Water On The Land: River Landforms Flashcards Preview

Geography > Water On The Land: River Landforms > Flashcards

Flashcards in Water On The Land: River Landforms Deck (14)
1

How are MEANDERS formed?

By erosion and deposition.

2

In which courses do meanders form?

middle and Lower courses.

3

Where is the CURRENT faster? Why?

Outside bend.
River channel is deeper.
Less friction to slow down the water.

4

Where does MORE erosion take place? What does it form?

Outside bend, forming river cliffs.

5

Why is the current SLOWER on the inside bend?

River channel is shallower.
More friction to slow down water.

6

Where is the eroded material DEPOSITED?

On the inside bend.

7

What does the eroded material FORM?

Slip-off slopes.

8

How are OX-BOW LAKES formed?

From meanders.

9

First step in forming an OX-BOW LAKE?

Erosion causes outside bends to get closer.

10

Second step in forming an OX-BOW LAKE?

Until there's only a small bit of land left between the bends. (Called the neck)

11

Third step in forming an OX-BOW LAKE?

River breaks through the land, usually during a flood.

12

Fourth step in forming an OX-BOW LAKE?

River flows along the shortest course

13

Fifth step in forming an OX-BOW LAKE?

Deposition eventually cuts of the meander

14

Sixth step in forming an OX-BOW LAKE?

When the ox-bow lake is formed?

Decks in Geography Class (39):