LEQ: How do erosion and deposition affect Earth’s surface? TYPES OF LANDFORMS CAUSED BY EROSION &...
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Transcript of LEQ: How do erosion and deposition affect Earth’s surface? TYPES OF LANDFORMS CAUSED BY EROSION &...
LEQ: How do erosion and deposition affect Earth’s surface?
TYPES OF LANDFORMS CAUSED BY EROSION
& DEPOSITION
Landforms created when sediment is removed from an area are caused by __________.
Landforms created when sediment is placed or dropped in a new area are caused by __________________.
REMEMBER….
What erosional force causes Mass Movements?_______________
Name the four types of mass movement.1._____________/__________2._______________3._______________4._______________
EROSION BY GRAVITY
EROSION BY GRAVITY
_________
_____________
_________lide
___________
Any water that runs over the Earth’s surface is considered __________.
Moving water is a MAJOR agent of __________!
Some areas have more runoff than others. HILLY areas have more runoff than flat areas.Areas with a LOT of rain have more runoff than areas with little rain.
Areas with FEW plants have more runoff than areas with many plants.
RUNNING WATER
Like the other agents of erosion, running water creates MANY different Landforms._______________ ____________________________ Fan (p. 215)Meander______________Flood PlainsDeltas
Let’s look at the picture & decide if they were created by erosion or deposition (p. 216-217)
RUNNING WATER
V-Shaped ValleyRunning Water _________River flows through a deep ____- _________ valley near its source. As the river flows, it cuts the valley ________.
RUNNING WATER
RUNNING WATER
WaterfallsRunning water___________When the river flows over hard rock that is difficult to erode it creats steep drops or waterfalls.
RUNNING WATER CONT.
RUNNING WATER - WATERFALL
Alluvial FansRunning Water __________A wide, sloping deposit of sediment formed where a stream leaves a mountain range.
RUNNING WATER CONT.
RUNNING WATER – _________ _______
MeandersRunning Water _________A loop-like bend in the course of a river (p. 214)
RUNNING WATER CONT.
RUNNING WATER - _________
Oxbow LakeRunning Water _________A meander that has been cut off from the river. (p.214)
RUNNING WATER CONT.
RUNNING WATER – ________ _______ LAKE
Flood PlainsRunning water ___________The FLAT area on the banks of the river where rich soil develops when the river drops sediments when it floods.
RUNNING WATER CONT.
RUNNING WATER – _________ ________
DeltasRunning Water ___________Where the river flows into the ocean, it deposits sediments, forming a delta.
RUNNING WATER CONT.
RUNNING WATER - _________
•Wave Cut Cliff•Wave __________•A cliff cut away by waves
•Spit•Wave ____________•Formed as sand deposits along the shore (looks like a finger)
FIND WAVES…
Sand BarWave _____________Formed by wave action; deposit of sand.
WAVES CONT.
PICTURES
• Caves•Groundwater _______________•Water reacts with limestone in rocks & dissolves it, leaving a cave behind.
• Stalagmite•Groundwater DEPOSITION• Slow dripping builds up cones from the cave floor.
FIND GROUNDWATER…
StalactiteGroundwater _______________Hangs like an icicle from the roof of cave; deposit of calcite
Karst TopographyGroundwater EROSIONA sinkhole created when the roof of a cave collapses
GROUNDWATER CONT.
PICTURES
KARST TOPOGRAPHY
•Loess•Created by Wind ___________•Fine, wind deposited sediment
•Sand Dune•Wind DEPOSITION•Found near beaches & deserts; hills of sand
FIND WIND…
PICTURES
•U-Shaped Valley•Glacial ____________•A valley scooped out by a glacier
•Kettle•Glacial _____________•Forms when a depression, left from glacial till, is filled in by melting ice.
FIND GLACIERS…
MoraineGlacial ___________Formed where a glacier deposits mounds or ridges of till
GLACIERS CONT.
PICTURES