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32 Cards in this Set
- Front
- Back
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Land area that contributes water to a stream.
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drainage basin
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Occurs in the valleys of mountains or hills(treelike).
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dendridic drainage
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All the streams that run off of a mountain.
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radial drainage
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Flat dry rocky land.
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rectangular drainage
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Large central river reletivly
flat some elevation. |
trellis drainage
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The beginning of a river.
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head
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A river that connects with a larger river.
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tributary
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Banks where river overflows.
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flood plain
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The lowest level of a river bed.
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base level
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sea level
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the ultamate base level
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In flood plain very curvy and often moves slow.
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shape of an old river
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In "v" shaped valley or chanel moves fast.
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shape of a new river
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Change in elevation.
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gradient
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Narrow equals more rapids faster.
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channel
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What is the outside edge of a
mature river on a bend? |
cutbank
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When rocks tumble in circles on a river bed or chanel creating small depressions.
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pot holes
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Deposite on the river bed in the center or the side.
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sandbar
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Smothe rock silt and sand
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riverbed
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Layers of rock and soil within the ground.
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horizon
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Organic material once living that acts as a fertalizer.
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humus
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Mostly clay,some minerals and nutrients and some small, broken rock.
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subsoil
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Foundation may have a fracture which can be weathered.
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bedrock
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Broken up bedrock most roots can reach here.
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regolith
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Water traped in soil.
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aquifer
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O, A, E, B, C, R
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soil profile
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What is the inside edge of a mature river on a bend?
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point bar
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Top soil includes finer particles and humus.
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O horizon
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Includes some top soil,roots,seeds.Slightly less fine than topsoil.
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A horizon
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Mixture of soil and small gravel.Alot of silt,clay,and sand.Leaching occurs here.
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E horizon
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Subsoil,mostly clay,minerals,
nutrients,and small broken rocks. |
B horizon
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Regolith,broken up bedrock,
most roots can reach here. |
C horizon
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Foundation unweathered bedrock.
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R horizon
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