Streams and rivers
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Streams and Rivers. Video: Grand Canyon. Streams (all notes). Any flowing water. The main agent of erosion on Earth. Discharge. The amount of water in a stream. More discharge = EROSION. Stages of Stream Formation. Youthful Mature Old Age. Youthful. High elevations V-shaped valley

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Streams and Rivers

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Streams and rivers

Streams and Rivers

Video: Grand Canyon


Streams all notes

Streams(all notes)

  • Any flowing water.

  • The main agent of erosion on Earth.


Discharge

Discharge

  • The amount of water in a stream.

  • More discharge = EROSION.


Stages of stream formation

Stages of Stream Formation

  • Youthful

  • Mature

  • Old Age


Youthful

Youthful

  • High elevations

  • V-shaped valley

  • Rapids and waterfalls present

  • No floodplain

  • Capable of moving very large sediment (i.e. boulders)


Youthful1

Youthful


Mature

Mature

  • A few “S”-shaped curves = Meanders

  • Floodplains

  • Not capable of moving large sediment


Mature1

Mature


Old age

Old Age

  • Many meanders

  • Very large floodplain

  • Oxbow lakes

  • Can only carry smallest sediment: silts and clays


Old age1

Old Age


Old age2

Old Age


Oxbow lake

Oxbow Lake


Oxbow lake1

Oxbow Lake


Stream load sediment carried in a stream

Stream Load –Sediment carried in a stream

  • Rolling and Bouncing of large sediment

  • Saltation of sand sized particles

  • Suspension of silt and clay

  • Dissolved salts

    Animation


Terms to know

Alluvial fan

Base level

Bed load

Channel

Delta

Dissolved load

Tributaries

Erosion

Floodplain

Groundwater

Levee (natural)

Meander

Oxbow lake

Rapids

River

Stream

Suspended load

Waterfall

Terms to Know


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