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Chapter 4 Lesson 2 -- Shaping Earth's Surface
Terms in this set (12)
The amount of energy released during an earthquake.Ranges from less than 1 to 9.9The higher the number the stronger the earthquake.
Is the vibrations caused by the rupture and sudden movementof rocks along a break or a crack in Earth's crust.
Is a crack or a fracture in Earth's crust where movement occurs.
The crust moves horizontally past each other.
Features that cross the fault such as streams
In oceans these boundaries form mid-ocean
On land these boundaries form valleys.
CONVERGENT BOUNDARY SUBDUCTION
Subduction zone (one plate goes
under the other).
CONVERGENT BOUNDARY NO SUBDUCTION
When neither plate subducts the plates
become crumpled and deformed.
This results in the formation of tall mountains.
Are vents in Earth's crust
through which molten
(melted) rock flows.
Molten (melted) rock stored beneath
Is magma that erupts onto Earth's
1- Slowly and calm, lava flows over the
2- Violent ash and lava bombs sent into the
MID OCEAN RIDGE
Long, narrow mountains formed
by magma at divergent
New crust forms
THIS SET IS OFTEN IN FOLDERS WITH...
Chapter 4, Lesson 1: Earth's Moving Surface
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