Podcast
Questions and Answers
What is an arête?
What is an arête?
What creates a horn?
What creates a horn?
What is a hanging valley?
What is a hanging valley?
What forms a lateral moraine?
What forms a lateral moraine?
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What is a medial moraine?
What is a medial moraine?
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What marks the furthest point of glacial advance?
What marks the furthest point of glacial advance?
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What forms a recessional moraine?
What forms a recessional moraine?
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What does a terminal (end) moraine consist of?
What does a terminal (end) moraine consist of?
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What happens to lateral moraines as the glacier moves?
What happens to lateral moraines as the glacier moves?
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Where do waterfalls generally occur?
Where do waterfalls generally occur?
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Study Notes
Glacial Features
- An arête is a sharp-crested ridge formed by the convergence of two or more glaciers, which results in the erosion of the surrounding rock.
Mountain Peaks
- A horn is created by the erosion of three or more glaciers, which converge to form a sharp, peak-like feature.
Valleys
- A hanging valley is a valley that is higher than the main valley, formed when a tributary glacier flows into a larger glacier, which then carves out a deeper valley.
Moraines
- A lateral moraine is a ridge of rocks and debris that forms along the sides of a glacier, as a result of the accumulation of rocks and soil.
- A medial moraine is a ridge of rocks and debris that forms when two or more glaciers merge, and their lateral moraines combine.
- A terminal (end) moraine consists of a ridge of rocks and debris that marks the furthest point of glacial advance, and is formed when the glacier stops moving and deposits its load.
Glacial Movement
- As the glacier moves, lateral moraines are pushed forward and can merge with the terminal moraine.
- A recessional moraine is a series of ridges formed when a glacier retreats, leaving behind a series of deposits.
Waterfalls
- Waterfalls generally occur where a stream flows over a steep drop in the landscape, often at the point where a hanging valley meets the main valley.
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Description
Test your knowledge of glacial landforms with this quiz. Identify and learn about arêtes, horns, and hanging valleys that are formed as a result of glacial erosion and deposition.
