Physical Features Of Fold Mountains Flashcards


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created 12 years ago by MegaKenneth99
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1

U shaped valley

A valley that's in a shape of a "U" due to the over deepening by a glacier

2

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

3

What features does a U-shaped valleys have

Hanging valleys

4

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

5

Anticline

An upward curving fold

6

How do anticlines form?

It is formed from the upward movement of the rocks

7

Syncline

A downward curving fold

8

How do synclines form?

A downward movement of the rocks, it also forms valleys

9

Snowfields

A permanent expanse of snow that does not melt away

10

How do snowfields form

When leftover snow accumulates

11

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

12

Pyramidal Peaks

Mountain tops that have been modified by the action of ice during glaciation and frost weathering periods

13

How do pyramidal peaks form?

When three or more cirques meet

14

What are the features of the pyramidal peaks?

-Triangular peaks
-Arete (Sharp mountain ridge)
-Corrie lake
-Corrie