Snowdonia local case study of a glaciated environment:

Question 1

Location/characteristics:

Answer 1

• A glacial landscape in North Wales.
• Upland areas of snowdonia show many landforms.
• The area is no longer glaciated since the landforms formed.
• Landforms have been modified by periglacial processes and more recently fluvial action, weathering and human processes.

Question 2

All the glacial landforms at Snowdonia:

Answer 2

U-shaped valley = Nant Francon.
Truncated spur - Y Gribin.
Arête = Y Gribin
Moriane = found around Llyn Idwal.
Kame and Esker = Pentir
Outwash plain = Conwy Bay.
Blockfields = Glyder Fach.
Corries and Tarns =

Question 3

U- shaped valley name and facts about it …

Answer 3

• Nant Francon.
• Formed by a glacier that flowed in the direction towards the coast at Anglesey.
• River Ogwen flows in the valley now.

Question 4

Corries and Tarns names and facts about it …

Answer 4

• Llyn Idwal = Tarn
• Cwm Idwal = Corries

Formed by tributary glaciers.

Question 5

Truncated spur name and facts about it …

Answer 5

• Y Gribin
• Formed when interlocking spurs were truncated from the Nant Francon glacier.

Question 6

Arête name and facts about it …

Answer 6

• Y Gribin.

Sharp ridge, caused by corries eroding either side of the ridge.

Question 7

Moraine name and facts about it …

Answer 7

• Llyn Idwal.

Terminal moraine found at the mouth of the tarn.

Lateral moraine on the west side of the tarn

Question 8

Kame and esker name and facts about it …

Answer 8

• Pentir.
• Formed by meltwater from the Nant Ffrancon glacier.

Question 9

Outwash plain name and facts about it …

Answer 9

• Conwy Bay.
• Clear layer of glacial deposits.

Question 10

Blockfields name and facts about it …

Answer 10

• Summit of Glyder Fach.

Caused by frost action weathering.