Exam 9: Earthquakes and Volcanoes

Folded layers of rock can form a wavelike pattern of troughs and crests. The layers near the trough form

The hanging wall moves down in a reverse fault.

The Basin and Range Province of the interior western United States is a type of horst and graben topography.

A scale used to classify and describe the effects of earthquakes on terrain, construction, and local damage conditions is the

All earthquakes rated using the revised Richter moment magnitude scale have been rated higher than those rated on the original Richter scale.

The Alps and alpine complex in Europe are an example of a third order of relief.

Fault types are defined by

Volcanoes formed from silica-rich magma

Molten rock that pours forth on Earth's surface is called

The phrase "considerable-to-serious damage to buildings" would be used in the ________ scale.

On average, how often would you expect an earthquake of between moment magnitude 5.0-5.9 and Mercalli V-VII to occur?

Composite cones have steep slopes and experience ________ eruptions because they are composed of ________ magma.

An instrument used to record vibrations in the crust is the

The eventual catastrophic eruption of Mount Saint Helens was

Which of the following is false regarding terranes?

Geologically speaking, the continents began forming relatively recently.

The undulating form that gives Earth's surface its character and general configuration is called

Lava plateaus, such as the Columbia River Plateau, are formed from ________ magma, which has a ________ viscosity.

A cinder cone is formed from relatively ________ viscosity magma with a ________ gas content.

Many of the islands of Indonesia (Java, Sumatra, Borneo), which are located adjacent to a subduction zone next to the edge of the continental shelf of SE Asia, consist of felsic lava. This means that the lava that produces these islands is derived from