Vocabulary
The thinnest layer of the Earth
What is the crust?
The number of main layers of the Earth.
What is four?
He first proposed the Continental Drift Theory
Who is Alfred Wegener?
Earthquakes and volcanoes are usually located along these
What are plate boundaries?
The Himalayan mountains are the result of compression at this type of boundary
What is a convergent boundary?
A number of rigid, but moving, pieces of Earth's surface
What are tectonic plates?
The thickest layer of the Earth
What is the mantle?
Evidence of matching Mesosaurus fossils were found on these two continents
What is Africa and South America?
The mid-ocean ridge is an example of this boundary and the beginning site of this Hessian concept
What is a divergent boundary and seafloor spreading?
Because of this physical property, hot air or liquid rises
What is density?
Plates float on top of this
What is the asthenosphere?
Evidence of tropical plants were found on this continent... what a climate anomaly!
What is Antarctica?
Name six of the major plates
What is North American plate, South American plate, Eurasian Plate, Indian plate, Australian plate, African plate, and Antarctica plate)?
The stress that often causes earthquakes
What is shearing?
States that youngest rocks of ocean floor are at divergent boundaries, moving outward
What is seafloor spreading?
The rigid part of the Earth including the crust and the upper mantle (makes up the plates of the Earth)
What is the lithosphere?
Rodinia, Gondwana, and Pangaea all have this in common
What are all names of supercontinents?
This is the mechanism for the plates to move
What is convection cycles in the asthenosphere
This geologic phenomenon in California is an example of a transform boundary
What is the San Andreas Fault?
Although the hottest layer of the Earth...this layer is solid metal
What is the inner core?
The thinner, but denser, of Earth's crust is found here
What is under the ocean?
Continental Drift Theory was not accepted because it did not explain this
What is how the continents moved?
The three types of convergent boundaries
What is oceanic to oceanic, oceanic to continental, and continental to continental?
This person used sonar to map the bottom of the ocean and discovered the mid-ocean ridge in the Atlantic Ocean
Who is Marie Tharp?