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10571252
Geology
Description
Mind Map on Geology, created by Hamdan Jawad on 27/09/2017.
Mind Map by
Hamdan Jawad
, updated more than 1 year ago
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Created by
Hamdan Jawad
almost 7 years ago
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Resource summary
Geology
Crust
Oceanic crust
Ocean-Ocean divergent
Land separate and lava spew out
New ocean crust is formed
Known as mid ocean ridges
Mid atlantic range
Ocean-Continental convergent
Subduction zone, creates a trench
Also creates Volcanoes
Ocean-Ocean convergent
Subduction happens over here
The upper crust has volcanoes form onto it, creating a volcanic arc
Continental Crust
Continent-Continent convergent
Can create mountain such as himalayas
Continent Continent Transform, Strike slip
Produces the largest Earthquakes
San Andreas; Haiti
jasons notes
Convergent boundaries
Usually where all the big and frequent earthquakes happen
Subduction generally takes place over here
Divergent boundaries
EARTHQUAKES
Body
P waves
Primary waves, fastest to reach
Are recorded in vibration
Harder to read the the power of the earthquake
Parallel to the direction of travel
S waves
Shaped like S
Second waves to reach
(S wave time - P wave time) * velocity = distance of earthquake
perpendicular
Surface
Rayleigh
Love
Conditions for earthquakes
Cold, brittle rocks
warm, strong rocks
Rocks deformation
Elastic deformation
Rocks are stretched and respond by elastic rebound and store energy
Can result in Brittle failure
Happens when the rocks break and cant return to how they were before
Liquification
When pressure squeezes out the water out of lose particles
Generally bad
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