Rock Cycle
How are metamorphic rocks created
Heat and Pressure
Who proposed the idea that continents were once joined together?
Wegener
which type of tectonic plate movement results in the formation of mid-ocean ridges?
Divergent Boundary
What are the two types of geoscience processes?
Slow, gradual processes
Fast, Catastrophic event
What are tectonic plates?
Pieces of the Earth's crust
How are igneous rocks created
Melting and cooling
What was the name of Wegener’s idea?
Continental Drift
Where does seafloor spreading happen?
At Mid Ocean Ridges
what is an example of a slow geoscience process
erosion, plate movement, etc.
What type of plate boundary occurs when plates move apart?
Divergent Boundary
How are sedimentary rocks created
compaction and cementation
What supercontinent did Wegener say all continents were once part of?
Pangaea
Where is seafloor recycled?
Subduction zones (trenches)
what is an example of a fast geoscience process
landslide, etc.
What type of boundary occurs when plates collide?
Convergent Boundary
What process breaks rocks into smaller pieces without moving them?
Weathering
Why did scientists first reject Wegener’s theory?
He couldn't explain how continents moved
Where is older seafloor located
Farther away from the ridge
What process drops sediment in a new place?
Deposition
What type of boundary occurs when plates slide past each other?
Transform Boundary
What type of rock is formed from an existing rock
Metamorphic
What were the 4 pieces of evidence that supported the continental drift theory
-Same fossils on different continents
-Continents fit together like puzzle pieces
-Glacial evidence found in warm climates
-Similar mountain ranges and rock types on different continents
What process helped prove continental drift was correct?
Seafloor spreading
What is an example of a slow geoscience process that causes a rapid event?
An earthquake resulting from tectonic plate movement
What causes tectonic plates to move?
Convection currents