Exam 7: Crustal Deformation and Mountain Building

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

Large circular downwarped structures are called_______ .

Southwestern North America contains a large area called the Basin and Range province. What is the origin of this name?

Burial of rocks increases the confining pressure so that deeply buried rocks are more likely to _______than shallow rocks.

Orogenesis refers to the formation of______ .

The Appalachian Mountains may have once been as lofty as the Himalayan- Tibetan Mountain belt is today. Why are they not this high now?

Granitic batholiths typically form over time intervals of _______ These are normally formed below the surface of the earth.

The Appalachians and Himalaya are a classic collisional mountain belts yet the elevation of the Appalachians mountains is a tiny fraction of the lofty Himalaya. Why are these two collisional mountain belts so different?

In the interior of continents the earth's crust is typically about 40km thick and the elevation is near sea level. Most earth materials expand when heated, lowering their density. During rifting continental margins are heated but cool as sea floor spreading moves offshore from the continent. Thus, basic isostasy suggests that after rifting, a continental margin will_______ .

In an overturned fold, the beds have rotated _______.

Use the figure below to answer the following questions. -In the figure, which of the deformations appears most similar to what might be expected along a transform plate boundary?

The Sierra Nevada Mountains of California, and the Teton Mountains of Wyoming, ranges are examples of_______ .

A transform fault is _______.

An_______ is a thick accumulation of sediments and small tectonic blocks formed of material scraped off subducting oceanic lithosphere at a convergent margin.

The term "cordillera" comes from a word meaning _______.

The below diagram is an example of what plate tectonic setting?

When subjected to a differential stress, a very "brittle" material, like glass, will_______ .

In the figure below, which occurred first, the folding or the faulting? Briefly explain your answer.

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. -Island arc

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. -Topographic basins like the areas labeled B in this figure are called ______.