CH 27 27.2 Flashcards
Weathering
Process that involves the physical or chemical breakdown of materials on earths surface.
Soil
Mixture of weathered rock, organic matter, water, and air that is capable of supporting plant life.
Erosion
Removal of surface materials through the processes of weathering.
Sediment Transport
posses of moving eroded materials from one place to another through the movement of water, ice, wind and due to gravity.
Deposition
dropping of sediment previously in transport as the erosion agent slows down, or in the case of ice, melt.
Drainage Basin
land areas that gathers water for a major river or several major river systems,
longshore current
moment of water, and often, sediment, parallel to the shoreline.
What is the difference between wreathing and erosion?
Weathering is the breakdown materials and erosion is the removal
As the slope of river decreases
The rivers speed decrease
What are
What shape do young rivers make due to fast movement?
V-shape
what types of Rivers are wide with smooth and gentle slopes
Mature
When rivers flood and drop there sediment load?
Flood plains
What are fan shaped sediments deposits will form at the mouth of a river?
Deltas
What are the branching channels that are created by delta?
Distributaries
Where the mouth of a river or stream enters dry land?
Alluvial fans
What are the two types of glaciers?
Valley and continental glaciers
Where do valley glaciers form?
High mountainous regions
Where are the two glaciers located
One in Greenland and in Antarctic
What is a cirque?
Bowl shaped basin
What is an Arete?
long sharp ridgeline
What is a horn?
Sharpened peaks
What do tributary glaciers create?
Hanging vallies
what are tributary glaciers?
small glaciers that feed into big glaciers
What shape of valley glaciers create?
U- shaped valleys
Which side of a sand doom does an erosion occur?
windward side
Which side does deposition occur on sand dummes?
leeward side
what is the removal of small particles by wind leaving heavier particles behind?
Deflation
When small particles are removed the remaining surface is called?
desert pavement
what dies the shape and sizes of land forms depend on?
wind speed, amount of time the wind blows,and sediment supply
What are three land forms created by wave erosion?
Coastal cliff, sea stacks, and sea arches
what are two samples of wave depostion?
Sand bars and sand spits
what is a sandbar?
Land forms that are parallel to the shoreline
what is a sand spit?
Sandbars that extend into the water from land and curve back toward land in a hook shape
what is mass wasting caused by?
snow, heavy rain, earthquakes, or human wasting, mass wasting results
what are examples of mass wasting?
rock slides, mudflows, landslides
