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15 Cards in this Set

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Watershed.
The area where all surface water flows toward the river. A drainage basin.
Alluvial Fan.
Large, triangle-shaped deposit of sediment, often at the base of a mountain.
Gradient.
How far does the river drop from one place to another? (slope or stream)
Discharge.
How much water flows through the river?
Channel Geometry.
What’s the shape of the channel?
Lifting effect.
The water splits off rock fragments which are in its path and carries them away.
Abrasion.
The water uses the loose material it has picked up to scour out the riverbed. The particles carried in the water act like sandpaper, and the particles themselves get broken down and rounded off.
Streamload.
Any sediment that a stream carries.
Solution.
Dissolved materials that are carried by a stream (25%)
Suspension.
Silt and clay sized particles float along in a stream. They are ‘suspended’ above the streambed (50%)
Bedload.
Sand, gravel, pebbles, and boulders that are pushed and bounced along on the riverbed. (25%)
Meanders.
A bend or curve in a river.
Cut-off.
When the outside edges of two meanders meet and the water can plow straight through without ‘going through the loop.’
Oxbow Lake.
The ‘Loop’ of the cut-off that gets sectioned off from the rest of the river by deposition.
Deltas.
A large triangle-shaped deposit of sediment that creates a shallow sandy area in the water near the mouth of a river.