Exam 7: Crustal Deformation and Mountain Building

Use the figure below to answer the following questions. -Which letter in the figure above corresponds to a "syncline"?

What is the difference between a hanging wall and a footwall?

A thrust fault increases the thickness of the crust as it moves toward a continental interior in a mountain belt; yet the crust beyond the mountain front stays the same thickness. Isostasy would suggest that the area at the mountain front, where the thrust emerges, should _______over time.

Use this figure for the following questions: The figure above shows a popular area for North American tourists in winter, the Caribbean region. Match the term to the lett the Figure. -Trench

Was this mountain building process an Andean type mountain building event, a collisional event, or both; and what might have been subducted to produce the over- thickened oceanic crust that drove the orogeny?

Island arc systems now on the Tibet plateau record subduction prior to the collision of India with Eurasia. Geologists would map these pre- collisional arc rocks as_______ .

Use this figure for the following questions: The figure above is an oblique Google earth image from southwestern North America looking approximately north. The view approximately 50km across. The area is a classic area of normal faulting. -The topographic highlands, or ranges, in this area labeled A are also called ______blocks.

Carefully study the illustration below to determine the types. of geologic structures. it shows.

Most geologists think the elevation of mountains above sea level is limited by earth's gravity because _______ .

When the hinge line of a fold is not horizontal the fold is said to______ .

What type of basin would be most likely to contain large amounts of sediments derived from a volcanic source?

In a monocline, the upper and lower limbs of the fold _______ .

Consider the below diagram of normal faulting. Which of the following statements is most likely to be true, based on the diagram?

Subduction occurs when______ rocks are forced beneath rocks.

Most active faults pose a risk to society because they can potentially produce _______.

Briefly describe how time, temperature, mineralogy, and confining pressure affect the way a rock will deform when the differential stresses on the rock exceed the strength of the rock.

The Rocky Mountains of western North America were produced in an orogeny called the_______ .