What is Alfred Wegener's best known for?
Wegener put together a tremendous amount of evidence that the continents had been joined.
What are the tectonic plates
the crusts different rocky sections called tectonic plates
What is the Transform Boundary
-The boundary between tectonic plates that are sliding past each other horizontally
What is formed by magma pushing up from the mantle and cooling ?
New land
How long ago was the continents joined together?
around 300 million years ago
What is the Lithosphere
- The solid, outer layer of earth that consists of the crust and the rigid upper part of the mantle
What is the Continental Drift
Hypothesis that the continents once formed a single land mass, broke up, and drifted to their present locations
Subduction Zone
when two plates collide and the denser (hevier) plate descends below the other
What is Pangea
All of the continents connected together before they separated.
Is the lithosphere based off of it’s composition or mechanical properties.
mechanical properties.
Seafloor Spreading
When new oceanic crust form as magma rises towards the surface and solidifies at the mid-ocean ridge
At which type of boundary does subduction zone this take place?
convergent plate boundary
Crust
-The thin and solid outermost layer of the Earth above the mantle.
What is mechanical properties
Determines how a material will react when forces are applied to it
Convergent Boundary
The boundary formed by the collision of two plates
True or False
The core-mantle-crust divisions are based on composition.
True
What is Asthenosphere.
The soft layer of the mantle on which the tectonic plates move
Divergent Boundary
The boundary between two tectonic plates that are moving away from each other