Exam 34: Faults, Folds, and Landscapes

What type of stress is imposed on a rock body to produce horsts and grabens?

Regional deformation may also be termed all of the following EXCEPT:

The block of rock below the fault plane is termed:

When studying a geologic map, a geology student notices that the rock layers make a "U-shaped" pattern, a band of old rocks are found near the axial plane, and the rocks become progressively younger tracing the layers from the plane outward. The geology student concludes he is looking at a:

A fracture in the Earth's crust that shows no displacement between rock layers on either side of the fault is called a:

Many times it is difficult to see the layers of the Earth firsthand. Therefore, scientists take strike and dip measurements along the surface of the Earth to determine what the layers look like at depth. Understanding that the fold axis is an imaginary hinge at the apex of a fold, a geologist would know that the presence of an anticline exists when multiple layers are exposed and:

To describe the nature and orientation of structures, the _____ is the compass direction of the line of intersection between a rock layer and a horizontal plane.

If the San Andreas Fault continues its current motion, the city of Los Angeles will eventually lie next to San Francisco. The motion would best be described as a:

It is difficult to identify outcrops that reveal reverse faulting because the overlying hanging wall has usually collapsed, weathered, and eroded. Another easy way to identify a reverse fault is by locating:

An anticline has:

A linear valley produced from tensional forces is called a _____.

When the block above a low-angle fault plane moves up, it produces a _____ fault.

Field evidence that may help to determine if the beds are overturned would be: