33 terms

Geology Terms

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Weathering
disintegrates rocks
Mass Wasting
Lower hills
Erosion
moves tons of soil
Ice wedging
rain water gets into cracks of Rock and freezes
Shock
temperatures drop from being very hot quickly
Roots
tree roots can break rocks easily
Exfoliation
breaking or peeling away of Rock in layers
Runoff
excess water as it pools on the ground and runs down hill
Gradient
movement down hill at a steep angle
Tributary
numerous streams
Flood Plain
the level land that borders a river that is covered by the river water during a flood
Levees
a natural ridge formed along the edges of rivers as sediment is deposited
Meanders
winding looping curves
Delta
the area where sediment is deposited at the end of a river
Alluvial Fan
occurs in area with little rain
Promontories
high ridges of Rock that project out into the sea
Plastic
deform without breaking
Ice Caps
are smaller ice sheets
Valley Glaciers
are smaller glaciers
Crevasses
deep cracks and fissures
Cirque
a huge bowl shaped depression left by a valley glacier
Arête
a ridge that separates two cirques
Horn
forms when three or more cirques transform a mountain peak into a sharp steeple shaped point
Fjord
is formed from a glacier that carved a valley and fills with sea water
Till
rocks left as a glacier retreats
Meltwater
small streams that form underneath a glacier where debris is deposited
Out wash
is the accumulation of debris from meltwaters
Kettles
are large holes left by melting glaciers
Mass Wasting
the process in which gravity causes downslope movements of Rock, soil, snow, or ice
Avalanche
fast movement of ice and snow downhill
Terracing
convert a smooth slope into stair-like steps
Strip-cropping
planting erosion prone crops with alternating erosion preventing crops
Breakwaters
Fence like structure that reduces the force experienced by waves