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17 Cards in this Set

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glacier
large, long lasting mass of ice which forms on the land & moves downslope because of gravity
valley glacier
glacier that is confinced to a valley & flows from higher to lower elevations
glacial erosion
formation of u-shaped valleys, parallel scratches, & grooves in bedrock
Zone of Accumulation
upper part of a glacier where more snow falls than melts
in what direction do glaciers move?
downhill
abraded
scratched
cirque
bowl-shaped erosional scar on the side of a mountain formed by frost action & headword erosion of the glacier
horn
sharp peak that remains after cirques have cut back into a mountain on three or more sides
moraine
mass of glacial till left behind after a glacier has melted
loess
fine-grained, wind-blown deposits
dune
mound or ridge of sand deposited by the wind
mudflow
downhill movements of fine-grained surface material that has been saturated with h20
slump
downward slipping of rock material, usually with a backward rotation
How are stream drainage patterns determined?
by the type & structure of rock over which the stream has been flowing & how old it is
uplifting forces
raise or roughen earth's surface
leveling forces
lower the elevvation of earth's surface
bedrock
solid unbroken rock of Earth's crust