Erosion and Deposition

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CHAPTER
NEW CHAPTER
Erosion and Deposition
Water, wind, and ice shape Earths surface.
5.1
Forces wear down and build up Earths surface.
5.2
Moving water shapes land.
5.3
Waves and wind shape land.
5.4
Glaciers carve land and move sediments.
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5.1
Forces wear down and build up Earths surface.
Water, wind, and ice move sediment in the process
called erosion.
erosion
deposition
mass wasting
SECTION OUTLINE
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5.1
Forces wear down and build up Earths surface.
Water, wind, and ice move sediment in the process
called erosion.
The placement of sediment in a new location is
deposition, part of the erosion process.
erosion
deposition
mass wasting
SECTION OUTLINE
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erosion
5.1
Forces wear down and build up Earths surface.
erosion
deposition
mass wasting
The process in which sediment is picked up and
moved from one place to another.
KEY CONCEPT SUMMARY
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deposition
5.1
Forces wear down and build up Earths surface.
erosion
deposition
mass wasting
The process in which transported sediment is laid
down.
KEY CONCEPT SUMMARY
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mass wasting
5.1
Forces wear down and build up Earths surface.
erosion
deposition
mass wasting
The downhill movement of loose rock or soil.
KEY CONCEPT SUMMARY
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Moving water shapes land.
5.2
Water drains from land in drainage basins, which
are separated by divides.
drainage basin
divide
floodplain
alluvial fan
delta
sinkhole
SECTION OUTLINE
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Moving water shapes land.
5.2
Water drains from land in drainage basins, which
are separated by divides.
As water flows over land and underground, it
moves sediment and changes land features.
drainage basin
divide
floodplain
alluvial fan
delta
sinkhole
oxbow lakes
meanders
SECTION OUTLINE
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Moving water shapes land.
5.2
Water drains from land in drainage basins, which
are separated by divides.
As water flows over land and underground, it
moves sediment and changes land features.
drainage basin
divide
floodplain
alluvial fan
delta
sinkhole
SECTION OUTLINE
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drainage basin
5.2
Moving water shapes land.
drainage basin
divide
floodplain
An area of land in which water drains into a
stream system. The borders of a drainage basin
are called divides.
alluvial fan
delta
sinkhole
KEY CONCEPT SUMMARY
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divide
5.2
Moving water shapes land.
drainage basin
divide
floodplain
A continuous high line of land (or ridge) from
which water drains to one side or the other.
alluvial fan
delta
sinkhole
KEY CONCEPT SUMMARY
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floodplain
5.2
Moving water shapes land.
drainage basin
divide
floodplain
A flat area of land on either side of a stream
that becomes flooded when a river overflows its
banks.
alluvial fan
delta
sinkhole
KEY CONCEPT SUMMARY
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alluvial fan
5.2
Moving water shapes land.
drainage basin
divide
floodplain
A fan-shaped deposit of sediment at the base of a
slope, formed as water flows down the slope and
spreads at the bottom.
alluvial fan
delta
sinkhole
KEY CONCEPT SUMMARY
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delta
5.2
Moving water shapes land.
drainage basin
divide
floodplain
An area of land at the end, or mouth, of a river
that is formed by the buildup of sediment.
alluvial fan
delta
sinkhole
KEY CONCEPT SUMMARY
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sinkhole
5.2
Moving water shapes land.
drainage basin
divide
floodplain
An open basin that forms when the roof of a
cavern becomes so thin that it falls in.
alluvial fan
delta
sinkhole
KEY CONCEPT SUMMARY
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Waves and wind shape land.
5.3
The action of water moves sand and builds up new
landforms, such as sandbars and barrier islands.
longshore drift
longshore current
sandbar
barrier island
dune
loess
SECTION OUTLINE
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Waves and wind shape land.
5.3
The action of water moves sand and builds up new
landforms, such as sandbars and barrier islands.
longshore drift
longshore current
sandbar
barrier island
dune
loess
SECTION OUTLINE
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Waves and wind shape land.
5.3
The action of water moves sand and builds up new
landforms, such as sandbars and barrier islands.
longshore drift
Wind forms dunes.
longshore current
sandbar
barrier island
dune
loess
SECTION OUTLINE
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longshore drift
5.3
Waves and wind shape land.
longshore drift
longshore current
sandbar
The zigzag movement of sand along a beach, caused
by the action of waves.
barrier island
dune
loess
KEY CONCEPT SUMMARY
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longshore current
5.3
Waves and wind shape land.
longshore drift
longshore current
sandbar
The overall direction and movement of water as
waves strike the shore at an angle.
barrier island
dune
loess
KEY CONCEPT SUMMARY
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sandbar
5.3
Waves and wind shape land.
longshore drift
longshore current
sandbar
A ridge of sand built up by the action of waves
and currents.
barrier island
dune
loess
KEY CONCEPT SUMMARY
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barrier island
5.3
Waves and wind shape land.
longshore drift
longshore current
sandbar
A long, narrow island that develops parallel to a
coast as a sandbar builds up above the waters
surface.
barrier island
dune
loess
KEY CONCEPT SUMMARY
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dune
5.3
Waves and wind shape land.
longshore drift
longshore current
sandbar
A mound of sand built up by wind.
barrier island
dune
loess
KEY CONCEPT SUMMARY
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loess
5.3
Waves and wind shape land.
longshore drift
longshore current
sandbar
Deposits of fine-grained, wind-blown sediment.
barrier island
dune
loess
KEY CONCEPT SUMMARY
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Glaciers carve land and move sediments.
5.4
Glaciers are large bodies of ice
glacier
till
moraine
kettle lake
SECTION OUTLINE
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Glaciers carve land and move sediments.
5.4
Glaciers are large bodies of ice
that change landscapes as they move.
glacier
till
moraine
kettle lake
SECTION OUTLINE
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glacier
5.4
Glaciers carve land and move sediments.
glacier
till
moraine
A large mass of ice that exists year-round and
moves over land.
kettle lake
KEY CONCEPT SUMMARY
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till
5.4
Glaciers carve land and move sediments.
glacier
till
moraine
Sediment of different sizes left directly on the
ground by a melting, or retreating, glacier.
kettle lake
KEY CONCEPT SUMMARY
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moraine
5.4
Glaciers carve land and move sediments.
glacier
till
moraine
A deposit of till left behind by a retreating
glacier. Moraines can form along a glaciers
sides and at its end.
kettle lake
KEY CONCEPT SUMMARY
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kettle lake
5.4
Glaciers carve land and move sediments.
glacier
till
moraine
A bowl-shaped lake that was formed as sediment
built up around a block of ice left behind by a
glacier.
kettle lake
KEY CONCEPT SUMMARY
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5.1
Forces wear down and build up Earths surface.
I. Forces wear down and build up Earths surface.
erosion
A. Natural forces move and deposit sediments.
deposition
B. Gravity can move large amounts of rock and
soil.
mass wasting
1. Mass Wasting of Rock
2. Mudflow
3. Slumps and Creep
KEY CONCEPT SUMMARY
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Moving water shapes land.
5.2
II. Moving water shapes land.
drainage basin
A. Streams shape Earths surface.
divide
1. Drainage Basins and Divides
floodplain
2. Valleys and Floodplains
alluvial fan
3. Stream Channels
delta
4. Alluvial Fans and Deltas
sinkhole
B. Water moving underground forms caverns.
KEY CONCEPT SUMMARY
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Waves and wind shape land.
5.3
III. Waves and wind shape land.
longshore drift
A. Waves and currents shape shorelines.
longshore current
1. Shorelines
sandbar
2. Sandbars and Barrier Islands
barrier island
B. Wind shapes land.
dune
loess
1. Dune Formation
2. Loess
3. Desert Pavement
KEY CONCEPT SUMMARY
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Glaciers carve land and move sediments.
5.4
IV. Glaciers carve land and move sediments.
glacier
A. Glaciers are moving bodies of ice.
till
1. Extent of Glaciers
moraine
2. Alpine Glaciers
kettle lake
3. Continental Glaciers
B. Glaciers deposit large amounts of sediment.
1. Moraines
2. Lakes
KEY CONCEPT SUMMARY