History of Plate Tectonics
The father of continental drift?
Alfred Wagner
Name all three plate boundary types
Convergent Boundary,Divergent Boundary,Transform Boundary
What is a Magnetometer
A device uses to detect small changes in a magnetic field
As rock gets farther away from the mid-ocean ridge would a rock closer to the ridge be older than one that is further away?
No, the rock further away is older.
Has Antarctica always been covered in ice?
No
3 pieces of evidence used by Alfred Wegner to prove continental drift
Puzzle piece fit, Glacial Evidence, Fossil Records, Geological evidence
What are 2 ways the plates move?
Ridge push,Slab pull
What is rifting?
The separation of land masses
What is the oceanic crust mostly composed of?
Basalt
Has the southern magnetic pole always been in the south?
No the Poles flipped in the past
Why was Wegner’s idea of continental drift rejected?
He couldn’t explain how or why the continents moved
What landform is associated with continent-continent convergent boundaries?
Mountains
At which plate boundary do the plates slide past each other?
Transform Boundaries
What type of plate boundary is the mid-ocean ridge?
Divergent
What is the supercontinent cycle?
The process by which the continents come together and break apart
When did Pangea form?
Why are there fossils of the same animal so far away from each other?
Plate movement over time
At which plate boundary do the plates collide?
Convergent Boundaries
What mountain range was formed at the same time as the Ural mountain range?
Appalachian
What do we use to map the ocean floor?
Sonars and Magnetometers
Is Pangea the only supercontinent to ever exist?
No, There have been many others.
Where are the most divergent boundaries found?
On the seafloor
At which plate boundary do the plates split apart?
Divergent Boundaries
How did the Himalayas form?
They formed when the India plate collided with the Eurasian plate
Explain the process of convection?
The process where liquid cools and sinks then heats up and rises continuously