Earth's Interior
The outermost layer of the Earth
What is the crust?
The originator of the theory of "Continental Drift"
Who is Alfred Wegener?
Type of boundary is created when to plates separate. Give an example.
What is divergent?
What is the Mid Atlantic Ridge?
What is East Africa?
Sudden movement due to release of energy
What is an earthquake?
Technical term for "Mountain Building"
What is orogeny?
An elastic layer just under the crust
What is the Mantle?
The greatest weakness of the theory of Continental Drift
What is it did not propose a mechanism for continents to move?
Type of boundary that is created when two plates collide. Give an example
What is Convergent?
What is the Indian and Asian plate -> Himylayas
The point in the interior of the Earth where an earthquake happens
What is the focus?
A Taller mountain is usually
What is older?
The only liquid layer in the Earth's interior
What is the Outer Core?
The name of the super continent that existed 250 million years ago and the two continents it was made of
What is Pangea? What are Laurasia and Gondwanaland?
Type of boundary created when two plates run along each other. Give an example.
What is transform?
California-> Pacific Plate and North American Plate
The point on the crust above where an earthquake happens
What is the Epicanter?
Provinces of VA West to East
What are
Appalachian Plateau
Valley and Ridge
Blue Ridge
Piedmont
Coastal Plain
The two types of seismic waves which travel in the Earth's interior
What are P-Waves and S-Waves?
Proposed the theory of seafloor spreading that stated __________.
Who is Harry Hess?,And what is Convection currents in the Mantle push magma to the surface creating new ocean floor and pushing old ocean floor in both directions?
When an oceanic plate slides underneath a continental plate like the Pacific Plate under South America.
What is subduction?
Seismograph stations needed to locate an earthquake
What is three?
Mountains created by collisions of continental plates like the Appalachians or Alps
What is Folded Mountains?
What is the crust and a small part of the upper mantle called?
What elastic layer does it "float" on?
What is the lithosphere?
What is the asthenosphere?
J. Tuzo Wilson's theory of plate tectonics states __________.
What is the Earth's crust is divided into large rigid plates and these plates "float" on the Asthenosphere?
When an oceanic plate slides underneath another oceanic plate these two things are created
What are a trench and a volcanic island arc?
Two scales used to measure an earthquake
What are richter and mercalli?
Mountains created by tensional stress like the Tetons or Sierra Nevada
What are Fault-Block mountains?