Boundaries
The type of current that pulls plates apart
convection current
Where can transform boundaries be found? (HINT: in the USA)
California
She helped map the ocean floor
The supercontinent that is theorized to have broken apart due to plate tectonics.
Pangea
Mountains or earthquakes or both.
What is another name for lithosphere?
Crust
The part of the mid ocean ridge above water
Iceland
Plate tectonics are the plates under the earth that make up the earths surface, they move because of intense heat.
What is the theory of plate tectonics
Wegener's theory
Continental drift
What type of boundary is it when new crust forms?
Divergent Boundary
When an oceanic plate and continental plate collide.
What causes subduction to occur?
What mountain range is formed by continental-continental boundaries?
Himalayan Mountain Range (Himalayas) (Mt. Everest)
The evidence the nineteenth century longitude determinations (longitude lines on a map), the shape of continents, fossil evidence, matching rock types and geological structures, and ancient climate patters
What evidence did Alfred Wegener use?
A steep sided depression in the ocean floor
Trench
What type of boundary is it when two plates slide past each other?
Transform Boundary
Convection Currents
What causes plates to move?
A major tsunami his this region in 2011 after a 9.0 earthquake.
Japan
What guy was not trusted with his idea of movement of plate tectonics?
Alfred Wegener
Made up of the crust and a tiny bit of the upper mantle, this layer is divided into several constantly (very slowly) moving plates of solid rock that hold the continents and oceans.
Lithosphere
continental-continental, oceanic-oceanic, and oceanic-continental
What are the three types of convergent boundaries?
Broken parts of lithosphere that carry continents and oceans
What are plate tectonics?
Volcanic island arcs form here because of the subduction of the oceanic plate at the convergent plate boundary (in the U.S)
Alaska
He believed plate tectonics moved and that is what formed continents and oceans.
Who Alfred Wegener's?
The plates of the lithosphere move (or float) on this hot, malleable semiliquid zone in the upper mantle, directly underneath the lithosphere.
Asthenosphere