Exam 6: Restless Earth: Earthquakes, Geologic Structures, and Mountain Building

Sketch a cross-sectional view of Earth's interior, and label each of the layers you depict.

Mountain belts form by ________.

Label each of the blanks on the figure showing the source of earthquakes.

Which kind of seismic wave is fastest-moving?

Sediment scraped off the subducting plate builds up in a(n)________. A nice example of this can be seen in central California's coast ranges.

Domes are broad circular downwarped structures.

This photo shows an anticline.

Horsts and grabens are bounded by ________.

Which location has its formation depicted in these figures, (a)the Basin and Range, (b)the Himalayas, or (c)the Andes? Discuss the features that support your conclusion.

The ________ is the cool, brittle, outer layer of Earth that includes the crust and uppermost mantle.

Seismic waves travel faster ________.

The mountains and valleys of the Basin and Range Province of western United States formed in response to tensional stresses and normal faulting.

Which kind of seismic wave is responsible for the most shaking (and thus, the most damage to human structures)?

In this figure, the letter "C" is the location.

Examine the graph. After a P wave (blue line)has been traveling for 5 minutes, how much distance has been covered by an S wave (red line)generated by the same earthquake?

Describe the steps you would go through to determine the source of an earthquake, provided you had access to three seismographs that recorded the event.

The earthquake belt with the greatest level of activity is the ________.

The east coast of present-day North America is a good example of a(n)________ continental margin.

What kind of fold is illustrated in this photograph? At what sort of tectonic boundary situation is it likely to have formed?

In a reverse fault, the hanging wall block moves up with respect to the footwall block.