GLACIATED LANDFORMS

Question 1

corrie

Answer 1

Armchair-shaped hollows formed by freeze-thaw, plucking, and rotational slip.

Question 2

arête

Answer 2

Narrow ridge formed when two corries erode back-to-back.

Question 3

pyramidal peak

Answer 3

Sharp summit formed by three or more corries eroding a mountain.

Question 4

u shaped valley

Answer 4

Steep-sided, flat-floored valley formed by abrasion and plucking as a glacier moves down a river valley.

Question 5

hanging valley

Answer 5

Smaller valleys left “hanging” above the main trough; tributary glaciers erode less deeply.

Question 6

truncated spurs

Answer 6

Ridges cut off by glacier erosion, leaving steep cliff-like edges.

Question 7

drumlin

Answer 7

Elongated hills of till; blunt end faces upstream; formed by ice reshaping deposited material.

Question 8

erratics

Answer 8

Large rocks transported from origin by ice, left behind as ice melts.

Question 9

outwash plain

Answer 9

Sorted sands/gravel deposited by meltwater beyond the glacier.

Question 10

eskers

Answer 10

Long sinuous ridges of sand/gravel deposited in subglacial meltwater tunnels.

Question 11

james

Answer 11

Mounds of sorted sediment deposited by meltwater in ice hollows or lakes.

Question 12

kame terrace

Answer 12

Ridges of sediment at valley sides, from meltwater between glacier and valley wall.

Question 13

moulins

Answer 13

Vertical shafts where surface meltwater enters glacier.

Question 14

moraine

Answer 14

• Lateral – Along valley sides.
• Medial – Middle, from two glaciers merging.
• Terminal – At the snout; shows max extent.
• Recessional – Behind terminal; pauses in retreat.
• Formed from till dropped as glacier melts.