Exam 11: Crags,cracks,and Crumples: Crustal Deformation and Mountain Building

Regularly spaced joints in an outcrop may indicate that an area ________.

A body of rock affected by tensile stress will likely undergo ________.

How is stress different from force?

In a ________ fault,the fault plane is nonvertical and the hanging-wall block moves downward relative to the footwall block.

How is stress different from strain?

On a geologic map,if the contacts between sedimentary rock units form a bull's-eye pattern of concentric circles,with the youngest unit in the center,the underlying structure is a(n)________.

Force per unit area is termed ________.

A fold shaped like an elongate arch is a(n)________.

Which of these features would NOT help a geologist recognize a fault?

Normal,reverse,and thrust are all examples of ________ faults.

Orogenesis (mountain building)leads to the production of ________.

Shear stress at sufficient depth within a fault plane can induce plastic shear,forming a fine-grained metamorphic rock named ________.

In the map below,the vertical,north-south trending fault is a ________ fault.

On a geologic map,if the contacts between sedimentary rock units form a bull's-eye pattern of concentric circles,with the oldest unit in the center,the underlying structure is a(n)________.

An episode of mountain building is termed a(n)________.

There are many ways in which uplift can occur,but all of them reflect ________.

If a fault plane is less than 35° from horizontal and the hanging-wall block moves upward relative to the footwall block,the fault is a ________ fault.

How is tectonic foliation,such as elongation of quartz grains,oriented relative to the original bedding plane of a body of rock?

A polished surface produced by scraping of rock along a fault is termed a(n)________.

How were nearly all of the present mountain ranges formed?