What type of mass wasting involves the greatest amount of water?
47 Cards in this Set
| What is the process that breaks rock material into smaller pieces by atmospheric and biotic agents? | -Weathering |
|---|---|
| What type of mass wasting involves the greatest amount of water? | -Flow |
| What is the distinctive trait of a slump? | -involve movement along a curved surface |
How do you control mass wasting?
Engineering solutions include barriers and retaining walls, drainage pipes, terracing the slope to reduce the steepness of the cuts, and immediate revegetation. Rockfalls can be controlled or eliminated by the use of rock bolts, cables, and screens and by cutting back slopes to lesser gradients.
What are mass wasting controlling factors?
Steep slopes, widely varying altitude ranges (relief), the thickness of the loose earth material, planes of weakness parallel to the slopes, frequent freezing and thawing, high water content in the earth material, dry conditions with occasional heavy rainfall, and sparse vegetation are the factors that contribute to …
How do human activities help trigger mass wasting events?
Humans can contribute to mass wasting in a few different ways: Excavation of slope or its toe. Loading of slope or its crest. Drawdown (of reservoirs)
What is the slowest form of mass wasting?
Soil creep
How can we prevent a landslide?
There are also various direct methods of preventing landslides; these include modifying slope geometry, using chemical agents to reinforce slope material, installing structures such as piles and retaining walls, grouting rock joints and fissures, diverting debris pathways, and rerouting surface and underwater drainage.
Where is the example of a mass wasting disaster?
Noatak National Preserve, Alaska. Mass wasting is the movement of rock and soil down slope under the influence of gravity. Rock falls, slumps, and debris flows are all examples of mass wasting.
What do all mass-wasting events have in common?
Mass-wasting events are classified by their type of movement and material, and they share common morphological surface features. The most common types of mass-wasting events are rockfalls, slides, flows, and creep. Mass-wasting movement ranges from slow to dangerously rapid.
What type of mass movement is fall?
The basic types of landslide movement are: Fall. This is generally characterized by rapid or extremely rapid rate of movement with the descent of material characterized by a freefall period. Falls are commonly triggered by earthquakes or erosion processes.
What is spread in a mass movement?
e) Spreads: A spread is an extension of a cohesive soil or rock mass combined with a general subsidence of the fractured mass of cohesive material into softer underlying material. The rupture surface is not a surface of intense shear. Spreads may result from liquefaction or flow (and extrusion) of the softer material.
What damage does a creep cause?
The damage may be: foundation or framing damage, sewer line damage, roof damage, as well as, doors and window sticking, garage floor and slab cracks, cracks in swimming pools and spas, etc. When your home sits on a lot that has slope creep, the entire home usually moves or shifts, not just one small portion.