Valleys

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Valleys A valley is a surface depression of the Earth. Valleys can have natural boundaries like hills or mountains Expansion Tectonic Activity

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Simply a valley is a low land.

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That’s how it is done!

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Shapes of Valleys V-Shape Valleys U-Shape Valleys

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Types of Valleys 1. River Valleys: They are formed by flowing water. V-Shaped Steep Walls Narrow Bottoms Strong Deep Rivers Shallow Weak Rivers Flood Plains Rich Soil

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River valleys were very important in ancient civilizations. They provided : Water and food WIND SHEILD COOLER TEMPRATURE AT DAYTIME WARMER TEMPRATURE AT NIGHT THE NILE TIGRIS-EUPHRATES YELLOW AMAZON MISSISSIPPI

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2. Glacial Valleys They are carved by huge glaciers since ice ages Erosion is cause by Glacial Till (rocky material) Wide Flat Floor Very steep sides Boulder Clay deposits

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3. Hanging Valleys: A hanging valley is a ,or valley, at a higher relief w ith the floor t han the ,or channel, into which it flows. U-SHAPED DEEP VALLEY WITH VERTICAL SIDES Shallower but hanging above main as surfaces were originally at same elevation

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4. Rift Valleys: fault f lat floor narrow

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Most famous rift valleys: The East African Rift System

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Russia’s Baikal Rift Valley FROM UP FROM DOWN

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Germany’s Rhine Rift Valley

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More Famous Valleys in the World California’s Central Valley, USA

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Death Valley, USA

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Valley of the Sun, USA

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Rhone Valley, Europe

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Danube Valley, Europe

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Valley of Flowers, India

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Indus Valley, Pakistan

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Nile Valley, Egypt

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Valley of the Kings, Egypt

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Great Rift Valley, from Jordan to the Red Sea and Lake Victoria