Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
What is the driving force of mass movement?
|
gravity
|
|
|
Mass movements are classified according to how fast they move. How do mass movements move?
|
Some mass movements move slow and others move fast.
|
|
|
What should you know about a slope?
|
Earth materials do maintain their shape or integrity. Materials are more coherent, not as plastic as a debris flow, except in the area of the toe.
|
|
|
Will a geologic report ensure thant you will never have any sloe instability problems?
|
No
|
|
|
The angle of repose is defined as the _________ to which dry loose material can accumulate.
|
Maximum stable angle
|
|
|
Describe the speed of the following mass movements?
rock falls soil creep debris flows |
rock falls: rapid
soil creep: slow debris flows: rapid |
|
|
Name three ways to recognize the presence of mass movements.
|
a. scarps
b. rolling topography c. tilted trees (this is only 3 out of 9) |
|
|
Name three factors that aid gravity in causing slope instability.
|
a. water
b. earthquakes c. forest fires (this is only 3 out of 9) |
|
|
Which sloope is more stable, a dip slope, or a slope where the beds dip into the hillside?
|
dip slope
|
|
|
Would you expect to find permafros in
Texas, Greenland, Alaska, and Egypt |
Only in Greenland and Alaska
|
|
|
What are two types of fluid flow?
|
Laminar and Turbulant
|
|
|
Do the following parameters increase or decrease in a down stream direction?
|
The gradiant decreases, and all others increase.
|
|
|
Define discharge?
|
The amount of water passing a given point per unit in time.
|
|
|
Can a stream erode its channel below base leve?
|
No
|
|
|
The lowest part of Death Valley is -282 ft. What is the current base level elevation of the streams that flow into Death Valley?
|
-282 ft.
|
