Thrust Fault Hanging Wall

The hanging wall moves up and over the footwall.

Thrust fault hanging wall.

Thrusts are commonly low angle faults. Flat segments of thrust fault planes are known as flats and inclined sections of the thrust are known as ramps. Reverse dip slip faults result from horizontal compressional forces caused by a shortening or contraction of earth s crust. Diagram showing how one section of land slips over another in a thrust fault.

Thrust faults are reverse faults that dip less than 45. According to mechanical models of. The difference between the two faults is the angle of the fault. The boundary between hanging wall and fault zone is marked by a sharp transition from coherent bedding to pervasively brittlely and ductilely deformed fault zone rock fagereng et al 2019.

Generally when the fault dips less than 45 it s called a thrust fault steeper faults are called reverse faults. Other articles where thrust fault is discussed. The angle of the fault plane in a reverse fault is greater than 45 degrees the hanging wall on one side of the fault moves upward and is usually visible on the surface of the earth. The lewis overthrust is a geologic thrust fault structure of the rocky mountains found within the bordering national parks of glacier in montana united states and waterton lakes in alberta canada.

This is not however a hard and fast distinction. 300 mbsf holes u1518b and u1518f penetrate the top of the fault zone. The deformation style is localized and variable. A thrust fault has the same sense of motion as a reverse fault but with the dip of the fault plane at less than 45.