Erosion and Deposition
What is it called when sediment and other materials are moved from one place to another?
erosion
What are the three things that affect what a stream can carry?
Gradient, load, discharge
What are mounds of wind-deposited sand?
dunes
What is a large mass of moving ice that forms by the compacting of snow by natural forces?
glacier
What is the shifting of materials influenced by gravity?
mass wasting
What is it called when eroding material is dropped off at a new location?
deposition
What is gradient?
the slope
Daily Double*
What is the removal of small grains of sediment and soil by wind?
*add or subtract the points twice
deflation
What are giant thick sheets of ice that can cover large areas?
continental glaciers
What is a rockfall?
What usually occurs when wind slows down?
deposition
What is discharge?
The amount of water that a stream carries.
What is abrasion?
the wearing away of rock by rock
What kind of valleys do alpine glaciers form?
u-shaped valleys
What is happening when a large amount of water mixes with soil and rock, causing a rapid mass movement of a large mass of mud?
mudflow
What are the four things that help shape the earth?
gravity, water, wind, and ice
What is the load?
the materials carried
Where are dunes usually found?
deserts
What are the materials carried & deposited by a glacier when it melts?
glacial drift
What is creep?
the extremely slow movement of material downslope
What is sediment?
tiny grains of broken-down rock
What landforms can streams create? (must get all three. no partial credit)
floodplain, delta, alluvial fan
What is loess?
thick deposits of fine wind-blown sediment
What do continental glaciers do to erode the earth?
What is a landslide?
sudden and rapid movement of a large amount of material down a slope