Depositional Landforms Flashcards

1
Q

Terminal moraine

A

High mound extending across the valley to mark the maximum advance of the ice sheet

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2
Q

Lateral moraine

A

Derived from frost shattering of the valley sides, carried at the edge of the glacier - on melting a side embankment is formed

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3
Q

Recessional moraine

A
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4
Q

Erratics

A

Picked up and carried by ice

Deposited in areas of different geology

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5
Q

Drumlins

A

Smooth, elongated mounds of till ( unsourced rock,clay and sand deposited by ice

50m high and over 1km in length

Smoothed by abrasion with a steep upstream side and a gently sloping downside

Form a swarm

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6
Q

Till sheets

A

Found behind terminal moraine in low-lying areas

Wide areas of flat relief with a covering of glacial till

Variable in composition, dependent on the nature of the rocks over which the ice has been moved.

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