Contiental Drift
This is the name of the proposed "supercontinent" where all the earth's continents were once joined together.
What is Pangaea?
Seafloor Spreading occurs at what type of plate boundary?
What is a divergent boundary?
This is the underlaying (plastic-rock) flowing layer which allows the earth's plates to move.
What is the Asthenosphere?
This type of plate boundary involves two plates moving apart from one another.
What is a divergent boundary?
These features are produced on earth when two continents collide.
What are mountains?
This is the meteorologist who first proposed the Theory of Continental Drift
Who is Alfred Wegener?
These features form as new crust rises to the surface during seafloor spreading
What are mid-ocean ridges?
This is the rigid upper layer of the earth which inlcudes the earth's crust and upper most mantle.
What is the lithosphere?
This type of plate boundary involves two plates moving toward each other.
What is a convergent boundary?
These features are produced on the coasts of continents where oceanic crust moves underneath the continent.
What are volcanoes or volcanic arcs?
This reason was why many scientists did not believe Alfred Wegener's Plate Tectonic Theory.
What is he had no evidence?
The geological process of Seafloor spreading occurs when which type of plates split apart from each other?
What tectonic (oceanic-oceanic) plates?
Which layer of Earth makes up the crust and the upper most part of the mantle. This is the rigid layer that is broken into sections called plates.
What is the Lithosphere?
This type of plate boundary involves one plate sliding past another plate.
What is a transform boundary?
These natural disasters occur when a sudden movement occurs along transform boundaries.
What are earthquakes?
These are the types of evidence that were initially used to support the Theory of Continental Drift.
What are similar shapes of coastlines (puzzle pieces) and fossil evidence?
This is type of land is formed when the sea floor spreads
What is new land
When the heat source is removed from a fluid, the convection current will?
What is will eventually stop (not move)?
This is the term for one plate being forced underneath another plate.
What is Subduction?
This is the name of fault found in California where several major earthquakes have occured.
What is the San Andreas Fault?
This theory states that the continents were once joined together, and have moved over time.
What the Continental Drift Theory?
Mid-Ocean Ridges form long chains of ______ that rise up from the ocean floor
What are mountains?
Scientists think that convection currents that move the plates flow in which layer of the Earth?
What is the Asthenosphere.
This is the term for the fracture created when one plate suddenly slides past another plate.
What is a fault?
These two features form in the ocean when one oceanic plate is forced below another oceanic plate
What are trenches and volcanic islands?