Unit 4: Weathering, Erosion and Landscapes

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Presentation transcript:

Unit 4: Weathering, Erosion and Landscapes 4.4 Stream Beds Unit 4: Weathering, Erosion and Landscapes December 13, 2011 Sanders

Unit 4: Weathering, Erosion and Landscapes Stream Beds Velocity of a stream is controlled by the slope and amount of water flowing in the stream. April 26, 2019 Unit 4: Weathering, Erosion and Landscapes

Erosion and Deposition Stream beds are constantly eroded and materials deposited. April 26, 2019 Unit 4: Weathering, Erosion and Landscapes

Unit 4: Weathering, Erosion and Landscapes Friction Friction is the reason that streams flow at different rates in the stream bed. April 26, 2019 Unit 4: Weathering, Erosion and Landscapes

Cross Section of a Stream The friction of the stream bed is slowing the flow of the water. April 26, 2019 Unit 4: Weathering, Erosion and Landscapes

Unit 4: Weathering, Erosion and Landscapes Stream Flow Stream moves fastest here. Stream moves slowest here. Stream bed for A-A’ April 26, 2019 Unit 4: Weathering, Erosion and Landscapes

Unit 4: Weathering, Erosion and Landscapes Stream Bed This is an overview of a stream. This is a vertical cross section of XY. Let’s look at the stream bed at XY B & D are at outer banks. C & D are at inner banks. April 26, 2019 Unit 4: Weathering, Erosion and Landscapes

Deposition and Erosion April 26, 2019 Unit 4: Weathering, Erosion and Landscapes

Unit 4: Weathering, Erosion and Landscapes April 26, 2019 Unit 4: Weathering, Erosion and Landscapes

Unit 4: Weathering, Erosion and Landscapes Depostion April 26, 2019 Unit 4: Weathering, Erosion and Landscapes