Glaciers

Question 1

What is an erratic

Answer 1

A rock that differs from the surrounding rock and was transported by ice over a long distance and deposited by a melting glacier

Question 2

What is a drumlin

Answer 2

An egg-shaped formation made it till, formed by ground moraine depositing beneath the glacier

Question 3

What is a moraine?

Answer 3

Unsorted till that’s been deposited by a glacier (particular places for the different moraines)

Question 4

Ground moraine?

Answer 4

Material dragged under the base of the glacier and deposited over a wide area on the valley floor

Question 5

Medial moraine?

Answer 5

Caused by the lateral moraines of two glaciers when they meet

Question 6

Terminal moraine?

Answer 6

A ridge of moraine that marks the furthest extent of the glacier

Question 7

Recessional ?

Answer 7

A ridge of moraine marking a temporary halt in the general retreat of a glacier

Question 8

Lateral moraine?

Answer 8

Ridge of till that builds up at the edge of a glacier and is usually made up of weathered material from the valley sides that has fallen on the glacier

Question 9

What is zone of accumulation?

Answer 9

Part of the glacier where snow falls and is compacted, creating glacial ice, and is found at high altitudes

Question 10

What is zone of ablation?

Answer 10

The part of the glacier where glacial ice melts, found at low altitudes