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Free Online Flashcard Deck

4 Landform Development and Surface Processes Free Online FlashCards

Study 4 Landform Development and Surface Processes with 12 free online flashcards. Review key terms, definitions, and concepts with this interactive flashcard deck.

12 cards
01
Front

What is weathering?

Back

Weathering breaks down or alters rock in place, without moving it.

02
Front

How do mechanical and chemical weathering differ?

Back

Mechanical weathering fragments rock without changing its mineral composition; chemical weathering changes or dissolves minerals.

03
Front

What does erosion do?

Back

Erosion removes material from a surface; in everyday earth science usage, it often includes moving that material.

04
Front

When does deposition occur?

Back

Deposition happens when a transporting agent can no longer carry its sediment load, or conditions favor sediment accumulation.

05
Front

How do erosion and deposition differ across a meander bend?

Back

Faster flow along the outside of a bend erodes a cut bank; slower flow along the inside deposits sediment in a point bar.

06
Front

How does an oxbow lake form?

Back

An oxbow lake forms when a river cuts through a narrow meander neck, leaving the abandoned bend separated from the channel.

07
Front

How do natural levees form?

Back

During floods, water spills over riverbanks and deposits sediment across the floodplain; repeated deposition can build natural levees.

08
Front

What is longshore sediment transport?

Back

Longshore sediment transport is the movement of sediment parallel to the coast, carried by longshore currents created by angled waves.

09
Front

How does glacial abrasion erode bedrock?

Back

Glacial abrasion occurs when rock fragments in basal ice grind against the ground, wearing down bedrock.

10
Front

What is a moraine?

Back

A moraine is a ridge of glacial debris deposited as a glacier melts or retreats.

11
Front

What is glacial outwash?

Back

Outwash is sediment carried and sorted by meltwater flowing away from a glacier.

12
Front

How does an alluvial fan form?

Back

An alluvial fan builds when a stream leaves a steep mountain front, loses energy, and deposits sediment.