Continental drift
Boundaries & plate interactions
Plate interactions
Types and properties of plates
potpourri (random)
100
This man in the 1500s was the first to suggest that Africa and South America were once together
Who was Abraham Ortelius?
100
Type of boundary when plates come together.
Convergent boundary
100
The boundary where you would expect new sea floor to be made.
What is an Ocean Ocean Divergent plate boundary or sea-floor spreading center?
100
This type of crust is thinner and more dense
What is the Ocean crust?
100
This force pulls slabs down in subduction zones
what is gravity?
200
In the Early 1900s this man rediscovered the Idea of Africa and South America being connected. He called it Continental drift.
Who is Alfred Wegener?
200
Type of boundary where plates move apart
Divergent boundary
200
The boundary where you would expect Volcanic island to form.
What is an Ocean - Ocean Convergent plate boundary?
200
This crust is thicker and less dense
What is Continental crust?
200
The Andreas Fault is a type of this.
What is a transform fault?
300
The evidence Alfred Wegner used to support his idea of continental drift
What are Rocks, Fossils and Maps?
300
Type of boundary where plates slide past each other
Transform
300
The plate boundary where you would get large non-volcanic mountain ranges.
What is a Continental - Continental convergent plate boundary?
300
The average thickness of the Ocean crust.
What is 5 kilometers?
300
This happens deep in subduction zones that causes volcanism.
What is melting of rock?
400
The reason that Wegner wasn't believed.
He didn't have explanation for why the continents moved?
400
A Boundary where new ocean crust is made.
What is an Ocean-Ocean Divergent boundary?
400
The feature off the coast of both O - O and O - C where the two plates meet. This is where the deepest parts of the ocean are as well.
What is an ocean Trench?
400
The average thickness of the continental crust
What is 40 kilometers?
400
The rock that the ocean crust is made of.
What is basalt?
500
The process of hot and cold material cycling that drives plate tectonics.
What is mantle convection?
500
A boundary where old ocean crust is destroyed.
Ocean-Ocean or Ocean-Continental convergent boundary.
500
These stripes on the ocean floor are used to determine the age of the sea floor.
What are magnetic reversals or isochrons?
500
The type of crust that always subducts.
What is the ocean crust?
500
The rock that the continental crust is made of.
What is Granite?