Exam 15: Mass Movements: Landscapes in Motion

Why would people build their houses in areas where catastrophic mass movements occur?

What are the three characteristics used to describe mass movements?

Which is the biggest cause of regolith movement?

Which of the following is not true about snow/heavy rain and mass movements?

How do a slide and a slump differ?

The Old Man in the Mountain, a granite cliff resembling a man's face located in the White Mountains of New Hampshire, collapsed in spring of 2003. What type of mass movement does this occurrence represent?

A student who had once lived in Alaska describes the following personal experience: "The shaking of the ground beneath my house caused compaction of the particles, which caused a later mass movement resulting in my house breaking apart." Evaluate this statement.

The most common stimuli that abruptly imbalance driving and resisting forces governing the occurrence of mass movements include what?

The presence of a thin film of water on the surface of sand grains results in ________ angle of repose.

Where would you expect the thickest regolith?

Volcanic eruptions can trigger lahars that may occur long after the volcanic activity has ceased. The simplest definition of a lahar is?

Define a flow.

Read carefully through the following sentence, and decide which of the options is correct. Factors determining slope stability are the steepness of the slope, the composition and texture of material, the abundance of water, the presence and orientation of volcanic features in the rock, vegetation, and the amount of weathering.

Figure 15.24 -Using Figure 15.24 in your textbook, what was the overall elevation change of Mount St. Helens' peak as a result of the 1980 eruption?

Which of the following types of flow moves the fastest?

What factor allows for the formation of thick regolith?

Bent tree trunks on a slope are indicative of

Which of the following is not a trigger for a mass movement?

Which mass movement is very slow detected only by dislocation or bending of features at the surface?

Figure 15.13 -At which minimum angle will the driving force become greater than the resisting force in a mass movement, according to Figure 15.13 in your textbook?