Ice sheet scoring landforms

Question 1

Rouche Mountonnee

Answer 1

• Resistant rock with a smooth stoss (up valley hill) and jagged lee (down-valley side).
• As ice slides over a resistant rock, smooths the stoss side via abrasion and refreezes on the jagged lee side via plucking.

Question 2

Knock & Lochan

Answer 2

• Small rock hills knock and hollows with lakes lochan.
• ## Scoring (occurs when glaciers expand beyond mountain valleys and erode large areas of low relief land).

Question 3

Crag & Tail

Answer 3

• Mass of large rock forms steep stoss with a sloping tail of deposited material.
• Softer rock protected on the lee creates sloping tail.