1/15
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
Glacial erosion landforms
Features formed by abrasion and plucking.
Cirques/Corries
Large, armchair shaped hollow containing a lake. Cirques form when snow collects in a hollow on a mountain, turns into ice, and the glacier erodes the rock.
Arete
A narrow, knifelike ridge between two cirques. An arête forms when two glaciers erode back-to-back cirques on a mountain, carving away the rock.
Pyramidal Peak
Where several corries meet at a central point
U-shaped valley
valley shaped like a U it has steep sides and a wide flat floor. A U-shaped valley forms when a glacier moves through a V-shaped river valley, eroding the sides and bottom.
Ribbon lake
A long, narrow lake in the bottom of a U-shaped valley. A ribbon lake forms when a glacier erodes a deeper section of a U-shaped valley, and meltwater fills it after the glacier melts.
Hanging Valley
A small valley that “hangs” above a bigger one. It forms when a smaller glacier joins a larger glacier, but erodes the land less deeply.
Glacial deposition
When a glacier melts, it deposits the sediment it eroded from the land, creating various landforms.
Drumlin
A drumlin forms when a glacier moves over soft sediment and shapes it into a smooth, elongated hill.
Medial moraine
A moraine formed when two advancing valley glaciers come together to form a single ice stream, forms in the middle of the glacier.
Recessional moraine
Marks the pauses in the retreat of a glacier.
Lateral moraine
Moraine that forms along the side of a glacier
Terminal moraine
A moraine deposited at the point of furthest advance of a glacier or ice sheet.
Plucking
when a glacier freezes onto rocks and then pulls them away as it moves.
Abasion
Abrasion is when a glacier scrapes and smooths the ground as it moves over it
Eskers
An esker forms when meltwater rivers flow under a glacier, carrying and depositing sand and gravel.