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50 Cards in this Set

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Disintegration of rock due to volume changes associated with a reduction in pressure as a result of rock that is brought to the surface.
Unloading
A system which processes counteract external changes to the system and stabilize the system by making adjustments within itself
Negative feedback system
Mass movement characterized by a concave up sliding plane and tension cracks
slump
volcanic mudflow
lahar
Occurs when driving forces are greater than resisting forces
mass wasting
Landforms are created by the interplay of these three things:
Driving forces, resistant framework, time
transportation of weathered material
erosion
geomorphic feature characterized by rocks that fall and peel off like and oinion.
exfoliation dome
wetting and drying of rock is very effective for the weathering of
shale
most fundamental form of chemical weathering
dissolution
direction a slope faces with respect to the sun
aspect
slow downslope movement of material
creep
According to Schumm, the meandering wavelength is dependent on...
discharge and %sand silt on riverbanks
two ways a stream capture can occur
intercision and abstraction
the least susceptable mineral to chemical and physical weathering on earth's surface.
quartz
Occur mostly in dry, hot settings
inselburgs
fluvial load where material is dissolved in solution
dissolved load
bedload where grains "hop" along the bottom of the riverbed
saltation
mode of transport that tension on the surface water helps in
floatation
way most fine grained material is transported in a river
suspended load
bedload where grains "roll" along the riverbottom
traction
What is an olgive
alternations of light and dark areas on a photo. They represent swells and ridges. Ridges form in the summer and swells in the winter.
the melting and refreezing of ice due to pressure
regelation
Climax of the Wisconsin glaciation
20ka
small dome-shaped hill of ice that is cored with ice
pingo
wind-blown silt
loess
Tower and cockpit karst form in this kind of climate
tropical
compound sinkholes
uvalda
3 processes acting on shorelines
tides, waves, currents
oscillation in lake level
seiche
recrystalized snow intermediate between snow and glacial ice
firn
stream that flows into a karst feature underground
disappearing stream
uplift associated with freezing groundwaters
frost heave
glaciers can erode in several different ways, name 2
plucking and abrasion
debris accumulated at the terminus of a glacier
end moraine
multiple end moraines formed as a glacier successively retreats
recessional moraine
linear ridges of till accumnulated along valley walls
lateral moraines
fomred as lateral moraines are caught between two tributary glaciers
medial moraines
till-covered areas of low relief lacking ridges
ground moraines
stable most interior portion of a continent with low relief
craton
craton made of very old igneous rock
shield
thin veneer of sedimentary rocks on top of the shield craton
stable platform
What part of the continent is typically the most unstable and has the most relief?
the edges
shallow portions of the ocean that are underlied by continental crust
shelf
if erosion is < uplift _______ is formed
anticlinal ridges
erosion of the underlying softer sediment causes overlying more resistant sediment to fall off as boulders
basal sapping
streams move readily through resistant strate until it hits less resistant rock changing the stream flow
homoclinal shifting
more resistant rock from homoclinal shifting
homoclinal ridges
resistant rocks with a gentle dip
cuestas
resistant rocks with a steep dip
hogbacks