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Ch 7 Erosion and Deposition
Terms in this set (23)
What 3 actions work together in a cycle to wear down and build up Earth's surface?
weathering, erosion, and deposition
What is the force that moves rock and other materials downhill?
What does gravity cause?
What are the 4 types of mass movement?
landslides, mudslides, slump, and creep
How quickly does mass movement move?
It can be rapid (fast) or slow.
What is the major agent of erosion that has shaped earth's land surface?
How can a river create valleys, waterfalls, flood plains, meanders, and oxbow lakes?
What creates landforms such as alluvial fans and deltas?
What adds soil to a river's flood plain?
How does groundwater cause erosion?
by chemical weathering
What are the two kinds of glaciers?
continental glaciers and valley glaciers
What is a continental glacier?
a glacier that covers much of a continent
What is a valley glacier?
a long narrow glacier that forms when snow and ice build up high in a mountain valley
What is plucking?
a glacier picking up rock
What is abrasion?
when a glacier gouges and scratches bedrock
What happens when a glacier melts?
It deposits the sediment it eroded from the land, creating various landforms
Where does the energy in waves come from?
wind that blows across the water's surface
How do waves shape the coast?
through erosion by breaking down rock and transporting sand and other sediment
What happens when waves deposit sediment?
Coastal features such as beaches, spits, and barrier beaches are formed
What two ways does wind cause erosion?
by deflation and abrasion
What is a sand dune?
a deposit of wind blown sand
What is the weakest agent of erosion?
What is formed by wind erosion an deposition?
sand dunes and loess deposits
Recommended textbook explanations
Earth and Laboratory Manual for Introductory Geology
Holt Earth Science
Arthur T. DeGaetano, Jay M. Pasachoff, Mead A. Allison
Edward J. Tarbuck
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