slopes and the slope process] Flashcards

1
Q

what 2 movements affect slopes and slope processes

A

uplift is the upward movement of materials in relation to the sea level this process normally occurs during the formation of the slope.

denudation - the loss of mass of from a landscape occur through surface process erosions changes the surrounding occurs lower down

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2
Q

the stability of slopes can be determined through

A

f= resting forces of the slope/ applied forces of the slope
if f=1 then the slope is stable

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3
Q

f can be influenced by external factors such as

A

rain - rest and be thankful increase liklehiood of landslides
shocks earthquakes vibrations from human activity

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4
Q

Internal weathering

A

overloading weight of snow

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5
Q

resisting forces can be altered by (human activity)

A

deforestation teh removal of teh trees can alter the cohesion of the tree roots can raise water tables and increase soil cracking.

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6
Q

how can slopes be altered human impacts or human impacts

A

climate change deforestation
social marjininastion can occur Diaz et al
this is not felt equally the impacts on humans
landslides can occur at high economic costs to communities.

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7
Q

slope failure 3 process

A

slides , flow heaves

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8
Q

flow

A

mud flow landslides, does not need to be steep low angles slopes
high fluidity can work
procuces fine grained material

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9
Q

slides rotational slides

A

occur very fast must have failure on at least 2 planes
franks slide Alta candy 100 secs 70 dead

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10
Q

heaves what are

A

produce creeps distribuance of the soil perpendicular to the slope gravity then forces the downward movement

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