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32 Cards in this Set

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