Questions and Answers
What is erosion?
What is deposition?
Agents of erosion drop the sediments they are carrying as they lose energy.
What is mass movement?
Any type of erosion that happens as gravity moves minerals downslope.
What is a slump?
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What is creep?
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What is a glacier?
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What is plucking?
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What is till?
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What is a moraine?
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What is outwash?
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What is deflation?
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What is abrasion?
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What is loess?
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What is a dune?
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Study Notes
Erosion and Related Processes
- Erosion: A process that wears away surface materials and transports them to different locations.
- Deposition: Occurs when erosion agents drop sediments as they lose energy, leading to sediment accumulation.
- Mass Movement: Involves erosion processes where gravity causes materials to move downslope.
Types of Mass Movement
- Slump: A type of mass movement where material slips down a curved surface, characterized by distinct features.
- Creep: A slow, gradual process where sediments shift downhill over time.
Glacial Movement and Effects
- Glacier: A significant mass of ice and snow that moves over land, impacting the landscape.
- Plucking: A glacial process where ice and meltwater infiltrate rock cracks, freeze, and fracture the rock, prompting erosion.
- Till: Refers to a heterogeneous mixture of sediment sizes, typically left behind by glacial activity.
- Moraine: A prominent ridge formed by the accumulation of debris pushed along by glaciers, resembling a bulldozer's path.
- Outwash: Sediments deposited by glacial meltwater, commonly found beyond the glacier's terminus.
Wind Erosion
- Deflation: A wind erosion process that removes small particles from loose sediment, altering the landscape.
- Abrasion: Occurs when windblown sediments strike rock surfaces, leading to physical wear and tear.
- Loess: Refers to wind-blown deposits of fine sediments, contributing to soil formation in various regions.
- Dune: A natural mound formed by the accumulation of sediments that have been shifted by wind action.
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Description
Test your knowledge on key terms related to erosion with these flashcards from Chapter 8 of your geology textbook. Understand essential concepts like deposition and mass movement, and how these processes shape our landscape. Perfect for students looking to reinforce their learning.
