Earth
Boundaries
Boundaries 2
PANGEA
Potluck
100
Lithosphere contains
What is upper mantle and crust
100
These are created when continental-continental crust collides
What are mountain ranges?
100
Divergent boundaries move in this direction
What is away from each other
100
Besides the continents "fitting" together like a puzzle, this is another form of evidence of the existence of PANGEA
What are fossil records?
100
The theory that Earth's plates are in constant, slow motion
What is the theory of plate tectonics?
200
This is the middle section of Earth.
What is the mantle?
200
Valleys in the ocean floor created by the collision of oceanic-oceanic crust .
What are trenches?
200
The way the plates move in relation to one another at a transform boundary
What is slide past each other in two opposite directions?
200
Pangea started moving around...
around 200 million years ago?
200
Volcanoes that do not develop along plate boundaries are a result of this phenomenon
What are hot spots
300
The lower mantle and core makes this up
What is the asthenosphere?
300
A chain of islands formed when oceanic-continental crust converges
What are volcanic islands?
300
This formed in the middle of the Atlantic at a divergent boundary, and this country is a part of it
What is a mid Atlantic ridge and Iceland?
300
This country broke away from Africa and formed the Himalayas when it crashed into Asia
What is India?
300
The event that can take place when stress builds up and finally breaks at a transform boundary
What is an earthquake?
400
What drives the plate motions
What is the convection currents in the mantle?
400
The process where the denser crust is forced back into the mantle to be recycled (when oceanic sinks under continental)
What is subduction?
400
This fault is near the place where the North American and Pacific Plate share a transform boundary
What is the San Andreas Fault
400
This country broke away from Antarctica and now is found in the Pacific Ocean
What is Australia?
400
The older crust on a divergent boundary is located closer or further away
What is further away?
500
This plate is the densest type of plate
What is oceanic?
500
An example of volcanic mountains formed by the collision of continental-oceanic crust
What are the Andes Mountains and the Ring of Fire?
500
This land form in Africa is created as the African Plate and the Somalia Plate diverge
What is the E. African Rift?
500
Finally provided a mechanism for the movement of continents to support this theory
What is the theory of continental drift?
500
Volcanoes form at subduction zones because this happens the the magma in the mantle
What is super heated and can go through the crust
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