01
Front
How does erosion differ from weathering?
Back
Erosion removes and moves rock, soil, or sediment; weathering breaks down or alters rock in place.
Free Online Flashcard Deck
2 Erosion and Sediment Transport Free Online FlashCards
Study 2 Erosion and Sediment Transport with 12 free online flashcards. Review key terms, definitions, and concepts with this interactive flashcard deck.
12 cards
02
Front
What can happen when a transporting force weakens?
Back
When the force transporting sediment weakens, sediment may be deposited, building or reshaping landforms.
03
Front
What is traction in sediment transport?
Back
Traction moves particles by rolling or sliding them along the ground or a channel bed.
04
Front
What is mass wasting?
Back
Mass wasting is the downhill movement of loosened material under gravity; examples include rockfalls, landslides, slumps, and debris flows.
05
Front
How can runoff erode a slope?
Back
Runoff can remove soil in a thin layer; as it gathers into channels, it cuts small channels and gullies.
06
Front
How do erosion and deposition shape a river bend?
Back
Faster flow on the outside of a river bend tends to erode a cut bank, while slower flow on the inside deposits sediment to form a point bar.
07
Front
How does a river form an alluvial fan?
Back
An alluvial fan may form when a river leaves steep terrain, spreads onto flatter ground, slows, and deposits sediment.
08
Front
How does wind move different sediment sizes?
Back
Wind commonly carries dust and silt in suspension, moves sand by saltation, and pushes larger grains along the surface by creep.
09
Front
What are two ways glaciers erode bedrock?
Back
Glaciers erode by abrasion, as rock fragments frozen in ice scrape and grind bedrock, and by plucking, which loosens pieces of bedrock.
10
Front
How do till and outwash differ?
Back
Till is an unsorted deposit left by melting ice; meltwater can sort and carry sediment onward, forming deposits such as outwash plains.
11
Front
What is longshore drift?
Back
Longshore drift is the movement of beach sediment roughly parallel to the coastline by waves and currents.
12
Front
What is saltation?
Back
Saltation moves sand-sized particles in short hops; bouncing grains may knock other grains into motion.
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