1st Quarter Sci (Plate Boundaries) Flashcards
Active regions in Earth
Plate Boundary
3 Types of Plate Boundaries
Divergent, Convergent, and Transform Fault
Where two plates move apart from each other.
Divergent Boundaries
New crust is created at the boundary as two lithospheric moves away from each other.
Divergent Boundaries
Known as Constructive plate margins.
Divergent Boundaries
Formation of Divergent Boundaries
Rift Valley and Mid ocean Ridges
Rising magma from the Earth’s mantle to fill the gap (ocean floor).
Seafloor Spreading
Formation when in the land
Rift Valley
Examples of Mountyain chain (any)
East Pacific- Pacific and Cocos Plates
East Pacific - Nazca and Antarctic Plates
Galapagos- Pacific and Juan de Fuca Plates
Nazca, Cocos, and Pacific (triple junction)
When two plates move toward each other.
Convergent Boundaries
Where crust is Destroyed as one plate dives under another.
Convergent Boundaries
Called as Destructive plate margins or subduction
Convergent Boundaries
When one tectonic plate slides beneath another.
Subduction
3 Types of Convergent Boundaries
Oceanic-Continental, Oceanic-Oceanic, and Continental-Continental
Formation Convergent Boundaries
Volcanic Island, Deep sea Trenches, Volcanic Mountains