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Objective 12/06/11. Explain how landforms are created through erosional processes . Intro. How is erosion different from weathering?. Erosional Landforms. Erosional Landforms. Erosion. - PowerPoint PPT PresentationTRANSCRIPT
Intro
Objective 12/06/11Explain how landforms are created through erosional processes
How is erosion different from weathering?
EROSIONAL LANDFORMS
Erosional Landforms Erosion A gravity driven
process that moves solids (sediment, soil, rock and other particles) from their source and deposits them elsewhere.
Erosional Landforms What causes
erosion? Mostly water and
wind Rain, snow, sleet Ice, glaciers Rivers, streams Ocean waves
Erosional Landforms Rain, snow, sleet
(weather) Dissolves rock,
freezes and expands rock, or washes rock away
Erosional Landforms Ice, glaciers Sediment picked
up into the glacier and carried
Erosional Landforms Rivers & Streams Cut through the
landscape, move rock from one place to another
Erosional Landforms Ocean Waves Erode the
shorelines of the land with power and force
Erosional Landforms Shoreline
Erosional Landforms
Headlands Sea Cave Sea Arches Sea Stacks Wave Cut
Terrence Beaches
Headlands
Sea Caves
Sea Arches
Sea-Stacks
Wave-cut Terraces
Beaches
Erosional Landforms What happens to
eroded rock? Rock that is
eroded is carried towards the ocean as sediment Becomes sand Becomes deltas Becomes sea-bed
Erosional Landforms Ways to stop sand
movement: Groins Jetties Breakwaters
Erosional Landforms (Groins)
Erosional Landforms (Jetties)
Erosional Landforms (Breakwaters)
Erosional Landforms Summary:
What is erosion? What causes erosion? What are some shoreline erosional
landforms? What are some ways to stop our shorelines
from eroding away?
Objective 12/06/09
Outro
Explain how landforms are created through erosional processes.
Using a Flow-Map, show how headlands can eventually become beaches.