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Earth ch.3

TermDefinition
Erosion the process by which water wind ice or gravity moves weathered rock particles
sediment small solid pieces of material that come from rocks or the remains of organisms
deposition process by which sediment is laid down in new locations
gravity the attractive force between objects, the force that moves objects downhill
mass movement any one of several processes by which gravity moves sediment downhill
runoff water that flows over the ground surface rather than soaking into the ground
rill a tiny groove in soil made by flowing water
gully a large channel in soil that carries runoff water after a rainstorm
stream a channel through which water is continually flowing down hill
tributary a stream or river that flows into a larger river
flood plain the flat wide area of land along a river
meander a loop like bend in the coarse of a river
oxbow lake a meander cut of from a river
delta a landform made of sediment that is decomposited where a river flows into an ocean or lake
allvia fan a wide sloping deposit of sediment formed where a stream leaves a mountain range
ground water water that fills the cracks and spaces underground soil and rock layers
stalactite an icicle like structure that hangs from the ceiling of a cave; hold TITE to the tops of caves
stalagmite a column like form that grows upwards from the floor of a cave; I LAG/ Freeze to the ground of caves
karst topography a region in which a later of limestone close to the surface creates deep valleys , caverns,and sinkholes
Glacier any large mass of ice that moves slowly over land
continental glacier a glacier that covers much of a continent or large island
ice age time in earths history during which glaciers covered large parts of the surface
valley glacier a long narrow glacier that forms when snow and ice build up in a mountain valley
plucking the process by which a glacier picks up rocks as it flows over the land
till the sediments deposited directly by a glacier
moraine a ridge formed by the till deposited at the edge of a glacier
kettle a small depression that forms when a chunk of ice is left in glacial till
headland a part of the shore that sticks out into the ocean
beach wave-washed sediment along a coast
longshore drift the movement of water and sediment down a beach caused by waves coming into shore at an angle
spit a beach formed by longshore drift that projects like a finger out in to the water
deflation the process by which wind removes surface materials
sand dune a deposit of wind blown sand
loess a wind formed deposit made of fine particles of clay and silt
Created by: jac201020918