Formation of a Ribbon Lake Flashcards
1
Q
(explain formation of U-shaped valley)
A big + narrow finger shaped lake
Certain parts of the valley are eroded more deeply TIDT
A
thicker ice / softer rock causing increased erosion.
2
Q
A glacier will move over bands of alternating hard + soft rock which will wear away by abrasion TMT
A
the soft rock will be eroded quicker
3
Q
The Ice will melt and outcrops of hard rock are left TMT
A
they act like a dam to keep the water in.
