U shaped valley
A valley that's in a shape of a "U" due to the over deepening by a glacier
How are U-shaped valleys formed?
Stage 1: Before the valley was V shaped due to rivers.
Stage 2: When a glacier from higher ground flows down the river it scrapes and rubs against the "V" shaped valley, stones and rocks that flow with the glacier deepen and smoothen the valley
Stage 3: What is left is a deeper, steeper and larger U shaped valley
What features does a U-shaped valleys have
Hanging valleys
What are hanging valleys?
They are valleys high upon the sides of the main valley that had been deepened. Streams flowing down this hanging valley may result in a waterfall
Anticline
An upward curving fold
How do anticlines form?
It is formed from the upward movement of the rocks
Syncline
A downward curving fold
How do synclines form?
A downward movement of the rocks, it also forms valleys
Snowfields
A permanent expanse of snow that does not melt away
How do snowfields form
When leftover snow accumulates
What are the features of snowfields
Commonly found on high peaks and head of glaciers
Usually found below the snow linesWhat are th ef features of pyrimidal peaks
Pyramidal Peaks
Mountain tops that have been modified by the action of ice during glaciation and frost weathering periods
How do pyramidal peaks form?
When three or more cirques meet
What are the features of the pyramidal peaks?
-Triangular peaks
-Arete (Sharp mountain ridge)
-Corrie lake
-Corrie