertical zones of movement.

Strike-slip faults are referred to in many ways, including wrench, tear, and transcurrent faults. They are identified by the sense of movement of the block on the far side of the fault from the viewer. If the viewer is observing the fault and the block on the far side of the fault has moved to the right, the fault is known as a right-lateral strike-slip fault. Right lateral faults are also known as right-slip, right-handed or dextral strike-slip faults. Faults with left-handed displacement are referred to with similar nomenclature. However, left-handed faults are sinistral, as opposed to dextral or right-handed faults.

(Абрамова Р.Н., Квеско Н.Г., Introduction to Continuum Mechanics- учебное пособие, Томск, ТПУ. 2005.)